Western Digital Technologies, Inc.

États‑Unis d’Amérique

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Type PI
        Brevet 1 533
        Marque 235
Juridiction
        International 886
        États-Unis 737
        Europe 76
        Canada 69
Propriétaire / Filiale
[Owner] Western Digital Technologies, Inc. 1 730
STEC, Inc. 33
WD Media, LLC 4
Western Digital (Fremont), LLC 1
Date
Nouveautés (dernières 4 semaines) 16
2025 août (MACJ) 6
2025 juillet 8
2025 juin 9
2025 mai 8
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Classe IPC
G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement 411
G06F 12/02 - Adressage ou affectationRéadressage 186
G06F 12/00 - Accès à, adressage ou affectation dans des systèmes ou des architectures de mémoires 118
G06F 11/10 - Détection ou correction d'erreur par introduction de redondance dans la représentation des données, p. ex. en utilisant des codes de contrôle en ajoutant des chiffres binaires ou des symboles particuliers aux données exprimées suivant un code, p. ex. contrôle de parité, exclusion des 9 ou des 11 108
G06F 13/16 - Gestion de demandes d'interconnexion ou de transfert pour l'accès au bus de mémoire 58
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Classe NICE
09 - Appareils et instruments scientifiques et électriques 210
42 - Services scientifiques, technologiques et industriels, recherche et conception 70
35 - Publicité; Affaires commerciales 25
37 - Services de construction; extraction minière; installation et réparation 22
16 - Papier, carton et produits en ces matières 21
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Statut
En Instance 74
Enregistré / En vigueur 1 694
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1.

Buffer Layers to Grow BiSb and YPtBi to Match the Crystal Symmetry of Interlayers and Ferromagnetic layers to Generate Spin-Polarized Current

      
Numéro d'application 19041211
Statut En instance
Date de dépôt 2025-01-30
Date de la première publication 2025-08-07
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Le, Quang
  • York, Brian R.
  • Gribelyuk, Michael A.
  • Liu, Xiaoyong
  • Le, Son T.
  • Maeda, Maki
  • Takano, Hisashi

Abrégé

The present disclosure generally relates to topological material based spin-orbit torque (SOT) devices. The SOT device comprises a seed layer, a texture layer disposed on the seed layer, a first barrier layer disposed on the texture layer, a ferromagnetic (FM) layer disposed over the first barrier layer, a topological insulator (TI) or topological semi-metal (TSM) layer disposed over the first barrier layer, the TI or TSM layer comprising YPtBi or BiSb, and a second barrier layer disposed between the FM layer and the TI or TSM layer. In one embodiment, the texture layer, the first and second barrier layers, and the FM layer have a (100) orientation, and the TI or TSM layer comprises (012) BiSb or (100) YPtBi. In another embodiment, the texture layer, the first and second barrier layers, and the FM layer have a (110) orientation, and the TI or TSM layer comprises (110) YPtBi.

Classes IPC  ?

  • H10N 50/85 - Matériaux de la région active
  • G11B 5/00 - Enregistrement par magnétisation ou démagnétisation d'un support d'enregistrementReproduction par des moyens magnétiquesSupports d'enregistrement correspondants
  • G11B 5/39 - Structure ou fabrication de têtes sensibles à un flux utilisant des dispositifs magnétorésistifs
  • G11C 11/16 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage électriques ou magnétiques particuliersÉléments d'emmagasinage correspondants utilisant des éléments magnétiques utilisant des éléments dans lesquels l'effet d'emmagasinage est basé sur l'effet de spin
  • H10N 50/10 - Dispositifs magnéto-résistifs

2.

BUFFER LAYERS TO GROW BISB AND YPTBI TO MATCH THE CRYSTAL SYMMETRY OF INTERLAYERS AND FERROMAGNETIC LAYERS TO GENERATE SPIN-POLARIZED CURRENT

      
Numéro d'application US2025013795
Numéro de publication 2025/166009
Statut Délivré - en vigueur
Date de dépôt 2025-01-30
Date de publication 2025-08-07
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Le, Quang
  • York, Brian R.
  • Gribelyuk, Michael A.
  • Liu, Xiaoyong
  • Le, Son T.
  • Maeda, Maki
  • Takano, Hisashi

Abrégé

The present disclosure generally relates to topological material based spin-orbit torque (SOT) devices. The SOT device comprises a seed layer, a texture layer disposed on the seed layer, a first barrier layer disposed on the texture layer, a ferromagnetic (FM) layer disposed over the first barrier layer, a topological insulator (Tl) or topological semi-metal (TSM) layer disposed over the first barrier layer, the Tl or TSM layer comprising YPtBi or BiSb, and a second barrier layer disposed between the FM layer and the Tl or TSM layer. In one embodiment, the texture layer, the first and second barrier layers, and the FM layer have a (100) orientation, and the Tl or TSM layer comprises (012) BiSb or (100) YPtBi. In another embodiment, the texture layer, the first and second barrier layers, and the FM layer have a (110) orientation, and the Tl or TSM layer comprises (110) YPtBi.

Classes IPC  ?

  • H10N 50/85 - Matériaux de la région active
  • H01F 10/32 - Multicouches couplées par échange de spin, p. ex. superréseaux à structure nanométrique
  • G11C 11/16 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage électriques ou magnétiques particuliersÉléments d'emmagasinage correspondants utilisant des éléments magnétiques utilisant des éléments dans lesquels l'effet d'emmagasinage est basé sur l'effet de spin
  • H10B 61/00 - Dispositifs de mémoire magnétique, p. ex. dispositifs RAM magnéto-résistifs [MRAM]

3.

SHUNT REDUCING MIGRATION BARRIER LAYER MATERIALS AND INSERTION TECHNIQUES FOR EPITAXIAL TOPOLOGICAL MATERIALS

      
Numéro d'application US2025013800
Numéro de publication 2025/166014
Statut Délivré - en vigueur
Date de dépôt 2025-01-30
Date de publication 2025-08-07
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Le, Quang
  • York, Brian R.
  • Hwang, Cherngye
  • Liu, Xiaoyong
  • Gribelyuk, Michael A.
  • Takano, Hisashi

Abrégé

The present disclosure generally relates to topological insulator (Tl) based or topological semi-metal (TSM) based spin-orbit torque (SOT) devices. The SOT device comprises a buffer layer, a first migration barrier layer, a Tl or TSM layer, a second migration barrier layer, an interlayer, a ferromagnetic layer, and a capping layer. The Tl or TSM layer is disposed in contact with the first and second migration barrier layers. The SOT device can also comprise a buffer layer, a ferromagnetic layer, an interlayer, a first migration barrier layer, a Tl or TSM layer, a second migration barrier layer, and a capping layer. The Tl or TSM layer is disposed in contact with the first and second migration barrier layers.

Classes IPC  ?

  • H10B 61/00 - Dispositifs de mémoire magnétique, p. ex. dispositifs RAM magnéto-résistifs [MRAM]
  • H10N 50/85 - Matériaux de la région active
  • G11C 11/16 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage électriques ou magnétiques particuliersÉléments d'emmagasinage correspondants utilisant des éléments magnétiques utilisant des éléments dans lesquels l'effet d'emmagasinage est basé sur l'effet de spin

4.

Shunt Reducing Migration Barrier Layer Materials and Insertion Techniques for Epitaxial Topological Materials

      
Numéro d'application 19041235
Statut En instance
Date de dépôt 2025-01-30
Date de la première publication 2025-08-07
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Le, Quang
  • York, Brian R.
  • Hwang, Cherngye
  • Liu, Xiaoyong
  • Gribelyuk, Michael A.
  • Takano, Hisashi

Abrégé

The present disclosure generally relates to topological insulator (TI) based or topological semi-metal (TSM) based spin-orbit torque (SOT) devices. The SOT device comprises a buffer layer, a first migration barrier layer, a TI or TSM layer, a second migration barrier layer, an interlayer, a ferromagnetic layer, and a capping layer. The TI or TSM layer is disposed in contact with the first and second migration barrier layers. The SOT device can also comprise a buffer layer, a ferromagnetic layer, an interlayer, a first migration barrier layer, a TI or TSM layer, a second migration barrier layer, and a capping layer. The TI or TSM layer is disposed in contact with the first and second migration barrier layers.

Classes IPC  ?

  • G11B 5/39 - Structure ou fabrication de têtes sensibles à un flux utilisant des dispositifs magnétorésistifs
  • G11B 5/00 - Enregistrement par magnétisation ou démagnétisation d'un support d'enregistrementReproduction par des moyens magnétiquesSupports d'enregistrement correspondants
  • G11C 11/16 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage électriques ou magnétiques particuliersÉléments d'emmagasinage correspondants utilisant des éléments magnétiques utilisant des éléments dans lesquels l'effet d'emmagasinage est basé sur l'effet de spin
  • H10N 50/10 - Dispositifs magnéto-résistifs
  • H10N 50/85 - Matériaux de la région active

5.

RUAI AND MGTIO LAMINATION FOR EFFECTIVE BUFFER AND INTERLAYERS FOR TOPOLOGICAL MATERIAL LAYERS

      
Numéro d'application US2025013788
Numéro de publication 2025/166002
Statut Délivré - en vigueur
Date de dépôt 2025-01-30
Date de publication 2025-08-07
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Le, Quang
  • York, Brian R.
  • Gribelyuk, Michael A.
  • Liu, Xiaoyong
  • Le, Son T.
  • Maeda, Maki
  • Takano, Hisashi

Abrégé

The present disclosure generally relates to topological insulator (Tl) or a topological semi-metal (TSM) based spin-orbit torque (SOT) devices. The SOT device comprises a buffer layer, a Tl or TSM layer, an interlayer, and a ferromagnetic layer. The buffer layer comprising a texture layer structure, where the texture layer structure comprises one or more of: (1) two or more laminated layers of RuAI and MgTiO or MgO, (2) laminations of MgO and W, (3) W-X body-centered cubic (bcc) alloys, where X is one or more of Ta, Hf, Ti, V, Nb, and Mo, or (4) combinations thereof. The texture layer structure has a (100) orientation. The Tl or TSM layer comprises BiSb having a (012) orientation or YPtBi having a (100) orientation. The buffer layer may further comprise one or more body-centered cubic layers and an oxide layer.

Classes IPC  ?

6.

Data storage device

      
Numéro d'application 29755015
Numéro de brevet D1087083
Statut Délivré - en vigueur
Date de dépôt 2020-10-16
Date de la première publication 2025-08-05
Date d'octroi 2025-08-05
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Behar, Yves
  • Stuart, William
  • Ihrig, Mirko
  • Choi, Jueun
  • Peng, Steven Tzu-Yen
  • Sterzick, Mark F.
  • Vanderpol, Gregory A.

7.

RuAl and MgTiO Lamination For Effective Buffer and Interlayers For Topological Material Layers

      
Numéro d'application 19040639
Statut En instance
Date de dépôt 2025-01-29
Date de la première publication 2025-07-31
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Le, Quang
  • York, Brian R.
  • Gribelyuk, Michael A.
  • Liu, Xiaoyong
  • Le, Son T.
  • Maeda, Maki
  • Takano, Hisashi

Abrégé

The present disclosure generally relates to topological insulator (TI) or a topological semi-metal (TSM) based spin-orbit torque (SOT) devices. The SOT device comprises a buffer layer, a TI or TSM layer, an interlayer, and a ferromagnetic layer. The buffer layer comprising a texture layer structure, where the texture layer structure comprises one or more of: (1) two or more laminated layers of RuAl and MgTiO or MgO, (2) laminations of MgO and W, (3) W-X body-centered cubic (bcc) alloys, where X is one or more of Ta, Hf, Ti, V, Nb, and Mo, or (4) combinations thereof. The texture layer structure has a (100) orientation. The TI or TSM layer comprises BiSb having a (012) orientation or YPtBi having a (100) orientation. The buffer layer may further comprise one or more body-centered cubic layers and an oxide layer.

Classes IPC  ?

  • H01F 10/32 - Multicouches couplées par échange de spin, p. ex. superréseaux à structure nanométrique
  • G11B 5/39 - Structure ou fabrication de têtes sensibles à un flux utilisant des dispositifs magnétorésistifs
  • H10B 61/00 - Dispositifs de mémoire magnétique, p. ex. dispositifs RAM magnéto-résistifs [MRAM]

8.

DOPANTS TO INCREASE BISBX BANDGAP FOR OPTIMAL CPP CONDUCTIVITY

      
Numéro d'application US2025010737
Numéro de publication 2025/159902
Statut Délivré - en vigueur
Date de dépôt 2025-01-08
Date de publication 2025-07-31
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Le, Quang
  • York, Brian R.
  • Gribelyuk, Michael A.
  • James, Jason S.
  • Takano, Hisashi
  • Liu, Xiaoyong
  • Le, Son T.
  • Osman, Hassan
  • Maeda, Maki

Abrégé

Current-perpendicular-to-plane (CPP) spin orbit torque (SOT) devices generally require a lower bulk conductivity to minimize shunting while maintaining a high spin Hall angle and strong thermal stability. A CPP SOT device comprises a ferromagnetic layer and a topological insulating (Tl) layer comprising one of: BiSb doped with Ge and MgTiO; C; Z; ZTiO; or ZO, where Z is one of Mg, Be, Ca, Sr, or Ba. Doping the Tl layer comprising BiSb decreases the bulk conductivity of the Tl layer while increasing the melting temperature of the Tl layer. The Tl layer has a thickness between about 50 A to about 600 A, a conductivity between about 0.2 x105ohm-1nr-1to about 1.1x105ohm-1nr-1, and a melting point between about 293 °C to about 302 °C. The CPP SOT device may further comprise a buffer layer, a first interlayer, a second interlayer, and a cap layer.

Classes IPC  ?

  • G11C 11/16 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage électriques ou magnétiques particuliersÉléments d'emmagasinage correspondants utilisant des éléments magnétiques utilisant des éléments dans lesquels l'effet d'emmagasinage est basé sur l'effet de spin
  • H10N 50/10 - Dispositifs magnéto-résistifs
  • H10N 52/80 - Détails de structure
  • C22C 12/00 - Alliages à base d'antimoine ou de bismuth

9.

Dopants to Increase BiSbX Bandgap for Optimal CPP Conductivity

      
Numéro d'application 19011149
Statut En instance
Date de dépôt 2025-01-06
Date de la première publication 2025-07-31
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Le, Quang
  • York, Brian R.
  • Gribelyuk, Michael A.
  • James, Jason S.
  • Takano, Hisashi
  • Liu, Xiaoyong
  • Le, Son T.
  • Osman, Hassan
  • Maeda, Maki

Abrégé

Current-perpendicular-to-plane (CPP) spin orbit torque (SOT) devices generally require a lower bulk conductivity to minimize shunting while maintaining a high spin Hall angle and strong thermal stability. A CPP SOT device comprises a ferromagnetic layer and a topological insulating (TI) layer comprising one of: BiSb doped with Ge and MgTiO; C; Z; ZTiO; or ZO, where Z is one of Mg, Be, Ca, Sr, or Ba. Doping the TI layer comprising BiSb decreases the bulk conductivity of the TI layer while increasing the melting temperature of the TI layer. The TI layer has a thickness between about 50 Å to about 600 Å, a conductivity between about 0.2×105 ohm−1 m−1 to about 1.1×105 ohm−1 m−1, and a melting point between about 293° C. to about 302° C. The CPP SOT device may further comprise a buffer layer, a first interlayer, a second interlayer, and a cap layer.

Classes IPC  ?

  • H10N 50/85 - Matériaux de la région active
  • G11B 5/39 - Structure ou fabrication de têtes sensibles à un flux utilisant des dispositifs magnétorésistifs
  • H10N 50/10 - Dispositifs magnéto-résistifs
  • H10N 52/80 - Détails de structure

10.

Electronic device

      
Numéro d'application 29957746
Numéro de brevet D1086126
Statut Délivré - en vigueur
Date de dépôt 2024-08-15
Date de la première publication 2025-07-29
Date d'octroi 2025-07-29
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Peng, Steven Tzu-Yen
  • Vanderpol, Gregory A.
  • Sterzick, Mark F.

11.

Harmonic sensor phase error detection for data storage devices

      
Numéro d'application 18889827
Numéro de brevet 12374362
Statut Délivré - en vigueur
Date de dépôt 2024-09-19
Date de la première publication 2025-07-29
Date d'octroi 2025-07-29
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s) Eaton, Robert

Abrégé

Example systems, data storage devices, and methods for using a harmonic sensor in the read channel of a data storage device to determine phase error are described. The data storage device includes a storage medium with data tracks and a head that can be positioned for reading and writing those tracks. A tone pattern may be written to a data track and a read signal from the tone pattern may subsequently be processed through the harmonic sensor to acquire amplitude data corresponding differences between a target frequency of the tone pattern and a read frequency from the read signal. The amplitude data may be processed to determine phase error values that correspond to an operating condition during writing, such as mode hops and/or down track thermal gradients related to operation of a laser during heat assisted magnetic recording.

Classes IPC  ?

  • G11B 7/1263 - Commande de la puissance pendant la transduction, p. ex. par surveillance
  • G11B 5/00 - Enregistrement par magnétisation ou démagnétisation d'un support d'enregistrementReproduction par des moyens magnétiquesSupports d'enregistrement correspondants
  • G11B 5/012 - Enregistrement, reproduction ou effacement sur des disques magnétiques
  • G11B 5/596 - Disposition ou montage des têtes par rapport aux supports d'enregistrement comportant des dispositions pour déplacer la tête dans le but de maintenir l'alignement relatif de la tête et du support d'enregistrement pendant l'opération de transduction, p. ex. pour compenser les irrégularités de surface ou pour suivre les pistes du support pour suivre les pistes d'un disque
  • G11B 20/10 - Enregistrement ou reproduction numériques

12.

HIGH TEMPERATURE LUBRICANTS FOR MAGNETIC MEDIA HAVING AROMATIC LINKER MOIETY

      
Numéro d'application US2025010803
Numéro de publication 2025/155468
Statut Délivré - en vigueur
Date de dépôt 2025-01-08
Date de publication 2025-07-24
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Maksuta, Daniel Demori
  • Wen, Jianming
  • Lee, Charles Cheng-Hsing

Abrégé

A lubricant for magnetic media according to general formula (I): Rv1-Rb1-Re1-Rc-Re2-Rb2-Rv2(I); where Rc is an optionally non-fluorinated divalent linking segment comprising a first at least one anchoring functional group engageable with a protective overcoat of a magnetic recording medium; where each Re1and Re222; where each Rb1and Rb2independently is a chain segment comprising at least one of a fluoroalkyl ether moiety, a fluoroalkenyl ether moiety, a perfluoroalkyl ether moiety, a perfluoroalkenyl ether moiety, or a combination thereof; and where each of Rv1and Rv2, when present, independently each has a second at least one anchoring functional group engageable with the protective overcoat of a magnetic recording medium. -Re1-Rc-Re2n22, wherein M is H, and n is from 1 to 10.

Classes IPC  ?

  • C10M 105/54 - Compositions lubrifiantes caractérisées en ce que le matériau de base est un composé organique non macromoléculaire contenant des halogènes contenant du carbone, de l'hydrogène, des halogènes et de l'oxygène
  • C10M 107/38 - Compositions lubrifiantes caractérisées en ce que le matériau de base est un composé macromoléculaire contenant des halogènes
  • C07C 43/174 - Éthers non saturés contenant des atomes d'halogène contenant des cycles aromatiques à six chaînons
  • C08G 65/00 - Composés macromoléculaires obtenus par des réactions créant une liaison éther dans la chaîne principale de la macromolécule
  • G11B 5/012 - Enregistrement, reproduction ou effacement sur des disques magnétiques
  • G11B 5/725 - Revêtements protecteurs, p. ex. antistatiques contenant un lubrifiant
  • G11B 5/00 - Enregistrement par magnétisation ou démagnétisation d'un support d'enregistrementReproduction par des moyens magnétiquesSupports d'enregistrement correspondants

13.

ORGANIC RANKINE CYCLE FOR DATA CENTER ELECTRONICS COOLING AND THERMAL ENERGY RECOVERY

      
Numéro d'application US2025010592
Numéro de publication 2025/151434
Statut Délivré - en vigueur
Date de dépôt 2025-01-07
Date de publication 2025-07-17
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Zebian, Hussam
  • Hirano, Toshiki
  • Jones, Neale

Abrégé

A technique for recovering power from data center waste heat involves an organic Rankine cycle which includes pumping an organic working fluid through a low-temperature preheater chamber configured to exchange relatively low-temperature waste heat from low-temperature data storage devices to the organic working fluid flowing through the preheater chamber, pumping the working fluid through a high-temperature evaporator thermally coupled with the preheater chamber and configured to exchange relatively high-temperature waste heat from high-temperature CPUs to the working fluid flowing through the evaporator, and pumping the working fluid vapor from the evaporator to an expander for generating power via expansion of the working fluid. The preheater and evaporator may be directly incorporated with the enclosure box housing the various heat-generating components.

Classes IPC  ?

  • G06F 1/20 - Moyens de refroidissement
  • H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
  • F24S 80/20 - Fluides vecteur spécialement adaptés pour les collecteurs de chaleur solaire

14.

DOPANTS TO DECREASE BISBX'S BANDGAP FOR OPTIMAL CURRENT-IN-PLANE (CIP) CONDUCTIVITY

      
Numéro d'application US2025010732
Numéro de publication 2025/151514
Statut Délivré - en vigueur
Date de dépôt 2025-01-08
Date de publication 2025-07-17
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Le, Quang
  • York, Brian R.
  • Liu, Xiaoyong
  • Le, Son T.
  • Gribelyuk, Michael A.
  • Takano, Hisashi

Abrégé

The present disclosure generally relates to topological semi-metal (TSM) and topological insulator (Tl) based spin-orbit torque (SOT) devices and a method of forming thereof. Tl or TSM-based SOT device (such as that with BiSb in the SOT layer) has been proposed for applications in magnetic switching and sensor applications, where current flows in a CIP (current-in-plane) or CPP (current-perpendicular-to-the-plane) direction, respectively. For CPP SOT devices, the requirement for the Tl or TSM layer's bulk property is to be more insulating, to minimize shunting. However, for CIP SOT devices, the requirement for the Tl or TSM layer's bulk property is to be more conductive, for less power consumption. Disclosed herein are various embodiments covering types and amounts of dopants for the Tl or TSM layer, to decrease the bandgap of the Tl or TSM layer for CIP SOT devices, thereby increasing the bulk conductivity for lower power consumption.

Classes IPC  ?

  • H01F 10/30 - Pellicules magnétiques minces, p. ex. de structure à un domaine caractérisées par le substrat ou par les couches intermédiaires caractérisées par la composition des couches intermédiaires
  • H01F 10/32 - Multicouches couplées par échange de spin, p. ex. superréseaux à structure nanométrique
  • H10N 50/85 - Matériaux de la région active
  • G11C 11/16 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage électriques ou magnétiques particuliersÉléments d'emmagasinage correspondants utilisant des éléments magnétiques utilisant des éléments dans lesquels l'effet d'emmagasinage est basé sur l'effet de spin

15.

NITROGEN DOPED OXIDES FOR LOWER BANDGAP

      
Numéro d'application US2025010007
Numéro de publication 2025/151312
Statut Délivré - en vigueur
Date de dépôt 2025-01-01
Date de publication 2025-07-17
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Le, Quang
  • York, Brian R.
  • Chen, Andrew
  • Liu, Jinming
  • Spool, Alan
  • Le, Son T.
  • Liu, Xiaoyong
  • Gribelyuk, Michael A.
  • Takano, Hisashi
  • Guo, Xing-Cai

Abrégé

Nitrogen doping an insulating layer can lower the bandgap of a magnetic storage device. It is challenging to nitrogen dope magnesium oxide (MgO). A cation can be added to allow the magnesium to hold onto the nitrogen dopant without highly oxidizing or nitriding the cation. The resulting nitrogen doped MgXO, where X is the cation, has a lower bandgap compared to a much similar barrier layer that has neither nitrogen nor a cation thus improving thermal and electrical reliabilities. The nitrogen doped MgXO is non-stoichiometric whereas comparably, an oxynitride is stoichiometric. Example cations that may be used include aluminum, titanium, vanadium, chromium, and scandium.

Classes IPC  ?

  • G11B 5/10 - Structure ou fabrication de boîtiers ou de blindages pour têtes
  • G11B 5/73 - Couches de base
  • H01F 10/32 - Multicouches couplées par échange de spin, p. ex. superréseaux à structure nanométrique
  • H10N 50/10 - Dispositifs magnéto-résistifs
  • H10N 50/85 - Matériaux de la région active

16.

Dopants to Decrease BiSbX's and YBiPt's Bandgap for Optimal Current-In-Plane (CIP) Conductivity

      
Numéro d'application 19011136
Statut En instance
Date de dépôt 2025-01-06
Date de la première publication 2025-07-10
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Le, Quang
  • York, Brian R.
  • Liu, Xiaoyong
  • Le, Son T.
  • Gribelyuk, Michael A.
  • Takano, Hisashi

Abrégé

The present disclosure generally relates to topological semi-metal (TSM) and topological insulator (TI) based spin-orbit torque (SOT) devices and a method of forming thereof. TI or TSM-based SOT device (such as that with BiSb in the SOT layer) has been proposed for applications in magnetic switching and sensor applications, where current flows in a CIP (current-in-plane) or CPP (current-perpendicular-to-the-plane) direction, respectively. For CPP SOT devices, the requirement for the TI or TSM layer's bulk property is to be more insulating, to minimize shunting. However, for CIP SOT devices, the requirement for the TI or TSM layer's bulk property is to be more conductive, for less power consumption. Disclosed herein are various embodiments covering types and amounts of dopants for the TI or TSM layer, to decrease the bandgap of the TI or TSM layer for CIP SOT devices, thereby increasing the bulk conductivity for lower power consumption.

Classes IPC  ?

  • H10N 50/85 - Matériaux de la région active
  • G11B 5/39 - Structure ou fabrication de têtes sensibles à un flux utilisant des dispositifs magnétorésistifs
  • G11C 11/16 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage électriques ou magnétiques particuliersÉléments d'emmagasinage correspondants utilisant des éléments magnétiques utilisant des éléments dans lesquels l'effet d'emmagasinage est basé sur l'effet de spin
  • H03K 19/18 - Circuits logiques, c.-à-d. ayant au moins deux entrées agissant sur une sortieCircuits d'inversion utilisant des éléments spécifiés utilisant des dispositifs galvanomagnétiques, p. ex. des dispositifs à effet Hall
  • H10N 50/10 - Dispositifs magnéto-résistifs

17.

MAGNETIC RECORDING MEDIA WITH SACRIFICIAL LAYER AND CORRESPONDING ETCHING PROCESSES TO MINIMIZE HEAD TO MEDIA SPACING

      
Numéro d'application 19085489
Statut En instance
Date de dépôt 2025-03-20
Date de la première publication 2025-07-03
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Guo, Wei
  • Xu, Ge

Abrégé

Various apparatuses, systems, methods, and media are disclosed to provide a heat-assisted magnetic recording (HAMR) medium that includes a sacrificial layer and corresponding etching processes to minimize head to media spacing. The medium may include the sacrificial layer and a capping layer where each of the layers is etched to reduce roughness. The sacrificial layer is configured to ensure an etch rate that allows for selective etching and may be deposited on the capping layer and after etching, may remain along grain boundaries of the capping layer. The remaining portions of the sacrificial layer may form a discontinuous layer, including layer segments positioned along grain boundaries of the capping layer. The sacrificial layer may be made of non-magnetic materials different from the materials of the capping layer or materials of an overcoat layer deposited on the etched capping layer.

Classes IPC  ?

  • G11B 5/66 - Supports d'enregistrement caractérisés par l'emploi d'un matériau spécifié comportant uniquement le matériau magnétique, sans produit de liaison les supports d'enregistrement étant constitués par plusieurs couches magnétiques
  • G11B 5/00 - Enregistrement par magnétisation ou démagnétisation d'un support d'enregistrementReproduction par des moyens magnétiquesSupports d'enregistrement correspondants
  • G11B 5/73 - Couches de base
  • G11B 5/84 - Procédés ou appareils spécialement adaptés à la fabrication de supports d'enregistrement

18.

HARD DISK DRIVE DISK MEDIA CURVATURE MITIGATION

      
Numéro d'application US2024040330
Numéro de publication 2025/136461
Statut Délivré - en vigueur
Date de dépôt 2024-07-31
Date de publication 2025-06-26
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Mcnab, Robert
  • Nguyen, Daniel
  • Bianchini, John

Abrégé

A hard disk drive includes multiple disk media mounted on a spindle, where the outer diameter of each disk medium is offset from the inner diameter of the disk medium in a same direction along an axis of rotation of the spindle, and a load/unload ramp positioned, based on the offset, to align in correspondence with the outer diameters of the disk media. Thus, the curvature of irregular disk media, such as that associated with thinner and thinner disks, is mitigated by grouping similarly-characterized irregular disks together on a given spindle and compensating the ramp accordingly.

Classes IPC  ?

  • G11B 21/21 - Supports de têtesSupports des douilles pour les têtes embrochables agissant pendant que la tête est en position de travail, mais immobile, ou permettant de petits déplacements pour suivre les irrégularités de la surface du support d'enregistrement avec des dispositions pour maintenir un écartement désiré entre la tête et le support d'enregistrement, p. ex. maintien dynamique de l'écartement à l'aide d'un fluide, à l'aide d'un coulisseau
  • G11B 21/10 - Recherche de la piste ou alignement par déplacement de la tête

19.

MAGNETIC SENSOR HALF-BRIDGE BASED ON INVERSE SPIN HALL EFFECT WITH REDUCED THERMAL DRIFT

      
Numéro d'application US2024040848
Numéro de publication 2025/136464
Statut Délivré - en vigueur
Date de dépôt 2024-08-02
Date de publication 2025-06-26
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Le, Quang
  • Liu, Xiaoyong
  • Takano, Hisashi
  • York, Brian, R.

Abrégé

The present disclosure generally relates to a magnetic sensor half bridge circuit. The half bridge circuit comprises a bias source connected to a first leg and a second leg. The first leg comprises one or more first spin-orbit torque (SOT) structures connected in series, each first SOT structure comprising a first ferromagnetic (FM) layer disposed on a first SOT layer. The first SOT layer has a first end connected to ground and a second end connected to a first voltage sensor. The second leg comprises one or more second SOT structures connected in series, each second SOT structure comprising a second FM layer disposed on a second SOT layer. The second SOT layer has a first end connected to a second voltage sensor and a second end connected to a ground. The first voltage sensor is disposed adjacent to the second voltage sensor.

Classes IPC  ?

  • G01R 33/09 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant des dispositifs galvano-magnétiques des dispositifs magnéto-résistifs
  • G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
  • H01F 1/44 - Aimants ou corps magnétiques, caractérisés par les matériaux magnétiques appropriésEmploi de matériaux spécifiés pour leurs propriétés magnétiques en liquides magnétiques, p. ex. ferrofluides
  • H01F 10/08 - Pellicules magnétiques minces, p. ex. de structure à un domaine caractérisées par les couches magnétiques

20.

Non-localized Spin Valve Multi-Free-Layer Reader Hybridized with Spin Orbit Torque Layers

      
Numéro d'application 19055379
Statut En instance
Date de dépôt 2025-02-17
Date de la première publication 2025-06-12
Propriétaire
  • Western Digital Technologies, Inc. (USA)
  • INSTITUTE OF SCIENCE TOKYO (Japon)
Inventeur(s)
  • Le, Quang
  • Liu, Xiaoyong
  • York, Brian R.
  • Hwang, Cherngye
  • Le, Son T.
  • Takano, Hisashi
  • Tuo, Fan
  • Osman, Hassan
  • Pham, Nam Hai

Abrégé

The present disclosure generally relates to a magnetic recording head comprising a read head. The read head comprises a first sensor disposed at a media facing surface (MFS) comprising at least one free layer, a second sensor disposed at the MFS comprising at least one free layer, a first spin generator spaced from the first sensor and recessed from the MFS, and a second spin generator spaced from the second sensor and recessed from the MFS. The first and second spin generators each individually comprises at least one spin orbit torque (SOT) layer. The SOT layer may comprise BiSb. The first and second sensors are configured to detect a read signal using a first voltage lead and a second voltage lead. The first and second spin generators are configured to inject spin current through non-magnetic layers to the first and second sensors using a plurality of current leads.

Classes IPC  ?

  • G11B 5/39 - Structure ou fabrication de têtes sensibles à un flux utilisant des dispositifs magnétorésistifs

21.

MINIMIZING REDUNDANCY FOR STUCK BIT CODING

      
Numéro d'application 18533655
Statut En instance
Date de dépôt 2023-12-08
Date de la première publication 2025-06-12
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Djurdjevic, Ivana
  • Guyot, Cyril
  • Mateescu, Robert

Abrégé

A storage device minimizes redundancy for stuck bit codes when writing a message to a memory device. A controller generates a set of masks that are codewords and that include values that correspond to stuck bit values. The set of masks may include full length codewords or shortened codewords. When the controller receives a message including a predefined number of label bits and determines that a location in the memory device where the message is be stored includes two stuck bits, the controller encodes the message to produce a first message codeword. The controller then locates a mask from the set of masks, wherein when the mask is added to the first message codeword, any two stuck message bits are masked. The controller computes a final message codeword using the first message codeword and the mask and stores the final message codeword on the memory device.

Classes IPC  ?

  • G06F 11/10 - Détection ou correction d'erreur par introduction de redondance dans la représentation des données, p. ex. en utilisant des codes de contrôle en ajoutant des chiffres binaires ou des symboles particuliers aux données exprimées suivant un code, p. ex. contrôle de parité, exclusion des 9 ou des 11

22.

DNA STORAGE ERROR CORRECTION CODE ARCHITECTURE FOR OPTIMIZED DECODING

      
Numéro d'application US2024040022
Numéro de publication 2025/122205
Statut Délivré - en vigueur
Date de dépôt 2024-07-29
Date de publication 2025-06-12
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Bazarsky, Alexander
  • Zamir, Ran
  • Avraham, David

Abrégé

A DNA-based storage system implements a sub-code architecture for error correction capability (ECC) purposes. The sub-code architecture enables a long DNA strand to be divided into two or more short DNA strands. Each short DNA strand has its own unique parity information. Additionally, each short DNA strand is separately decodable from the other short DNA strands. The parity information associated with a particular short DNA strand is used to correct any errors that occur or are detected during the decoding process. However, if the decoding and error correction processes are not successful using the parity information associated with the particular short DNA strand, global parity information is used to decode the particular short DNA strand and correct the errors. Global parity information includes information from each short DNA strand and the parity information associated with each short DNA strand.

Classes IPC  ?

  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement
  • G06F 11/10 - Détection ou correction d'erreur par introduction de redondance dans la représentation des données, p. ex. en utilisant des codes de contrôle en ajoutant des chiffres binaires ou des symboles particuliers aux données exprimées suivant un code, p. ex. contrôle de parité, exclusion des 9 ou des 11

23.

DNA DATA STORAGE DEVICE WITH VARIABLE RELIABILITY TIERS

      
Numéro d'application US2024040250
Numéro de publication 2025/122206
Statut Délivré - en vigueur
Date de dépôt 2024-07-31
Date de publication 2025-06-12
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Avraham, David
  • Zamir, Ran
  • Bazarsky, Alexander

Abrégé

A DNA-based storage system stores DNA strands that are divided into N tiers. Due to the nature of the DNA storage channel, certain types of errors occur less frequently toward the front of a DNA strand and occur more frequently near the end of the DNA strand. As such, each tier stores data having a different level of importance when compared with other types of data stored in the different tiers. Because data stored near the front of the DNA strand has fewer errors than data stored near the end of the DNA strand, the data stored near the front of the DNA strand is decoded more quickly when compared with data near the end of the DNA strand.

Classes IPC  ?

  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement

24.

MAGNETIC RECORDING MEDIA WITH METAL-DOPED CAPPING LAYER

      
Numéro d'application 19046796
Statut En instance
Date de dépôt 2025-02-06
Date de la première publication 2025-06-05
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s) Ikeda, Yoshihiro

Abrégé

Various apparatuses, systems, methods, and media are disclosed to provide a magnetic recording medium that capping layer doped with an effective amount of metal to control grain-to-grain exchange coupling in a capping layer. A magnetic recording medium includes a substrate, a magnetic recording layer (MRL) on the substrate, and a capping layer on the MRL. The capping layer include Co and is doped with a metal (e.g., Ru or Ta) in a range from 1 atomic percent to 5 atomic percent, inclusive.

Classes IPC  ?

  • G11B 5/66 - Supports d'enregistrement caractérisés par l'emploi d'un matériau spécifié comportant uniquement le matériau magnétique, sans produit de liaison les supports d'enregistrement étant constitués par plusieurs couches magnétiques
  • G11B 5/65 - Supports d'enregistrement caractérisés par l'emploi d'un matériau spécifié comportant uniquement le matériau magnétique, sans produit de liaison caractérisé par sa composition
  • G11B 5/73 - Couches de base
  • G11B 5/84 - Procédés ou appareils spécialement adaptés à la fabrication de supports d'enregistrement

25.

MULTI-LAYER LOAD BEAM FLEXURE FOR MAGNETIC STORAGE DEVICE

      
Numéro d'application 19049145
Statut En instance
Date de dépôt 2025-02-10
Date de la première publication 2025-06-05
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Muraki, Takuma
  • Noguchi, Yoshinobu
  • Soga, Eiji
  • Tsuchida, Hiroyasu

Abrégé

A suspension assembly for a magnetic storage device. The suspension assembly includes a base plate, a load beam, and a flexure. A hinge of the load beam is configured to flex so that a distal end portion of the load beam moves relative to the base plate. The flexure includes a hinge portion and fixed portions adjacent the hinge portion. Each one of the fixed portions of the flexure includes a first layer and a second layer. The first layer is interposed between the second layer and the load beam. The hinge portion of the flexure includes the second layer but does not include the first layer. A thickness of the second layer of the hinge portion of the flexure is less than a thickness of the second layers of the fixed portions of the flexure.

Classes IPC  ?

  • G11B 5/48 - Disposition ou montage des têtes par rapport aux supports d'enregistrement

26.

GENERATING AND USING A STATE TRANSITION MATRIX FOR DECODING DATA IN A DNA-BASED STORAGE SYSTEM

      
Numéro d'application US2024040011
Numéro de publication 2025/116990
Statut Délivré - en vigueur
Date de dépôt 2024-07-29
Date de publication 2025-06-05
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Zamir, Ran
  • Avraham, David
  • Bazarsky, Alexander

Abrégé

A state transition matrix for a data storage system indicates a reliability of data that was read or decoded from a data storage channel. The state transition matrix includes a probability of reading each state of a nucleotide base in an identified storage material when that nucleotide base was initially programmed in a particular state. The state transition matrix is generated by identifying a storage material with the most copies in the data storage system. During a sequencing process, the identified storage material is decoded, corrected and compared against the storage material that was originally synthesized. This information is used to determine the probability values for the state transition matrix. The state transition matrix is provided to an error correction system of the data storage system, which uses the probability information when determining whether decoded data of other storage materials should be corrected.

Classes IPC  ?

  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement

27.

STORAGE SYSTEMS FOR LARGE LANGUAGE MODEL FINE-TUNING

      
Numéro d'application US2024039899
Numéro de publication 2025/106135
Statut Délivré - en vigueur
Date de dépôt 2024-07-26
Date de publication 2025-05-22
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Navon, Ariel
  • Bazarsky, Alexander
  • Sharon, Eran

Abrégé

Data is received from an application, and it is determined whether the received data is to be used for fine-tuning a Large Language Model (LLM). The received data is stored in a primary storage or in a secondary storage based at least in part on whether the received data is to be used for fine-tuning the LLM. The secondary storage is configured to store data that is less frequently accessed than data stored in the primary storage. In response to determining that the received data is to be used for fine-tuning the LLM, the received data is stored in the secondary storage. In one aspect, a query for information is received that is associated with particular data stored in the secondary storage and the query is input into the LLM to provide the information without accessing the particular data stored.

Classes IPC  ?

  • G06F 16/2455 - Exécution des requêtes
  • G06F 16/242 - Formulation des requêtes
  • G06F 16/248 - Présentation des résultats de requêtes
  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement
  • G06N 3/096 - Apprentissage par transfert

28.

Stuck bits encoding and decoding on a storage device

      
Numéro d'application 18389155
Numéro de brevet 12362029
Statut Délivré - en vigueur
Date de dépôt 2023-11-13
Date de la première publication 2025-05-15
Date d'octroi 2025-07-15
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Mateescu, Robert
  • Guyot, Cyril
  • Djurdjevic, Ivana

Abrégé

A storage device processes storage-free stuck bits information when writing and reading stored on the memory device. A controller encodes the data with cyclic error-correcting codes to generate a codeword and determines that a location in the memory device where codeword is be stored includes a stuck bit. Rather than storing the stuck bits information, when storing the codeword, the controller generates an encoding mask, adds the encoding mask to the codeword to generate encoded data, and stores the encoded data on the memory device. When reading the encoded data, the controller generates a list of decoding masks including the encoding mask, goes through the lists and adds a decoding mask to the encoded data. The controller decodes the encoded data with the encoding mask from the list and returns the data.

Classes IPC  ?

  • G11C 29/42 - Dispositifs de vérification de réponse utilisant des codes correcteurs d'erreurs [ECC] ou un contrôle de parité

29.

DEEP NEURAL NETWORK DEVICE BASED ON DUAL SPIN ORBIT TORQUE (SOT) DEVICES

      
Numéro d'application US2024033622
Numéro de publication 2025/101231
Statut Délivré - en vigueur
Date de dépôt 2024-06-12
Date de publication 2025-05-15
Propriétaire
  • WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
  • TOKYO INSTITUTE OF TECHNOLOGY (Japon)
Inventeur(s)
  • Le, Quang
  • Liu, Xiaoyong
  • York, Brian R.
  • Takano, Hisashi
  • Pham, Nam Hai

Abrégé

The present disclosure generally relates to a deep neural network (DNN) device utilizing spin orbital-spin orbital (SO-SO) devices. The SO-SO devices each includes two SOT layers, a first spin orbit torque (SOT1 ) layer, a second spin orbit torque (SOT2) layer, and a ferromagnetic layer disposed between the SOT1 and SOT2 layer. Each SO-SO device further comprises three terminals, one per each SOT layer, for in plane current flow to or from the respective SOT layer, and one for perpendicular current flow through multiple layers, or the overall stack, of the SO-SO device. The SO-SO device thus efficiently provides spin-to-charge and charge-to-spin mechanisms in the same device, and can be flexibility configured to perform various functions of a neural node of a DNN. These functions include storing programmed weights, multiplying inputs and weights and summing such multiplication results, and performing an activation function to determine a neural node output.

Classes IPC  ?

  • G06N 3/02 - Réseaux neuronaux
  • G06N 3/06 - Réalisation physique, c.-à-d. mise en œuvre matérielle de réseaux neuronaux, de neurones ou de parties de neurone
  • G11C 11/16 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage électriques ou magnétiques particuliersÉléments d'emmagasinage correspondants utilisant des éléments magnétiques utilisant des éléments dans lesquels l'effet d'emmagasinage est basé sur l'effet de spin
  • G01C 11/18 - Restitution des photos par comparaison de plusieurs photos de la même zone les photos étant placées dans la même position relative qu'au moment où elles ont été prises avec projection optique dans un plan commun impliquant des moyens d'exploration

30.

Data storage device executing host access commands in a manner to optimize performance and reduce energy costs

      
Numéro d'application 18410679
Numéro de brevet 12300283
Statut Délivré - en vigueur
Date de dépôt 2024-01-11
Date de la première publication 2025-05-13
Date d'octroi 2025-05-13
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Cauterucio, Stephen
  • Cheng, Abigail
  • Larson, Andrew

Abrégé

A data storage device executes access commands received from a host by a recording head actuated over a magnetic storage medium. A target command is selected from queued host access commands. A free command is selected that can be executed during a time required for a seek from the recording head location to a target command location. A seek energy difference between the energy required to seek from the recording head location to a free command location to the target command location, and to seek from the recording head location directly to the target command location is determined. The device seeks to and executes the free and target commands if the seek energy difference is less than a threshold, and seeks directly to the target command if the seek energy difference is greater than the threshold.

Classes IPC  ?

  • G11B 5/55 - Changement, sélection ou acquisition de la piste par déplacement de la tête

31.

METHODS AND SYSTEMS FOR NUCLEIC ACID SEQUENCING USING NANOPORES

      
Numéro d'application US2024039072
Numéro de publication 2025/096029
Statut Délivré - en vigueur
Date de dépôt 2024-07-23
Date de publication 2025-05-08
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Kinney, Justin P.
  • Bedau, Daniel

Abrégé

A method of performing nucleic acid sequencing may comprise using a disintegrator situated in a fluidic channel of a sequencing device to cleave off a portion of a nucleic acid molecule in the fluidic channel; applying an electrostatic force to divert the portion of the nucleic acid molecule through a nanopore; detecting an ionic current through the nanopore; and determining an identity of at least one nucleotide of the portion of the nucleic acid molecule based at least in part on the ionic current. A system for sequencing nucleic acids may comprise an array comprising a plurality of sequencing devices, each comprising a fluidic channel, a disintegrator embedded in the fluidic channel, and a nanopore coupled to an exit end of the fluidic channel; and detection circuitry coupled to the array and configured to detect ionic currents through the nanopores.

Classes IPC  ?

  • C12Q 1/6874 - Méthodes de séquençage faisant intervenir des réseaux d’acides nucléiques, p. ex. séquençage par hybridation [SBH]
  • C12Q 1/6816 - Tests d’hybridation caractérisés par les moyens de détection
  • C12Q 1/6869 - Méthodes de séquençage
  • G01N 33/487 - Analyse physique de matériau biologique de matériau biologique liquide

32.

NUCLEIC ACID SEQUENCING USING NANOPORES

      
Numéro d'application US2024035679
Numéro de publication 2025/096023
Statut Délivré - en vigueur
Date de dépôt 2024-06-26
Date de publication 2025-05-08
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Kinney, Justin P.
  • Bedau, Daniel

Abrégé

Disclosed herein are devices, systems, and methods for sequencing nucleic acids using a nanopore. A nucleic acid molecule is fragmented into smaller portions (e.g., individual nucleotides), which are then routed through a nanopore for detection. A device for single-nucleotide sequencing may include a fluidic channel, a disintegrator configured to cleave off portions of a nucleic acid in the fluidic channel, a nanopore coupled to the fluidic channel, and first and second electrodes situated to apply an electrostatic force on the portions of the nucleic acid to divert them out of the fluidic channel and through the nanopore.

Classes IPC  ?

  • C12Q 1/6869 - Méthodes de séquençage
  • G01N 33/487 - Analyse physique de matériau biologique de matériau biologique liquide

33.

NUCLEIC ACID SEQUENCING USING NANOPORES

      
Numéro d'application 18499024
Statut En instance
Date de dépôt 2023-10-31
Date de la première publication 2025-05-01
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Kinney, Justin P.
  • Bedau, Daniel

Abrégé

Disclosed herein are devices, systems, and methods for sequencing nucleic acids using a nanopore. A nucleic acid molecule is fragmented into smaller portions (e.g., individual nucleotides), which are then routed through a nanopore for detection. A device for single-nucleotide sequencing may include a fluidic channel, a disintegrator configured to cleave off portions of a nucleic acid in the fluidic channel, a nanopore coupled to the fluidic channel, and first and second electrodes situated to apply an electrostatic force on the portions of the nucleic acid to divert them out of the fluidic channel and through the nanopore.

Classes IPC  ?

  • G01N 33/487 - Analyse physique de matériau biologique de matériau biologique liquide

34.

METHODS AND SYSTEMS FOR NUCLEIC ACID SEQUENCING USING NANOPORES

      
Numéro d'application 18499069
Statut En instance
Date de dépôt 2023-10-31
Date de la première publication 2025-05-01
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Kinney, Justin P.
  • Bedau, Daniel

Abrégé

A method of performing nucleic acid sequencing may comprise using a disintegrator situated in a fluidic channel of a sequencing device to cleave off a portion of a nucleic acid molecule in the fluidic channel; applying an electrostatic force to divert the portion of the nucleic acid molecule through a nanopore; detecting an ionic current through the nanopore; and determining an identity of at least one nucleotide of the portion of the nucleic acid molecule based at least in part on the ionic current. A system for sequencing nucleic acids may comprise an array comprising a plurality of sequencing devices, each comprising a fluidic channel, a disintegrator embedded in the fluidic channel, and a nanopore coupled to an exit end of the fluidic channel; and detection circuitry coupled to the array and configured to detect ionic currents through the nanopores.

Classes IPC  ?

  • G01N 33/487 - Analyse physique de matériau biologique de matériau biologique liquide

35.

Dynamic DC Field Compensator for MAMR Recording Head

      
Numéro d'application 18986106
Statut En instance
Date de dépôt 2024-12-18
Date de la première publication 2025-04-24
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Goncharov, Alexander
  • Asif Bashir, Muhammad
  • Ding, Yunfei

Abrégé

The present disclosure generally relates to a magnetic recording system comprising a magnetic recording head. The magnetic recording head comprises a main pole, a shield, and a spintronic device disposed between the main pole and the shield. The spintronic device comprises a field generation layer (FGL) spaced a distance of about 2 nm to about 3 nm from the main pole, a first spacer layer disposed on the FGL, a spin torque layer (STL) disposed on the first spacer layer, a second spacer layer disposed on the STL, and a negative polarization layer (NPL) disposed between the second spacer layer and the shield. The spintronic device has a length of about 17 nm to about 21. During operation, the STL has a magnetization precession of about 16 degrees to about 170 degrees, and the FGL has a magnetization precession of about 60 degrees to about 70 degrees.

Classes IPC  ?

  • G11B 5/31 - Structure ou fabrication des têtes, p. ex. têtes à variation d'induction utilisant des films minces
  • G11B 5/00 - Enregistrement par magnétisation ou démagnétisation d'un support d'enregistrementReproduction par des moyens magnétiquesSupports d'enregistrement correspondants

36.

SELECTABLE LOW POWER MODE FOR STORAGE DEVICES

      
Numéro d'application US2024031403
Numéro de publication 2025/085116
Statut Délivré - en vigueur
Date de dépôt 2024-05-29
Date de publication 2025-04-24
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Muthiah, Ramanathan
  • Sijher, Taninder Singh
  • Toranagallu, Anil Kumar

Abrégé

An external data storage device, without a battery, provides a user-selectable low power mode. The external data storage device includes storage media for storing data and a data port for receiving power and transmitting data to a host device. The external storage data device includes control circuitry configured to negotiate delivery of a first amount of power from the host device in response to connecting the external data storage device to the host device, receive the first amount of power from the host device, receive a selection, via an input device, of a reduced power mode from a user, and reduce power consumption from the host device to a second amount of power lower than the first amount of power in response to receiving the selection of the reduced power mode.

Classes IPC  ?

  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement
  • H04W 4/80 - Services utilisant la communication de courte portée, p. ex. la communication en champ proche, l'identification par radiofréquence ou la communication à faible consommation d’énergie
  • G06V 40/13 - Capteurs à cet effet
  • G06F 12/0802 - Adressage d’un niveau de mémoire dans lequel l’accès aux données ou aux blocs de données désirés nécessite des moyens d’adressage associatif, p. ex. mémoires cache

37.

MULTI-TIER ERROR CORRECTION CODES FOR DNA DATA STORAGE

      
Numéro d'application US2024030989
Numéro de publication 2025/058684
Statut Délivré - en vigueur
Date de dépôt 2024-05-24
Date de publication 2025-03-20
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Oboukhov, Iouri
  • Galbraith, Richard Leo
  • Ravindran, Niranjay

Abrégé

Example systems and methods for using a multi-tier error correction code distributed among oligos for DNA data storage are described. A data unit may be encoded as a set of codewords where each codeword is distributed as symbols on different oligos. The codewords may include a set of first tier codewords that include CRC and ECC redundancy data and one or more additional tiers of codewords that include permuted data and corresponding ECC redundancy data. Decoding may include a sequence of decoding iterations between the first tier of codewords and additional tiers of codewords.

Classes IPC  ?

  • G06F 11/10 - Détection ou correction d'erreur par introduction de redondance dans la représentation des données, p. ex. en utilisant des codes de contrôle en ajoutant des chiffres binaires ou des symboles particuliers aux données exprimées suivant un code, p. ex. contrôle de parité, exclusion des 9 ou des 11
  • G16B 50/00 - TIC pour la programmation d’outils ou de systèmes de bases de données spécialement adaptées à la bio-informatique

38.

Dual FGL and Dual SPL Spintronic Device To Reduce Perpendicular Field At Writing Location

      
Numéro d'application 18960779
Statut En instance
Date de dépôt 2024-11-26
Date de la première publication 2025-03-13
Propriétaire Western Digital Technoloies, Inc. (USA)
Inventeur(s)
  • Bashir, Muhammad Asif
  • Goncharov, Alexander
  • Bai, Zhigang
  • Shiimoto, Masato
  • Ding, Yunfei

Abrégé

The present disclosure is generally related to a magnetic recording device comprising a magnetic recording head. The magnetic recording head comprises a main pole, a shield, and a spintronic device disposed between the main pole and the shield. The spintronic device comprises two field generation layers (FGLs), two spin polarization layers (SPLs), and two spin kill layers. The spintronic device further comprises one or more optional thin negative beta material layers, such as layers comprising FeCr, disposed in contact with at least one of the spin kill layers. When electric current is applied, the spin kill layers and optional negative beta material layers eliminate or reduce any spin torque between the FGLs and the SPLs.

Classes IPC  ?

  • G11B 5/31 - Structure ou fabrication des têtes, p. ex. têtes à variation d'induction utilisant des films minces
  • G11B 5/00 - Enregistrement par magnétisation ou démagnétisation d'un support d'enregistrementReproduction par des moyens magnétiquesSupports d'enregistrement correspondants
  • G11B 5/127 - Structure ou fabrication des têtes, p. ex. têtes à variation d'induction
  • G11B 5/235 - Emploi de matériaux spécifiés pour remplir l'entrefer

39.

Spintronic Device Comprising Dual FGL and Dual SPL To Reduce Perpendicular Field At Writing Location

      
Numéro d'application 18959957
Statut En instance
Date de dépôt 2024-11-26
Date de la première publication 2025-03-13
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Asif Bashir, Muhammad
  • Goncharov, Alexander
  • Bai, Zhigang
  • Shiimoto, Masato
  • Ding, Yunfei

Abrégé

The present disclosure is generally related to a magnetic recording device comprising a magnetic recording head. The magnetic recording head comprises a main pole, a hot seed layer, and a spintronic device disposed between the main pole and the hot seed layer. The spintronic device comprises two field generation layers (FGLs), two spin polarization layers (SPLs), and two spin kill layers. The second SPL of the spintronic device drives the second FGL. The spintronic device further comprises one or more optional thin negative beta material layers, such as layers comprising FeCr, disposed in contact with at least one of the spin kill layers. When electric current is applied, the spin kill layers and optional negative beta material layers eliminate or reduce any spin torque between the FGLs and the SPLs.

Classes IPC  ?

  • G11B 5/31 - Structure ou fabrication des têtes, p. ex. têtes à variation d'induction utilisant des films minces
  • G11B 5/00 - Enregistrement par magnétisation ou démagnétisation d'un support d'enregistrementReproduction par des moyens magnétiquesSupports d'enregistrement correspondants
  • G11B 5/127 - Structure ou fabrication des têtes, p. ex. têtes à variation d'induction
  • G11B 5/235 - Emploi de matériaux spécifiés pour remplir l'entrefer

40.

DATA STORAGE DEVICE WITH FLEXIBLE LOGICAL TRACKS AND RADIUS-INDEPENDENT DATA RATE

      
Numéro d'application 18952399
Statut En instance
Date de dépôt 2024-11-19
Date de la première publication 2025-03-06
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s) Hall, David R.

Abrégé

Various illustrative aspects are directed to a data storage device, comprising one or more disks; at least one actuator mechanism configured to position at least a first head proximate to a first disk surface and a second head proximate to a second disk surface; and one or more processing devices. The one or more processing devices are configured to: assign logical tracks to physical tracks of the disk surfaces such that a respective logical track comprises: at least a portion of sectors of a primary physical track, the primary physical track being on the first disk surface; and at least a portion of sectors of a donor physical track, the donor physical track being on the second disk surface. The one or more processing devices are configured to perform, using the first head and the second head, a data access operation with at least one of the logical tracks.

Classes IPC  ?

  • G11B 5/55 - Changement, sélection ou acquisition de la piste par déplacement de la tête
  • G11B 5/09 - Enregistrement numérique
  • G11B 5/48 - Disposition ou montage des têtes par rapport aux supports d'enregistrement

41.

In-Memory Deep Neural Network Device Using Spin Orbit Torque (SOT) With Multi-State Weight

      
Numéro d'application 18954415
Statut En instance
Date de dépôt 2024-11-20
Date de la première publication 2025-03-06
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Le, Quang
  • Liu, Xiaoyong
  • Xu, Lei
  • York, Brian R.
  • Hwang, Cherngye
  • Takano, Hisashi

Abrégé

The present disclosure is generally related to a deep neural network (DNN) device comprising a plurality of spin-orbit torque (SOT) cells. The DNN device comprises an array comprising n rows and m columns of nodes, each row of nodes coupled to one of n first conductive lines, each column of nodes coupled to one of m second conductive lines, each node of the n rows and m columns of nodes comprising a plurality of SOT cells, each SOT cell comprising: at least one SOT layer, at least one ferromagnetic (FM) layer, and a controller configured to store at least one corresponding weight of an n×m array of weights of a neural network in each of the SOT cell. The FM layer may comprise two or more domains, two or more elliptical arms, or two or more states.

Classes IPC  ?

  • G06N 3/04 - Architecture, p. ex. topologie d'interconnexion

42.

CALIBRATION OF RESOURCE SERVER POWER ALLOCATIONS WITHIN A DATA STORAGE DEVICE USING CONFORMAL PREDICTIONS

      
Numéro d'application 18941572
Statut En instance
Date de dépôt 2024-11-08
Date de la première publication 2025-02-27
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Hassan, Yoseph
  • Navon, Ariel
  • Sharon, Eran
  • Benisty, Shay

Abrégé

Methods and apparatus for power management in data storage devices are provided wherein conformal prediction is employed to determine correction terms for applying to power-per-processing event (P/PE) values. One such data storage device includes a non-volatile memory (NVM), a set of hardware processing engines, and a power sensor to detect a total power consumption of the set of hardware processing engines. A processor is configured to determine a P/PE value for each of the set of processing engines based on total power consumption measurements using a least squares procedure. A conformalization procedure is applied to sequences of P/PE values to calibrate the P/PE values by determining correction terms for applying to the P/PE values to provide guaranteed power prediction intervals. Delivery of power to the processing engines is then controlled based on the corrected P/PE event values in accordance with a power budget. On-line and off-line examples are provided.

Classes IPC  ?

  • G06F 1/26 - Alimentation en énergie électrique, p. ex. régulation à cet effet

43.

ENERGY-PER-PROCESSING EVENT ESTIMATES BASED ON TOTAL POWER CONSUMPTION MEASUREMENTS WITHIN A DATA STORAGE DEVICE

      
Numéro d'application 18941513
Statut En instance
Date de dépôt 2024-11-08
Date de la première publication 2025-02-27
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Hassan, Yoseph
  • Navon, Ariel
  • Sharon, Eran
  • Benisty, Shay

Abrégé

Methods and apparatus for energy management in data storage devices are provided. One such data storage device (DSD) includes a non-volatile memory (NVM), a set of hardware processing engines, and a power sensor to detect a total power consumption of the set of hardware processing engines. A processor is configured to determine an energy-per-processing event value for each of the set of processing engines based on total power consumption measurements and processing event duration values, then control energy delivery to the processing engines based on the energy-per-processing event values in accordance with an energy budget. In some examples, the DSD employs a least-squares procedure to estimate power-per-processing event values so the values can be determined without needing to measure individual power consumption of the processing engines. The power-per-processing event values are converted to energy-per-processing event values based on corresponding processing event durations. A recursive least-squares update procedure is also described.

Classes IPC  ?

  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement

44.

STAGED HIGH-DENSITY BACKPLANE FOR ELECTRONIC MODULES

      
Numéro d'application US2024030894
Numéro de publication 2025/042456
Statut Délivré - en vigueur
Date de dépôt 2024-05-23
Date de publication 2025-02-27
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Nayak, Shailesh R.
  • Jayaprakash, Arjun
  • Moolanmoozha, Joe Paul
  • Muniswamy, Nandan Sarjapur

Abrégé

An electronics backplane assembly includes respective first and second floating backplane connector assemblies each having a backplane connector coupled to a corresponding backplane plate movably coupled with a chassis wall, and a pair of stepped stoppers coupled to the chassis wall and positioned on each side of each backplane plate. Each stepped stopper pair includes a step at a different distance from the chassis wall and positioned to provide a reactive force to the corresponding backplane plate for incrementally engaging respective backplane connectors of an electronics module with a corresponding floating backplane connector. Each floating backplane connector assembly may include a pair of guide stoppers having a stopper structure at respective positions, coupled to the chassis wall and protruding through holes in each backplane plate, where each backplane plate is positioned for connector engagement between the step structure of each stepped stopper and the stopper structure of each guide stopper.

Classes IPC  ?

  • H05K 7/14 - Montage de la structure de support dans l'enveloppe, sur cadre ou sur bâti
  • H01R 13/629 - Moyens additionnels pour faciliter l'engagement ou la séparation des pièces de couplage, p. ex. moyens pour aligner ou guider, leviers, pression de gaz

45.

Miscellaneous Design

      
Numéro d'application 019147151
Statut Enregistrée
Date de dépôt 2025-02-24
Date d'enregistrement 2025-08-03
Propriétaire Western Digital Technologies, Inc. (USA)
Classes de Nice  ?
  • 06 - Métaux communs et minerais; objets en métal
  • 09 - Appareils et instruments scientifiques et électriques
  • 14 - Métaux précieux et leurs alliages; bijouterie; horlogerie
  • 16 - Papier, carton et produits en ces matières
  • 17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
  • 18 - Cuir et imitations du cuir
  • 24 - Tissus et produits textiles
  • 25 - Vêtements; chaussures; chapellerie
  • 28 - Jeux, jouets, articles de sport
  • 35 - Publicité; Affaires commerciales
  • 37 - Services de construction; extraction minière; installation et réparation
  • 38 - Services de télécommunications
  • 41 - Éducation, divertissements, activités sportives et culturelles
  • 42 - Services scientifiques, technologiques et industriels, recherche et conception

Produits et services

Personal identification tags of metal; nonluminous and non-mechanical metal signs; trophies of common metal; metal hardware, namely, general use wall and ceiling mounts for audio, video or computer equipment. Backup drives for computers; blank flash memory cards; blank usb flash drives; cases for data storage devices; computer disk drives; computer hardware and software for data storage; computer hardware; computer memories; computer memory devices; computer network hardware; computer peripherals; computer software to enable retrieval of data; computer software; data cables; data compression software; downloadable mobile applications; electronic circuit cards; electronic memories; encryption software; flash card adapters; flash card readers; flash memory card; flash memory drives; flash memory; hard disk drives; integrated circuit chips; magnetic data carriers, recording discs; memory card cases; memory cards; memory cards for video game machines; portable flash memory devices; portable music players; power cables; secure digital (SD) memory cards; semiconductor memory devices; software for operating and administering data storage devices; solid state drives; usb flash drives; wafers for integrated circuits; scientific apparatus and instruments; calibrating rings; diagnostic apparatus, not for medical purposes; measuring apparatus. Watches, clocks, jewelry, trophies; pins being jewelry; Key chains comprised of split rings with decorative fobs or trinkets; Key rings comprised of split rings with decorative fobs or trinkets; medals and medalions. Cardboard boxes; catalogues; computer hardware reference manuals; computer manuals; instruction sheets; instructional and teaching materials (other than apparatus); manuals for computer software; manuals for instructional purposes; Packaging materials of paper; paper boxes; paper for wrapping and packaging; paper labels; plastic bags for packing; plastic film for packaging; printed booklets; printed brochures; printed informational flyers; printed informational sheets; printed publications; printed leaflets; printed manuals; printed matter; printed newsletters; printed pamphlets; signboards of paper or cardboard; writing instruments; pens [office requisites]; pencils; notebooks; stationery; stickers [stationery]; paper; copying paper [stationery]. Articles made from rubber, namely bags, pouches and carrying cases for computer storage devices. Articles made from leather and imitations of leather, namely, bags, pouches and carrying cases for computer storage devices, tablets, smartphones, data storage devices, and media players; backpacks, carry all bags and travel bags; umbrellas; plastic key chain tags, plastic luggage tags. Textiles and textile goods; towels. Clothing, jackets, shirts, sweaters, sweatshirts, t-shirts, tops, pants, footwear, hats, and headwear. Video and handheld game consoles; plush toys; stress relief exercise toys; golf balls, tees, and markers; bean bag throwing toys, bean bag toy balls; puzzles; toy figures. Advertising services; computerized file management; providing business information; retail services in relation to cases for data storage devices; retail services in relation to computer hardware; retail services in relation to computer peripherals; retail services in relation to computer software; retail services in relation to portable media players; updating and maintenance of data in computer databases. Installation, maintenance and repair of computer hardware, computer peripherals, computer storage devices, computer networks, data storage centers, and media players; upgrading and updating of computer hardware and peripherals; office machines and equipment installation, maintenance and repair; consulting services in the field of physical maintenance of computer hardware, computer peripherals, computer storage devices, computer networks and data storage centers; technical support services, namely, trouble shooting in the nature of the repair of computer hardware; installation of computer systems; technical support services, namely, providing technical advice related to the installation of computer hardware and peripherals. Telecommunication services; electronic transmission of data and documents via computer networks; data transmission for others; computer data transmission services; digital transmission of data. Provision of online training; Organisation of webinars; Arranging and conducting of workshops and seminars; Provision of educational information; Providing electronic publications [not downloadable]; Publishing of newsletters; Publication of manuals; Providing on-line videos, not downloadable. Scientific and technological services; cloud computing; computer programming; computer software consultancy; data migration services; design and development of computer hardware; design and development of computer software; design, development and updating services of software for data hard disk drives, solid-state drives and computer storage devices; design, maintenance, development and updating of computer firmware and software; electronic data storage; electronic storage services for archiving databases, images and other electronic data; information technology [IT] consultancy; off-site data backup; providing information on computer technology and programming; providing technical advice relating to computer hardware and software; providing technical information in the fields of computer hardware, computer data storage, information storage, computer networking and networking interfaces, disk drives, computer disk drives, and electronic memories; recovery of computer data; research services; technical consultancy services relating to information technology; technical support services in the field of data storage, data management and backup of electronic data, on-premises and in the cloud; technical support services, namely, migration of datacenter, server and database applications; troubleshooting of computer software problems.

46.

Miscellaneous Design

      
Numéro de série 99051827
Statut En instance
Date de dépôt 2025-02-21
Propriétaire Western Digital Technologies, Inc. ()
Classes de Nice  ?
  • 25 - Vêtements; chaussures; chapellerie
  • 28 - Jeux, jouets, articles de sport
  • 35 - Publicité; Affaires commerciales
  • 06 - Métaux communs et minerais; objets en métal
  • 38 - Services de télécommunications
  • 09 - Appareils et instruments scientifiques et électriques
  • 14 - Métaux précieux et leurs alliages; bijouterie; horlogerie
  • 16 - Papier, carton et produits en ces matières
  • 18 - Cuir et imitations du cuir
  • 20 - Meubles et produits décoratifs
  • 21 - Ustensiles, récipients, matériaux pour le ménage; verre; porcelaine; faience
  • 37 - Services de construction; extraction minière; installation et réparation
  • 41 - Éducation, divertissements, activités sportives et culturelles
  • 42 - Services scientifiques, technologiques et industriels, recherche et conception

Produits et services

Clothing, namely, tops, bottoms, footwear, and headwear; Clothing, namely, jackets, shirts, sweaters, sweatshirts, t-shirts, and hats; Online retail store services provided via a global computer network featuring computer hardware, computer storage devices, namely, blank flash drives, computer software, computer peripherals, media players and protective cases for hard drives, tablet computers, smartphones, and data storage devices, namely, external computer hard drives; charitable services, namely, organizing and conducting volunteer programs and community service projects; advertising services; business management; business administration services; providing office functions; professional business consultancy and business organization consultancy; business efficiency expert services; providing business information in the field of compilation and systemization of information into computer databases; compilation and systemization of information into computer databases; computerized file management; updating and maintenance of data in computer databases Video game consoles and handheld game consoles; plush toys; stress relief exercise toys; golf balls, golf tees, and golf tee markers; bean bags; puzzles; toy figures Online retail store services provided via a global computer network featuring computer hardware, computer storage devices, namely, blank flash drives, computer software, computer peripherals, media players and protective cases for hard drives, tablet computers, smartphones, and data storage devices, namely, external computer hard drives; charitable services, namely, organizing and conducting volunteer programs and community service projects; advertising services; business management; business administration services; providing office functions; professional business consultancy and business organization consultancy; business efficiency expert services; providing business information in the field of compilation and systemization of information into computer databases; compilation and systemization of information into computer databases; computerized file management; updating and maintenance of data in computer databases Personal identification tags of metal; non-luminous and non-mechanical metal signs; trophies of common metal; metal hardware, namely, general use wall and ceiling mounts for audio, video or computer equipment Electronic, electric, and digital transmission of voice, data, images, graphics, video, signals, and messages; Computer aided transmission of information and images; Encrypted electronic transmission and delivery of recovered data; Transmission of sound, video and information from mobile phones featuring live and recorded materials; Wireless communications services, namely, transmission of graphics to mobile telephones Blank flash memory cards; blank usb flash drives; computer disk drives and computer memories for network attached storage devices for file sharing and cloud backup; computer disk drives sold blank or with data encryption, utility, and management software; computer hardware and downloadable computer software for managing data storage; computer hardware; computer memories; computer memory devices, namely, nonvolatile memory devices in the nature of computer memory hardware, solid state drives and embedded memory storage drives, all sold blank or with data encryption, utility, and management software; computer peripherals; disk drives for computers; downloadable computer software for accessing video and data stored on distributed computer storage devices; downloadable computer software for computer system analysis and optimization; downloadable computer software for encrypting data; downloadable computer software for managing data and data storage, for cloud-based network storage, and for use in accelerating the performance and scalability of computing platforms; downloadable computer software for the synchronization, back-up, and encryption and decryption of digital files; downloadable software for mobile devices for computer system analysis and optimization; electronic memories sold blank or with data encryption, utility, and management software; electronic memories; flash card adapters; flash card readers; hard disk drives sold blank or with data encryption, utility, and management software; hard disk drives; memory cards sold blank or with data encryption, utility, and management software; semiconductor memory devices; solid state drives sold blank or with data encryption, utility, and management software; solid state drives; Carrying cases for computer hardware; Cases for mobile phones; Protective covers and cases for smartphones, tablet computers, and data storage devices, namely, solid state drives and blank usb flash drives; Protective covers and cases for comp Watches, clocks, jewelry, precious metal trophies, pins being jewelry; Key chains comprised of split rings with decorative fobs or trinkets; Key rings comprised of split rings with decorative fobs or trinkets; medals; medallions Cardboard boxes and packaging in the nature of packaging materials made of recycled paper, cardboard and signboards of paper or cardboard; paper notebooks and paper stationery; printed instructional and teaching materials relating to data storage; printed computer hardware reference manuals; printed computer manuals for computer hardware, computer data storage, information storage, computer networking and networking interfaces, disk drives, computer disk drives, and electronic memories; printed instruction sheets in the field of computer hardware, computer data storage, information storage, computer networking and networking interfaces, disk drives, computer disk drives, and electronic memories; stickers; writing utensils, namely, pencils and pens; general purpose plastic bags; electrostatic paper in the form of electrostatic discharge bags; paper labels; plastic bags for packing; plastic film for packaging; printed booklets in the field of computer hardware, computer data storage, information storage, computer networking and networking interfaces, disk drives, computer disk drives, and electronic memories; printed brochures about computer hardware, computer data storage, information storage, computer networking and networking interfaces, disk drives, computer disk drives, and electronic memories; printed informational flyers featuring computer hardware, computer data storage, information storage, computer networking and networking interfaces, disk drives, computer disk drives, and electronic memories; printed informational sheets about computer hardware, computer data storage, information storage, computer networking and networking interfaces, disk drives, computer disk drives, and electronic memories; printed leaflets about computer hardware, computer data storage, information storage, computer networking and networking interfaces, disk drives, computer disk drives, and electronic memories; printed manuals in the field of computer hardware, computer data storage Articles made from leather and imitations of leather, namely, leather cases and imitation leather cases, leather and imitation leather bags, pouches of leather, pouches made from imitation leather, and backpacks; carry all bags and travel bags; umbrellas; plastic luggage tags Plastic key chain tags Mugs; water bottles sold empty; insulating sleeve holders for beverage cans and bottles; sports bottles sold empty Installation of computer networking hardware; installation of hardware for computer systems; installation, maintenance, and repair of computer hardware; maintenance of data storage devices, hard drives, disk drives, solid state drives, media players and computer peripherals Educational services, namely, conducting workshops, classes, seminars, webinars, conferences, and training services provided online from a computer network in the field of digital data storage, computer programming, the future of computing, data information systems, and data storage technology; providing online non-downloadable publications and videos in the nature of user manuals and technical white papers in the field of digital data storage, computer programming, the future of computing, data information systems, and data storage technology; providing educational information, namely, providing information relating to education services; providing online not downloadable publications in the nature of newsletters, user manuals and technical white papers in the field of digital data storage, computer programming, the future of computing, data information systems, and data storage technology; providing on-line videos, non-downloadable in the field of digital data storage, computer programming, the future of computing, data information systems, and data storage technology Computer services in the field of cloud computing; computer programming; computer software consultancy; data migration services; design and development of computer hardware; design and development of computer software; design, development and updating services for data hard disk drives and solid state drives; design, development and updating services for computer storage devices, namely, storage subsystems for storage and backup of electronic data either locally or via a telecommunications network, computer memories, and blank flash drives; design, maintenance, development and updating of computer firmware and software; electronic data storage; electronic storage services for archiving databases, images and other electronic data; information technology [IT] consulting services; off-site data backup; providing information relating to computer technology and programming via a website; providing technical advice relating to the operation and repair of computer hardware and software; providing technical information in the fields of computer hardware, computer data storage, information storage, computer networking and networking interfaces, disk drives, computer disk drives, and electronic memories; recovery of computer data; research and design in the field of computer hardware, computer software and software integration, computer chip hardware, microprocessors, semiconductor devices, architecture instruction for computer hardware and microprocessor, and processor and memory architectures; scientific and technological services in the nature of system analysis and optimization of non-volatile flash memory devices, data centers, hyper-scale computer systems and cloud computing system analysis and optimization and research and design relating thereto; technical consultancy services relating to information technology; technical support services, namely, troubleshooting of data storage, data management and backup of electronic data, on-premises and in the cloud; technical su

47.

Highly Textured 001 BiSb And Materials for Making Same

      
Numéro d'application 18933330
Statut En instance
Date de dépôt 2024-10-31
Date de la première publication 2025-02-13
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Le, Quang
  • York, Brian R.
  • Hwang, Cherngye
  • Liu, Xiaoyong
  • Gribelyuk, Michael A.
  • Xu, Xiaoyu
  • Simmons, Randy G.
  • Ho, Kuok San
  • Takano, Hisashi

Abrégé

The present disclosure generally relates to spin-orbit torque (SOT) device comprising a first bismuth antimony (BiSb) layer having a (001) orientation. The SOT device comprises a first BiSb layer having a (001) orientation and a second BiSb layer having a (012) orientation. The first BiSb layer having a (001) orientation is formed by depositing an amorphous material selected from the group consisting of: B, Al, Si, SiN, Mg, Ti, Sc, V, Cr, Mn, Y, Zr, Nb, AlN, C, Ge, and combinations thereof, on a substrate, exposing the amorphous material to form an amorphous oxide surface on the amorphous material, and depositing the first BiSb layer on the amorphous oxide surface. By utilizing a first BiSb layer having a (001) orientation and a second BiSb having a (012) orientation, the signal through the SOT device is balanced and optimized to match through both the first and second BiSb layers.

Classes IPC  ?

  • H01F 10/32 - Multicouches couplées par échange de spin, p. ex. superréseaux à structure nanométrique
  • C23C 8/12 - Oxydation au moyen de l'ozone ou de l'oxygène
  • C30B 29/52 - Alliages
  • G11B 5/00 - Enregistrement par magnétisation ou démagnétisation d'un support d'enregistrementReproduction par des moyens magnétiquesSupports d'enregistrement correspondants
  • G11B 5/39 - Structure ou fabrication de têtes sensibles à un flux utilisant des dispositifs magnétorésistifs
  • H10B 61/00 - Dispositifs de mémoire magnétique, p. ex. dispositifs RAM magnéto-résistifs [MRAM]
  • H10N 50/85 - Matériaux de la région active
  • H10N 52/00 - Dispositifs à effet Hall
  • H10N 52/01 - Fabrication ou traitement
  • H10N 52/80 - Détails de structure

48.

EDGEROVER

      
Numéro de série 99027065
Statut En instance
Date de dépôt 2025-02-03
Propriétaire Western Digital Technologies, Inc. ()
Classes de Nice  ?
  • 09 - Appareils et instruments scientifiques et électriques
  • 42 - Services scientifiques, technologiques et industriels, recherche et conception

Produits et services

Downloadable and recorded computer software and mobile applications for aggregation of data and electronic media from distributed sources and datasets; downloadable and recorded computer software and mobile applications for the transmission and display of data and electronic media featuring collaboration and information sharing tools; downloadable and recorded computer software and mobile applications for the synchronization, back-up, and encryption and decryption of digital files; downloadable and recorded computer software and mobile applications for accessing media and data stored on distributed computer storage devices; downloadable and recorded computer software and mobile applications for encrypting data; downloadable and recorded computer software and mobile applications for managing data and data storage, for cloud-based network storage, and for use in accelerating the performance and scalability of computing platforms; none of the aforesaid relating to vehicles Providing non-downloadable computer software and mobile applications for aggregation of data and electronic media from distributed sources and datasets; Providing non-downloadable computer software and mobile applications for the transmission and display of data and electronic media featuring collaboration and information sharing tools; Providing nondownloadable computer software and mobile applications for the synchronization, back-up, and encryption and decryption of digital files; Providing non-downloadable computer software and mobile applications for accessing media and data stored on distributed computer storage devices; Providing non-downloadable computer software and mobile applications for encrypting data; Providing nondownloadable computer software and mobile applications for managing data and data storage, for cloud-based network storage, and for use in accelerating the performance and scalability of computing platforms; none of the aforesaid relating to vehicles

49.

Topological Insulator Based Spin Torque Oscillator Reader

      
Numéro d'application 18893605
Statut En instance
Date de dépôt 2024-09-23
Date de la première publication 2025-01-09
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Liu, Xiaoyong
  • Li, Zhanjie
  • Le, Quang
  • York, Brian R.
  • Hwang, Cherngye
  • Ho, Kuok San
  • Takano, Hisashi

Abrégé

The present disclosure generally relates to a bismuth antimony (BiSb) based STO (spin torque oscillator) sensor. The STO sensor comprises a SOT device and a magnetic tunnel junction (MTJ) structure. By utilizing a BiSb layer within the SOT device, a larger spin Hall angle (SHA) can be achieved, thereby improving the efficiency and reliability of the STO sensor.

Classes IPC  ?

  • G11B 5/39 - Structure ou fabrication de têtes sensibles à un flux utilisant des dispositifs magnétorésistifs
  • G11B 5/11 - Blindage de la tête contre les champs électriques ou magnétiques

50.

NUCLEIC ACID SEQUENCING BY SYNTHESIS USING MAGNETIC SENSOR ARRAYS

      
Numéro d'application 18888896
Statut En instance
Date de dépôt 2024-09-18
Date de la première publication 2025-01-09
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Astier, Yann
  • Braganca, Patrick
  • Topolancik, Juraj

Abrégé

Methods of detecting molecules using an apparatus comprising a plurality of magnetic sensors are disclosed. A method may include binding a first molecule to a proximal wall of a fluid chamber of the apparatus, and adding, to the fluid chamber, a magnetically-labeled molecule comprising a cleavable magnetic label, wherein the magnetically-labeled molecule is configured to bind to or be incorporated by the first molecule. The method may use at least one address line and at least one selector element of the apparatus to detect a characteristic of at least a portion of the plurality of magnetic sensors, wherein the characteristic indicates whether the magnetically-labeled molecule has bound to or been incorporated by the first molecule.

Classes IPC  ?

  • B01L 3/00 - Récipients ou ustensiles pour laboratoires, p. ex. verrerie de laboratoireCompte-gouttes
  • C12Q 1/6869 - Méthodes de séquençage
  • G01N 27/08 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant l'impédance en recherchant la résistance d'un liquide qui coule sans interruption
  • G01N 27/74 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant des variables magnétiques des fluides
  • G01N 33/58 - Analyse chimique de matériau biologique, p. ex. de sang ou d'urineTest par des méthodes faisant intervenir la formation de liaisons biospécifiques par ligandsTest immunologique faisant intervenir des substances marquées

51.

Doping Process To Refine Grain Size For Smoother BiSb Film Surface

      
Numéro d'application 18889747
Statut En instance
Date de dépôt 2024-09-19
Date de la première publication 2025-01-09
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Le, Quang
  • Hwang, Cherngye
  • York, Brian R.
  • Simmons, Randy G.
  • Liu, Xiaoyong
  • Ho, Kuok San
  • Takano, Hisashi
  • Gribelyuk, Michael A.
  • Xu, Xiaoyu

Abrégé

The present disclosure generally relates to spin-orbit torque (SOT) magnetic tunnel junction (MTJ) devices comprising a doped bismuth antimony (BiSbE) layer having a (012) orientation. The devices may include magnetic write heads, read heads, or MRAM devices. The dopant in the BiSbE layer enhances the (012) orientation. The BiSbE layer may be formed on a texturing layer to ensure the (012) orientation, and a migration barrier may be formed over the BiSbE layer to ensure the antimony does not migrate through the structure and contaminate other layers. A buffer layer and interlayer may also be present. The buffer layer and the interlayer may each independently be a single layer of material or a multilayer of material. The buffer layer and the interlayer inhibit antimony (Sb) migration within the doped BiSbE layer and enhance uniformity of the doped BiSbE layer while further promoting the (012) orientation of the doped BiSbE layer.

Classes IPC  ?

  • G11C 11/16 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage électriques ou magnétiques particuliersÉléments d'emmagasinage correspondants utilisant des éléments magnétiques utilisant des éléments dans lesquels l'effet d'emmagasinage est basé sur l'effet de spin
  • H10B 61/00 - Dispositifs de mémoire magnétique, p. ex. dispositifs RAM magnéto-résistifs [MRAM]
  • H10N 50/10 - Dispositifs magnéto-résistifs
  • H10N 50/85 - Matériaux de la région active
  • H10N 52/00 - Dispositifs à effet Hall
  • H10N 52/01 - Fabrication ou traitement
  • H10N 52/80 - Détails de structure

52.

Dual Free Layer TMR Reader With Shaped Rear Bias and Methods of Forming Thereof

      
Numéro d'application 18890207
Statut En instance
Date de dépôt 2024-09-19
Date de la première publication 2025-01-09
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Mao, Ming
  • Wang, Yung-Hung
  • Hu, Chih-Ching
  • Chien, Chen-Jung
  • Corona, Carlos
  • Yuan, Hongping
  • Jiang, Ming
  • Baião De Albuquerque, Goncalo Marcos

Abrégé

The present disclosure generally relates to a dual free layer (DFL) read head and methods of forming thereof. In one embodiment, a method of forming a DFL read head comprises depositing a DFL sensor, defining a stripe height of the DFL sensor, depositing a rear bias (RB) adjacent to the DFL sensor, defining a track width of the DFL sensor and the RB, and depositing synthetic antiferromagnetic (SAF) soft bias (SB) side shields adjacent to the DFL sensor. In another embodiment, a method of forming a DFL read head comprises depositing a DFL sensor, defining a track width of the DFL sensor, depositing SAF SB side shields adjacent to the DFL sensor, defining a stripe height of the DFL sensor and the SAF SB side shield, depositing a RB adjacent to the DFL sensor and the SAF SB side shield, and defining a track width of the RB.

Classes IPC  ?

  • G11B 5/11 - Blindage de la tête contre les champs électriques ou magnétiques
  • G11B 5/265 - Structure ou fabrication d'une tête ayant plusieurs entrefers pour l'effacement, l'enregistrement ou la reproduction sur la même piste

53.

STORAGE POWER REDUCTION IN BATTERY-OPERATED DEVICES

      
Numéro d'application US2024012247
Numéro de publication 2025/005999
Statut Délivré - en vigueur
Date de dépôt 2024-01-19
Date de publication 2025-01-02
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Sharma, Amit
  • Agarwal, Dinesh Kumar
  • Venugopal, Abhinandan

Abrégé

Techniques are provided for optimizing the power consumption of a data storage device included in a battery-operated device. The battery-operated device (e.g., portable devices like wearable devices, smartwatches, and mobile phones) can access certain data stored on the data storage device more frequently when the device operates on battery power as compared to when the device does not operate on battery power. Techniques are provided for identifying and classifying data into different classifications, for example, power sensitive data and non-power sensitive data. Then the device can optimize the battery power consumption of the data storage device by storing or relocating data stored at the data storage device based on the classification of the data.

Classes IPC  ?

  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement
  • G06F 12/06 - Adressage d'un bloc physique de transfert, p. ex. par adresse de base, adressage de modules, extension de l'espace d'adresse, spécialisation de mémoire

54.

PHASE-COHERENT IN-LINE VCSEL ARRAY WITH SLIDER TRAILING MOUNT FOR HAMR

      
Numéro d'application US2024012257
Numéro de publication 2025/006000
Statut Délivré - en vigueur
Date de dépôt 2024-01-19
Date de publication 2025-01-02
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s) Stipe, Barry C.

Abrégé

The present disclosure relates to pretreating a magnetic recording head assembly for magnetic media drive. The magnetic recording head assembly comprises a slider having a media facing surface (MFS), a top surface disposed opposite the MFS, a trailing edge surface disposed adjacent to the top surface, and an optical grating disposed on the trailing edge surface. A vertical cavity surface emitting laser (VCSEL) device is mounted to the trailing edge surface of the slider. The VCSEL device is aligned with the optical grating. A magnetic recording head comprising a waveguide and a near field transducer (NFT) coupled to the waveguide is disposed on the trailing edge surface of the slider. The VCSEL device is capable of emitting a plurality of lasers that are phase coherent on to the optical grating. The optical grating is capable of directing the emitted lasers about 90 degrees to the waveguide.

Classes IPC  ?

  • G11B 13/08 - Enregistrement utilisant simultanément ou sélectivement des procédés ou des moyens entrant dans des groupes principaux différentsSupports d'enregistrement correspondantsReproduction simultanée ou sélective correspondante utilisant des interactions ou des moyens de transduction en champ proche et au moins un autre procédé ou moyen pour l'enregistrement ou la reproduction
  • G11B 5/48 - Disposition ou montage des têtes par rapport aux supports d'enregistrement
  • G11B 5/00 - Enregistrement par magnétisation ou démagnétisation d'un support d'enregistrementReproduction par des moyens magnétiquesSupports d'enregistrement correspondants

55.

NEAR-FIELD TRANSDUCER FOR HEAT ASSISTED MAGNETIC RECORDING COMPRISING OF THERMALLY STABLE MATERIAL LAYER

      
Numéro d'application US2024012457
Numéro de publication 2025/006002
Statut Délivré - en vigueur
Date de dépôt 2024-01-22
Date de publication 2025-01-02
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Matsumoto, Takuya
  • Balamane, Mr. Hamid

Abrégé

The present disclosure generally relates to a magnetic recording head for a magnetic media drive. The magnetic recording head comprises a main pole, a waveguide disposed adjacent to the main pole, a near field transducer (NFT) coupled between the main pole and the waveguide at a media facing surface (MFS), a thermal shunt disposed on the NFT, the thermal shunt being recessed from the MFS, and a stable material disposed on the NFT at the MFS. In some embodiments, the stable material is wedge-shaped or triangular-shaped. In another embodiment, the stable material comprises a first portion and a second portion, where the first and second portions may each by linear, or where the first portion is triangular-shaped and the second portion is square-shaped. The stable material may be in contact with the thermal shunt, or spaced from the thermal shunt.

Classes IPC  ?

  • G11B 13/08 - Enregistrement utilisant simultanément ou sélectivement des procédés ou des moyens entrant dans des groupes principaux différentsSupports d'enregistrement correspondantsReproduction simultanée ou sélective correspondante utilisant des interactions ou des moyens de transduction en champ proche et au moins un autre procédé ou moyen pour l'enregistrement ou la reproduction
  • G11B 5/73 - Couches de base
  • G11B 5/31 - Structure ou fabrication des têtes, p. ex. têtes à variation d'induction utilisant des films minces
  • G11B 5/00 - Enregistrement par magnétisation ou démagnétisation d'un support d'enregistrementReproduction par des moyens magnétiquesSupports d'enregistrement correspondants

56.

Magnetic Control of Molecule Translocation Speed Through a Nanopore

      
Numéro d'application 18364506
Statut En instance
Date de dépôt 2023-08-03
Date de la première publication 2024-12-26
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Kinney, Justin P.
  • Bedau, Daniel

Abrégé

A system for controlling a translocation speed of a molecule through a nanopore may include a fluid chamber containing a solution with a magnetic susceptibility that is different from the magnetic susceptibility of the molecule, a nanopore situated in the fluid chamber, and at least one magnetic component configured to create a magnetic field gradient within the solution to control the translocation speed of a molecule through the nanopore. A system for controlling a translocation speed of a molecule through a nanopore may include a nanopore at least one magnetic component situated to create a magnetic field that causes the molecule to experience a rotational torque as it passes through the nanopore.

Classes IPC  ?

57.

MAGNETIC CONTROL OF MOLECULE TRANSLOCATION SPEED THROUGH A NANOPORE

      
Numéro d'application US2024012179
Numéro de publication 2024/263212
Statut Délivré - en vigueur
Date de dépôt 2024-01-19
Date de publication 2024-12-26
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Kinney, Justin P.
  • Bedau, Daniel

Abrégé

A system for controlling a translocation speed of a molecule through a nanopore may include a fluid chamber containing a solution with a magnetic susceptibility that is different from the magnetic susceptibility of the molecule, a nanopore situated in the fluid chamber, and at least one magnetic component configured to create a magnetic field gradient within the solution to control the translocation speed of a molecule through the nanopore. A system for controlling a translocation speed of a molecule through a nanopore may include a nanopore at least one magnetic component situated to create a magnetic field that causes the molecule to experience a rotational torque as it passes through the nanopore.

Classes IPC  ?

  • G01N 33/487 - Analyse physique de matériau biologique de matériau biologique liquide

58.

Automatic XOR data programming by memory die for uncorrectable page failure recovery

      
Numéro d'application 18362197
Numéro de brevet 12287708
Statut Délivré - en vigueur
Date de dépôt 2023-07-31
Date de la première publication 2024-12-19
Date d'octroi 2025-04-29
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Thalaimalai Vanaraj, Anantharaj
  • Thoppa, Sai Gautham
  • Marenahally Krishna, Dharmaraju

Abrégé

Embodiments of the present technology provide non-volatile memory devices comprising memory dies that natively generate “exclusive OR (XOR) data pages” that can be used to recover data pages corrupted by UECC errors. Through memory die native-XOR data page generation, embodiments can recover data pages corrupted by UECC errors more efficiently, more rapidly, and with fewer resources than potential alternative technologies.

Classes IPC  ?

  • G06F 11/00 - Détection d'erreursCorrection d'erreursContrôle de fonctionnement
  • G06F 11/14 - Détection ou correction d'erreur dans les données par redondance dans les opérations, p. ex. en utilisant différentes séquences d'opérations aboutissant au même résultat

59.

SPIN ORBITAL SQUARED (SO-SO) LOGIC

      
Numéro d'application US2024033621
Numéro de publication 2024/258973
Statut Délivré - en vigueur
Date de dépôt 2024-06-12
Date de publication 2024-12-19
Propriétaire
  • WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
  • TOKYO INSTITUTE OF TECHNOLOGY (Japon)
Inventeur(s)
  • Le, Quang
  • Liu, Xiaoyong
  • York, Brian R.
  • Hwang, Cherngye
  • Takano, Hisashi
  • Pham, Nam Hai

Abrégé

The present disclosure generally relate to an integrated circuit utilizing spin orbital-spin orbital (SO-SO) logic. The integrated circuit comprises a plurality of SO-SO logic cells, where each SO-SO logic cell comprises a first spin orbit torque (SOT1 ) layer, a second spin orbit torque (SOT2) layer, and a ferromagnetic layer disposed between the SOT1 and SOT2 layer. Each SO-SO logic cell is configured for: a first current path that is in plane to a plane of the SOT1 layer, and a second current path that is perpendicular to a plane of the SOT2 layer, the second current path being configured to extend into the ferromagnetic layer. The integrated circuit further comprises a common voltage source connected to each SOT device, and one or more interconnects disposed between adjacent SOT devices of the plurality of SOT devices, the one or more interconnects connecting the adjacent SOT devices together.

Classes IPC  ?

  • H01F 10/32 - Multicouches couplées par échange de spin, p. ex. superréseaux à structure nanométrique
  • H10N 52/00 - Dispositifs à effet Hall
  • G11C 11/16 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage électriques ou magnétiques particuliersÉléments d'emmagasinage correspondants utilisant des éléments magnétiques utilisant des éléments dans lesquels l'effet d'emmagasinage est basé sur l'effet de spin

60.

HIGHLY TEXTURED BUFFER LAYER TO GROW YBIPT (110) FOR SPINTRONIC APPLICATIONS

      
Numéro d'application US2024033620
Numéro de publication 2024/258972
Statut Délivré - en vigueur
Date de dépôt 2024-06-12
Date de publication 2024-12-19
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Le, Quang
  • York, Brian R.
  • Banh, Sharon Swee Ling
  • Osman, Hassan
  • Takano, Hisashi

Abrégé

3232233333 (100), YPt (110), NiFeGeN, NiAIN, NiAl, NiFeGe, NiAIGe, or HfN, and a ferromagnetic layer.

Classes IPC  ?

  • H10N 50/00 - Dispositifs galvanomagnétiques
  • H10N 50/20 - Dispositifs à courant commandé à polarisation de spin
  • H01F 10/32 - Multicouches couplées par échange de spin, p. ex. superréseaux à structure nanométrique

61.

ASSIST CORES FOR SPOT SIZE CONVERTER FOR HEAT ASSISTED MAGNETIC RECORDING

      
Numéro d'application US2024011519
Numéro de publication 2024/253714
Statut Délivré - en vigueur
Date de dépôt 2024-01-13
Date de publication 2024-12-12
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Shi, Norman Nan
  • Matsumoto, Takuya
  • Stipe, Barry C.

Abrégé

Spot size converter (SSC) in a HAMR magnetic recording head assembly have a plurality of split assist core structures. Each split assist core structure includes multiple assist cores and a main waveguide. Each split core may also include one or more side waveguides such that the main waveguide is sandwiched between the side waveguides and top and bottom assist cores. Adjacent split assist core structures, may share assist cores. The split assist core structures reduce light source power utilized to write data to magnetic media.

Classes IPC  ?

  • G11B 13/04 - Enregistrement utilisant simultanément ou sélectivement des procédés ou des moyens entrant dans des groupes principaux différentsSupports d'enregistrement correspondantsReproduction simultanée ou sélective correspondante par procédé magnétique et procédé optique
  • G11B 5/48 - Disposition ou montage des têtes par rapport aux supports d'enregistrement
  • G11B 5/31 - Structure ou fabrication des têtes, p. ex. têtes à variation d'induction utilisant des films minces

62.

FILM AND METHOD FOR BISBX (012) TEXTURE FOR SOT DEVICES

      
Numéro d'application US2024011521
Numéro de publication 2024/253715
Statut Délivré - en vigueur
Date de dépôt 2024-01-13
Date de publication 2024-12-12
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Le, Quang
  • York, Brian R.
  • Hwang, Cherngye
  • Liu, Xiaoyong
  • Gribelyuk, Michael A.
  • Le, Son T.
  • Takano, Mr. Hisashi

Abrégé

The present disclosure generally relates to spin-orbit torque (SOT) device comprising a bismuth antimony (BiSb) layer. The SOT device comprises a seed layer and a BiSb layer having a (012) orientation. The seed layer comprises at least one of an amorphous/nanocrystalline material with a nearest neighbor x-ray diffraction peak with a d-spacing in the range of about 2.02 Å to about 2.20 Å; a polycrystalline material having a (111) orientation and an a-axis of about 3.53 Å to about 3.81 Å; and a polycrystalline material having a cubic (100) or tetragonal (001) orientation and an a-axis of about 4.1 Å to about 4.7 Å. When the seed layer comprises an amorphous material or a polycrystalline material having a (111), the BiSb layer is doped, and the seed layer has a lower a/c ratio than when the seed layer comprises polycrystalline material having a cubic (100) or tetragonal (001) orientation.

Classes IPC  ?

  • H10N 50/10 - Dispositifs magnéto-résistifs
  • H10N 50/85 - Matériaux de la région active
  • H10N 50/01 - Fabrication ou traitement
  • H10B 61/00 - Dispositifs de mémoire magnétique, p. ex. dispositifs RAM magnéto-résistifs [MRAM]
  • G11C 11/16 - Mémoires numériques caractérisées par l'utilisation d'éléments d'emmagasinage électriques ou magnétiques particuliersÉléments d'emmagasinage correspondants utilisant des éléments magnétiques utilisant des éléments dans lesquels l'effet d'emmagasinage est basé sur l'effet de spin
  • G11B 5/48 - Disposition ou montage des têtes par rapport aux supports d'enregistrement

63.

DISAGGREGATED MEMORY MANAGEMENT

      
Numéro d'application US2024010727
Numéro de publication 2024/242724
Statut Délivré - en vigueur
Date de dépôt 2024-01-08
Date de publication 2024-11-28
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Radi, Marjan
  • Vucinic, Dejan

Abrégé

A server includes at least one local memory and communicates with one or more network devices that provide an external shared memory. A kernel space of the server is used to monitor memory usage by different applications executed by the server. A memory kernel module adjusts usage of the at least one local memory and the external shared memory by the different applications based at least in part on the monitored memory usage. In another aspect, a memory access profiling server receives memory information and application usage information added to packets sent between servers and one or more memory devices. The memory access profiling server analyzes the memory information and application usage information to determine memory placement information that is sent to at least one server to adjust usage of the external shared memory.

Classes IPC  ?

  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement

64.

SUB-BLOCK MODE (SBM) PRE-CHARGE OPERATION SEQUENCES

      
Numéro d'application 18356712
Statut En instance
Date de dépôt 2023-07-21
Date de la première publication 2024-11-21
Propriétaire WesternDigital Technologies, Inc. (USA)
Inventeur(s)
  • S., Gopu
  • Panakkal, Binoy Jose

Abrégé

Embodiments of the disclosed technology relate to the operation of memory devices, and more particularly to sub-block mode (SBM) pre-charge operation sequences. One example embodiment provides a novel logic design of the control circuitry of a memory device using comments/instructions for the control circuitry. By virtue of the features of the disclosed technology, the control circuitry can effect pre-charging of an inner or middle vertical sub-block of a NAND string in a memory array. In some examples the NAND string has at least three vertical sub-blocks of non-volatile memory cells.

Classes IPC  ?

  • G11C 16/08 - Circuits d'adressageDécodeursCircuits de commande de lignes de mots
  • G11C 16/04 - Mémoires mortes programmables effaçables programmables électriquement utilisant des transistors à seuil variable, p. ex. FAMOS
  • G11C 16/24 - Circuits de commande de lignes de bits

65.

THREE-DIMENSIONAL MEMORY DEVICE WITH LAYER CONTACT VIA STRUCTURES LOCATED IN A MEMORY ARRAY REGION AND METHODS OF FORMING THE SAME

      
Numéro d'application 18233759
Statut En instance
Date de dépôt 2023-08-14
Date de la première publication 2024-11-14
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Iwai, Takaaki
  • Totoki, Yuji
  • Izumi, Keisuke

Abrégé

A three-dimensional memory device includes an alternating stack of insulating layers and electrically conductive layers, an array of memory openings vertically extending through the alternating stack, memory-opening-free areas located in the array of the memory openings in a plan view, an array of memory opening fill structures located in the array of memory openings, and layer contact assemblies located within the memory-opening-free areas in the plan view. Each of the memory opening fill structures includes a respective vertical semiconductor channel and respective memory elements located at levels of the electrically conductive layers. Each of the layer contact assemblies includes a respective layer contact via structure contacting a respective one of the electrically conductive layers, and a respective insulating spacer that laterally surrounds the respective layer contact via structure.

Classes IPC  ?

  • H10B 43/27 - Dispositifs EEPROM avec des isolants de grille à piégeage de charge caractérisés par les agencements tridimensionnels, p. ex. avec des cellules à des niveaux différents de hauteur la région de source et la région de drain étant à différents niveaux, p. ex. avec des canaux inclinés les canaux comprenant des parties verticales, p. ex. des canaux en forme de U
  • H01L 23/00 - Détails de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide
  • H01L 25/00 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide
  • H01L 25/065 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant tous d'un type prévu dans une seule des sous-classes , , , , ou , p. ex. ensembles de diodes redresseuses les dispositifs n'ayant pas de conteneurs séparés les dispositifs étant d'un type prévu dans le groupe
  • H01L 25/18 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant de types prévus dans plusieurs différents groupes principaux de la même sous-classe , , , , ou
  • H10B 41/27 - Dispositifs de mémoire morte reprogrammable électriquement [EEPROM] comprenant des grilles flottantes caractérisés par les agencements tridimensionnels, p. ex. avec des cellules à des niveaux différents de hauteur la région de source et la région de drain étant à différents niveaux, p. ex. avec des canaux inclinés les canaux comprenant des parties verticales, p. ex. des canaux en forme de U
  • H10B 41/35 - Dispositifs de mémoire morte reprogrammable électriquement [EEPROM] comprenant des grilles flottantes caractérisés par la région noyau de mémoire avec un transistor de sélection de cellules, p. ex. NON-ET
  • H10B 43/35 - Dispositifs EEPROM avec des isolants de grille à piégeage de charge caractérisés par la région noyau de mémoire avec transistors de sélection de cellules, p. ex. NON-ET
  • H10B 80/00 - Ensembles de plusieurs dispositifs comprenant au moins un dispositif de mémoire couvert par la présente sous-classe

66.

SHOCK ABSORBER ASSEMBLY FOR A PRINTED CIRCUIT BOARD

      
Numéro d'application 18357759
Statut En instance
Date de dépôt 2023-07-24
Date de la première publication 2024-11-14
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Kim, Myungjin
  • Chan, Fu Xing
  • Lau, Chun Sean
  • Fong, Lihwa

Abrégé

A shock absorber for a printed circuit board (PCB) includes a first portion and a second portion. The first portion is positioned on a first side of the PCB at or near a connector that extends from the PCB. The second portion is positioned on a second side of the PCB, opposite the first portion. The first and second portions prevent the PCB from moving when the PCB is coupled to a host device. As the PCB is subjected to various movements, strains and stresses, the shock absorber prevents the PCB from cracking or breaking, especially at or near the connector, which is susceptible to cracking and breaking.

Classes IPC  ?

  • H05K 1/02 - Circuits imprimés Détails
  • H05K 1/18 - Circuits imprimés associés structurellement à des composants électriques non imprimés

67.

DATA STORAGE DEVICE AND METHOD FOR USING A DYNAMIC FLOATING FLASH REGION TO SECURE A FIRMWARE UPDATE

      
Numéro d'application US2024010596
Numéro de publication 2024/232954
Statut Délivré - en vigueur
Date de dépôt 2024-01-06
Date de publication 2024-11-14
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Jayachandran, Anusuya
  • Veluswamy, Senthil Kumar

Abrégé

A data storage device and method are provided for using a dynamic floating flash region to secure a firmware update. In one embodiment, a data storage device is provided comprising a first non-volatile memory, a second non-volatile memory, and a controller. The controller is configured to communicate with the first and second non-volatile memories and further configured to: determine addresses in the second non-volatile memory to store portions of a firmware update, wherein the addresses are determined on-the-fly as opposed to being predetermined; and store the portion of the firmware update in the addresses in the second non-volatile memory. Other embodiments are provided.

Classes IPC  ?

  • G06F 8/65 - Mises à jour
  • G06F 8/71 - Gestion de versions Gestion de configuration
  • G06F 21/57 - Certification ou préservation de plates-formes informatiques fiables, p. ex. démarrages ou arrêts sécurisés, suivis de version, contrôles de logiciel système, mises à jour sécurisées ou évaluation de vulnérabilité
  • G06F 21/78 - Protection de composants spécifiques internes ou périphériques, où la protection d'un composant mène à la protection de tout le calculateur pour assurer la sécurité du stockage de données
  • G06F 21/62 - Protection de l’accès à des données via une plate-forme, p. ex. par clés ou règles de contrôle de l’accès
  • G06F 13/42 - Protocole de transfert pour bus, p. ex. liaisonSynchronisation
  • G06F 12/02 - Adressage ou affectationRéadressage

68.

STORAGE DEVICE CARRIER AND LATCHING MECHANISM

      
Numéro d'application 18225652
Statut En instance
Date de dépôt 2023-07-24
Date de la première publication 2024-11-07
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Patterson, Scott R.
  • Altermatt, Andrew
  • Wilke, Jeffrey D.

Abrégé

A device carrier mechanism configured for attachment to an electronic device such as a hard disk drive includes a pair of rotatable handles interlocked at a common first pivot at a proximal end of each handle and a respective second pivot at a distal end, a pair of pin mechanisms each coupled at the second pivot of a respective handle and having a protruding latch pin, and a frame with which each pin mechanism is translatably coupled. Such a linkage system operates as an over-center mechanism, in a device handling state responsive to an upward handling force and with the latch pins in a retracted position within the frame, a neutral state with the latch pins in an extended position extending external to the frame, and a locked over-center state with the latch pins clamped in the extended position for locking into a data storage system.

Classes IPC  ?

  • H05K 7/14 - Montage de la structure de support dans l'enveloppe, sur cadre ou sur bâti
  • G11B 33/02 - ÉbénisterieBoîtiersBâtisDisposition des appareils dans ou sur ceux-ci

69.

USE OF COMMON HEAD SLIDER FOR DIFFERENT RPM HARD DISK DRIVES

      
Numéro d'application 18226217
Statut En instance
Date de dépôt 2023-07-25
Date de la première publication 2024-11-07
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Liu, Yanning
  • Sun, Biao

Abrégé

A method of manufacturing hard disk drives (HDDs) includes assembling a first HDD including a first slider having a first air bearing surface (ABS) configuration, configuring the first HDD to rotate its disk media at a first revolutions-per-minute (RPM), and sealing the first HDD with a first internal pressure level. Continuing, the method includes assembling a second HDD including a second head slider having the same first ABS configuration, configuring the second HDD to rotate its disk media at a second RPM that is lower than the first RPM, and sealing the second HDD with a second internal pressure level that is higher than the first pressure level. Thus, in the context of using a common slider among different RPM drives, a higher internal pressure for the lower RPM drive can compensate for loss in fly height that might otherwise occur due to the lower operational RPM.

Classes IPC  ?

  • G11B 5/60 - Maintien dynamique de l'écartement entre têtes et supports d'enregistrement à l'aide d'un fluide
  • G11B 5/48 - Disposition ou montage des têtes par rapport aux supports d'enregistrement

70.

THREE-DIMENSIONAL MEMORY DEVICE CONTAINING PERIPHERAL CIRCUIT WITH FIN AND PLANAR FIELD EFFECT TRANSISTORS AND METHOD OF MAKING THEREOF

      
Numéro d'application 18361550
Statut En instance
Date de dépôt 2023-07-28
Date de la première publication 2024-11-07
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC., (USA)
Inventeur(s)
  • Mayuzumi, Satoru
  • Narayanan, Sudarshan
  • Dunga, Mohan

Abrégé

A semiconductor structure includes a logic die containing a word line switching circuit containing a fin field effect transistor having at least one semiconductor fin, and a planar field effect transistor, and a memory die containing a three-dimensional memory device bonded to the logic die.

Classes IPC  ?

  • H01L 23/528 - Configuration de la structure d'interconnexion
  • G11C 16/04 - Mémoires mortes programmables effaçables programmables électriquement utilisant des transistors à seuil variable, p. ex. FAMOS
  • H01L 23/522 - Dispositions pour conduire le courant électrique à l'intérieur du dispositif pendant son fonctionnement, d'un composant à un autre comprenant des interconnexions externes formées d'une structure multicouche de couches conductrices et isolantes inséparables du corps semi-conducteur sur lequel elles ont été déposées
  • H01L 29/66 - Types de dispositifs semi-conducteurs
  • H01L 29/78 - Transistors à effet de champ l'effet de champ étant produit par une porte isolée
  • H10B 41/10 - Dispositifs de mémoire morte reprogrammable électriquement [EEPROM] comprenant des grilles flottantes caractérisés par la configuration vue du dessus
  • H10B 41/27 - Dispositifs de mémoire morte reprogrammable électriquement [EEPROM] comprenant des grilles flottantes caractérisés par les agencements tridimensionnels, p. ex. avec des cellules à des niveaux différents de hauteur la région de source et la région de drain étant à différents niveaux, p. ex. avec des canaux inclinés les canaux comprenant des parties verticales, p. ex. des canaux en forme de U
  • H10B 41/35 - Dispositifs de mémoire morte reprogrammable électriquement [EEPROM] comprenant des grilles flottantes caractérisés par la région noyau de mémoire avec un transistor de sélection de cellules, p. ex. NON-ET
  • H10B 41/41 - Dispositifs de mémoire morte reprogrammable électriquement [EEPROM] comprenant des grilles flottantes caractérisés par la région de circuit périphérique de régions de mémoire comprenant un transistor de sélection de cellules, p. ex. NON-ET
  • H10B 43/10 - Dispositifs EEPROM avec des isolants de grille à piégeage de charge caractérisés par la configuration vue du dessus
  • H10B 43/27 - Dispositifs EEPROM avec des isolants de grille à piégeage de charge caractérisés par les agencements tridimensionnels, p. ex. avec des cellules à des niveaux différents de hauteur la région de source et la région de drain étant à différents niveaux, p. ex. avec des canaux inclinés les canaux comprenant des parties verticales, p. ex. des canaux en forme de U
  • H10B 43/35 - Dispositifs EEPROM avec des isolants de grille à piégeage de charge caractérisés par la région noyau de mémoire avec transistors de sélection de cellules, p. ex. NON-ET
  • H10B 43/40 - Dispositifs EEPROM avec des isolants de grille à piégeage de charge caractérisés par la région de circuit périphérique

71.

CROSS-POINT MAGNETORESISTIVE MEMORY ARRAY CONTAINING CARBON-BASED LAYER AND METHOD OF MAKING THE SAME

      
Numéro d'application 18363542
Statut En instance
Date de dépôt 2023-08-01
Date de la première publication 2024-11-07
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC., (USA)
Inventeur(s)
  • Lille, Jeffrey
  • Katine, Jordan
  • Santos, Tiffany

Abrégé

A device structure includes first electrically conductive lines that are laterally spaced apart from each other, second electrically conductive lines that are vertically spaced apart from the first electrically conductive lines and are laterally spaced apart from each other, a two-dimensional array of magnetoresistive random access memory (MRAM) pillars located between the first electrically conductive lines and the second electrically conductive lines, and each of the MRAM pillars includes a respective reference layer, a respective nonmagnetic tunnel barrier layer, and a respective free layer, and a two-dimensional array of carbon-based layers contacting surfaces of the first electrically conductive lines and surfaces of the two-dimensional array of MRAM pillars.

Classes IPC  ?

  • H10B 61/00 - Dispositifs de mémoire magnétique, p. ex. dispositifs RAM magnéto-résistifs [MRAM]

72.

THREE-DIMENSIONAL MEMORY DEVICE WITH THROUGH-STACK CONTACT VIA STRUCTURES AND METHOD OF MAKING THE SAME

      
Numéro d'application 18455988
Statut En instance
Date de dépôt 2023-08-25
Date de la première publication 2024-11-07
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC., (USA)
Inventeur(s)
  • Dunga, Mohan
  • Matsuno, Koichi

Abrégé

A memory device includes an alternating stack of insulating layers and electrically conductive layers containing stepped surfaces in a contact region, a first stepped dielectric material portion overlying the stepped surfaces of the alternating stack, a memory opening vertically extending at least through each layer within the alternating stack, a memory opening fill structure located in the memory opening and containing a vertical stack of memory elements and a vertical semiconductor channel, and a bundled contact via structure vertically extending through the first stepped dielectric material portion and through a plurality of bottommost electrically conductive layers of the electrically conductive layers, and laterally contacting each of the plurality of the bottommost electrically conductive layers.

Classes IPC  ?

  • H10B 43/27 - Dispositifs EEPROM avec des isolants de grille à piégeage de charge caractérisés par les agencements tridimensionnels, p. ex. avec des cellules à des niveaux différents de hauteur la région de source et la région de drain étant à différents niveaux, p. ex. avec des canaux inclinés les canaux comprenant des parties verticales, p. ex. des canaux en forme de U
  • H10B 43/35 - Dispositifs EEPROM avec des isolants de grille à piégeage de charge caractérisés par la région noyau de mémoire avec transistors de sélection de cellules, p. ex. NON-ET

73.

STORAGE DEVICE CARRIER AND LATCHING MECHANISM

      
Numéro d'application US2023084605
Numéro de publication 2024/228751
Statut Délivré - en vigueur
Date de dépôt 2023-12-18
Date de publication 2024-11-07
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Patterson, Scott R.
  • Altermatt, Andrew
  • Wilke, Jeffrey D.

Abrégé

A device carrier mechanism configured for attachment to an electronic device such as a hard disk drive includes a pair of rotatable handles interlocked at a common first pivot at a proximal end of each handle and a respective second pivot at a distal end, a pair of pin mechanisms each coupled at the second pivot of a respective handle and having a protruding latch pin, and a frame with which each pin mechanism is translatably coupled. Such a linkage system operates as an over-center mechanism, in a device handling state responsive to an upward handling force and with the latch pins in a retracted position within the frame, a neutral state with the latch pins in an extended position extending external to the frame, and a locked over-center state with the latch pins clamped in the extended position for locking into a data storage system.

Classes IPC  ?

  • G11B 23/03 - Réceptacles pour supports d'enregistrement plats
  • G11B 23/04 - MagasinsCassettes
  • G11B 33/04 - ÉbénisterieBoîtiersBâtisDisposition des appareils dans ou sur ceux-ci modifiés pour le rangement des supports d'enregistrement

74.

THREE-DIMENSIONAL MEMORY DEVICE CONTAINING TRENCH SUPPORT BRIDGE STRUCTURES AND METHODS FOR MANUFACTURING THE SAME

      
Numéro d'application 18357781
Statut En instance
Date de dépôt 2023-07-24
Date de la première publication 2024-11-07
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC., (USA)
Inventeur(s)
  • Matsuno, Koichi
  • Alsmeier, Johann

Abrégé

A memory device includes layer stacks, each including a respective alternating stack of respective insulating layers and respective electrically conductive layers and a respective contact-level dielectric layer, memory openings vertically extending through a respective one of the alternating stacks. memory opening fill structures located in a respective one of the memory openings and including a respective vertical stack of memory elements and a respective vertical semiconductor channel, and dielectric bridges structures located within access trenches that laterally separate the layer stacks. Each of the dielectric bridge structures includes a respective pair of contoured sidewalls. Each contoured sidewall of the dielectric bridge structures includes at least two vertically-straight and horizontally-convex surface segments that are adjoined by a vertically-extending edge. Access trench fill structures are located in the access trenches and each access trench fill structure embed a respective subset of the dielectric bridge structures.

Classes IPC  ?

  • H01L 23/00 - Détails de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide
  • H10B 43/27 - Dispositifs EEPROM avec des isolants de grille à piégeage de charge caractérisés par les agencements tridimensionnels, p. ex. avec des cellules à des niveaux différents de hauteur la région de source et la région de drain étant à différents niveaux, p. ex. avec des canaux inclinés les canaux comprenant des parties verticales, p. ex. des canaux en forme de U

75.

THREE-DIMENSIONAL MEMORY DEVICE AND METHOD OF MAKING THEREOF USING ION IMPLANTED ETCH STOP LAYER ON A SACRIFICIAL FILL MATERIAL

      
Numéro d'application 18361594
Statut En instance
Date de dépôt 2023-07-28
Date de la première publication 2024-11-07
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC., (USA)
Inventeur(s)
  • Zhou, Bing
  • Kanakamedala, Senaka
  • Makala, Raghuveer S.

Abrégé

A method includes forming a first alternating stack of first insulating layers and first sacrificial material layers over a substrate, forming a first in-process inter-tier dielectric layer over the first alternating stack, forming a first memory opening through the first in-process inter-tier dielectric layer and the first alternating stack, forming a sacrificial memory opening fill structure in the first memory opening, doping an upper portion of the sacrificial memory opening fill structure with atoms of at least one dopant species, forming a second alternating stack of second insulating layers and second sacrificial material layers over the first alternating stack, forming a second memory opening through the second alternating stack by performing an anisotropic etch process, and removing the sacrificial memory opening fill structure.

Classes IPC  ?

  • H01L 23/528 - Configuration de la structure d'interconnexion
  • G11C 16/04 - Mémoires mortes programmables effaçables programmables électriquement utilisant des transistors à seuil variable, p. ex. FAMOS
  • H01L 23/522 - Dispositions pour conduire le courant électrique à l'intérieur du dispositif pendant son fonctionnement, d'un composant à un autre comprenant des interconnexions externes formées d'une structure multicouche de couches conductrices et isolantes inséparables du corps semi-conducteur sur lequel elles ont été déposées
  • H10B 41/10 - Dispositifs de mémoire morte reprogrammable électriquement [EEPROM] comprenant des grilles flottantes caractérisés par la configuration vue du dessus
  • H10B 41/27 - Dispositifs de mémoire morte reprogrammable électriquement [EEPROM] comprenant des grilles flottantes caractérisés par les agencements tridimensionnels, p. ex. avec des cellules à des niveaux différents de hauteur la région de source et la région de drain étant à différents niveaux, p. ex. avec des canaux inclinés les canaux comprenant des parties verticales, p. ex. des canaux en forme de U
  • H10B 43/10 - Dispositifs EEPROM avec des isolants de grille à piégeage de charge caractérisés par la configuration vue du dessus
  • H10B 43/27 - Dispositifs EEPROM avec des isolants de grille à piégeage de charge caractérisés par les agencements tridimensionnels, p. ex. avec des cellules à des niveaux différents de hauteur la région de source et la région de drain étant à différents niveaux, p. ex. avec des canaux inclinés les canaux comprenant des parties verticales, p. ex. des canaux en forme de U

76.

THREE-DIMENSIONAL MEMORY DEVICE WITH THROUGH-STACK CONTACT VIA STRUCTURES AND METHOD OF MAKING THE SAME

      
Numéro d'application 18361629
Statut En instance
Date de dépôt 2023-07-28
Date de la première publication 2024-11-07
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC., (USA)
Inventeur(s)
  • Matsuno, Koichi
  • Alsmeier, Johann

Abrégé

A memory device includes a first alternating stack of first insulating layers and first electrically conductive layers, a first dielectric material portion overlying first stepped surfaces of the first alternating stack, a memory opening vertically extending through the first alternating stack, a memory opening fill structure located in the memory opening and including a vertical semiconductor channel and a vertical stack of memory elements, and a first contact via structure vertically extending through the first alternating stack and the first dielectric material portion. The first contact via structure includes a conductive pillar portion and a conductive fin portion that laterally protrudes from the conductive pillar portion and having a first annular bottom surface segment contacting an annular top surface segment of one of the first electrically conductive layers.

Classes IPC  ?

  • H10B 43/27 - Dispositifs EEPROM avec des isolants de grille à piégeage de charge caractérisés par les agencements tridimensionnels, p. ex. avec des cellules à des niveaux différents de hauteur la région de source et la région de drain étant à différents niveaux, p. ex. avec des canaux inclinés les canaux comprenant des parties verticales, p. ex. des canaux en forme de U
  • H10B 43/10 - Dispositifs EEPROM avec des isolants de grille à piégeage de charge caractérisés par la configuration vue du dessus

77.

THREE-DIMENSIONAL MEMORY DEVICE CONTAINING PERIPHERAL CIRCUIT WITH FIN FIELD EFFECT TRANSISTORS AND METHOD OF MAKING THE SAME

      
Numéro d'application 18396150
Statut En instance
Date de dépôt 2023-12-26
Date de la première publication 2024-11-07
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC., (USA)
Inventeur(s)
  • Kagawa, Ryo
  • Kodate, Hokuto
  • Yoshizawa, Kazutaka
  • Karumuri, Sriharsha
  • Abe, Tomohisa
  • Mayuzumi, Satoru

Abrégé

A semiconductor structure includes a memory die including a three-dimensional memory device, and a logic die bonded to the memory die. The logic die includes a word line switching circuit containing a fin field effect transistor including a semiconductor fin and a first gate dielectric having a first gate dielectric thickness, and further includes a first additional field effect transistor including a second gate dielectric having a second gate dielectric thickness that is different from the first gate dielectric thickness.

Classes IPC  ?

  • H10B 43/40 - Dispositifs EEPROM avec des isolants de grille à piégeage de charge caractérisés par la région de circuit périphérique
  • G11C 16/04 - Mémoires mortes programmables effaçables programmables électriquement utilisant des transistors à seuil variable, p. ex. FAMOS
  • H01L 23/522 - Dispositions pour conduire le courant électrique à l'intérieur du dispositif pendant son fonctionnement, d'un composant à un autre comprenant des interconnexions externes formées d'une structure multicouche de couches conductrices et isolantes inséparables du corps semi-conducteur sur lequel elles ont été déposées
  • H01L 23/528 - Configuration de la structure d'interconnexion
  • H01L 29/66 - Types de dispositifs semi-conducteurs
  • H01L 29/78 - Transistors à effet de champ l'effet de champ étant produit par une porte isolée
  • H10B 41/10 - Dispositifs de mémoire morte reprogrammable électriquement [EEPROM] comprenant des grilles flottantes caractérisés par la configuration vue du dessus
  • H10B 41/27 - Dispositifs de mémoire morte reprogrammable électriquement [EEPROM] comprenant des grilles flottantes caractérisés par les agencements tridimensionnels, p. ex. avec des cellules à des niveaux différents de hauteur la région de source et la région de drain étant à différents niveaux, p. ex. avec des canaux inclinés les canaux comprenant des parties verticales, p. ex. des canaux en forme de U
  • H10B 41/35 - Dispositifs de mémoire morte reprogrammable électriquement [EEPROM] comprenant des grilles flottantes caractérisés par la région noyau de mémoire avec un transistor de sélection de cellules, p. ex. NON-ET
  • H10B 41/41 - Dispositifs de mémoire morte reprogrammable électriquement [EEPROM] comprenant des grilles flottantes caractérisés par la région de circuit périphérique de régions de mémoire comprenant un transistor de sélection de cellules, p. ex. NON-ET
  • H10B 43/10 - Dispositifs EEPROM avec des isolants de grille à piégeage de charge caractérisés par la configuration vue du dessus
  • H10B 43/27 - Dispositifs EEPROM avec des isolants de grille à piégeage de charge caractérisés par les agencements tridimensionnels, p. ex. avec des cellules à des niveaux différents de hauteur la région de source et la région de drain étant à différents niveaux, p. ex. avec des canaux inclinés les canaux comprenant des parties verticales, p. ex. des canaux en forme de U
  • H10B 43/35 - Dispositifs EEPROM avec des isolants de grille à piégeage de charge caractérisés par la région noyau de mémoire avec transistors de sélection de cellules, p. ex. NON-ET

78.

ASYMMETRIC VREADK TO REDUCE NEIGHBORING WORD LINE INTERFERENCE IN A MEMORY DEVICE

      
Numéro d'application 18228795
Statut En instance
Date de dépôt 2023-08-01
Date de la première publication 2024-11-07
Propriétaire Western Digital Technologies, Inc. (USA)
Inventeur(s)
  • Zhao, Dengtao
  • Yang, Xiang
  • Zhang, Peng

Abrégé

The memory device includes a memory block with a plurality of memory cells that are arranged in a plurality of word lines. The plurality of word lines include a selected word line, a pair of neighboring word lines that are immediately adjacent the selected word line, and a plurality of non-neighboring word lines that are not immediately adjacent the selected word line. Circuitry can perform a sensing operation on at least one memory cell in the selected word line. During the sensing operation, the circuitry is configured to apply a reference voltage to the selected word line, apply different first and second pass voltages to the neighboring word lines, and apply a third pass voltage that is different than the first and second pass voltages to the plurality of non-neighboring word lines. The circuitry is further configured to sense a threshold voltage of the at least one memory cell.

Classes IPC  ?

  • G11C 16/08 - Circuits d'adressageDécodeursCircuits de commande de lignes de mots
  • G11C 16/04 - Mémoires mortes programmables effaçables programmables électriquement utilisant des transistors à seuil variable, p. ex. FAMOS
  • G11C 16/26 - Circuits de détection ou de lectureCircuits de sortie de données
  • G11C 16/34 - Détermination de l'état de programmation, p. ex. de la tension de seuil, de la surprogrammation ou de la sousprogrammation, de la rétention

79.

RECLAIM PACKAGE CACHE FOR THERMAL THROTTLING

      
Numéro d'application 18237096
Statut En instance
Date de dépôt 2023-08-23
Date de la première publication 2024-11-07
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Dua, Udita
  • Bordia, Kalpit

Abrégé

A storage device is communicatively coupled to a host that stores data on a primary memory package on the storage device. A controller on the storage device may monitor the temperature of components on the storage device and determine when the temperature exceeds a thermal temperature limit. When the temperature exceeds a thermal temperature limit, the controller may suspend certain operations on the primary memory package and write host data to the secondary memory package on the storage device. The controller may continue to monitor the temperature on the storage device, determine when the temperature on the storage device returns to an acceptable level, transfer data from the secondary memory package to the primary memory package, and resume writing host data to primary memory package.

Classes IPC  ?

  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement

80.

METHOD FOR OPTIMIZING LOGICAL-TO-PHYSICAL TABLE UPDATES FOR FIXED GRANULARITY LOGICAL-TO-PHYSICAL TABLES

      
Numéro d'application 18237301
Statut En instance
Date de dépôt 2023-08-23
Date de la première publication 2024-11-07
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s) Bordia, Kalpit

Abrégé

Performance on a storage device may be improved when executing a write command with sequential host data. The storage device optimizes logical-to-physical table updates for fixed granularity logical-to-physical tables that are populated when writing the sequential host data. A host interface module on the storage device may receive, from a host, a command to store the host data on a memory device and classify the host data as sequential host data or random host data. A flash translation layer on the storage device predetermines open contiguous blocks on the memory device where the sequential host data is to be written and provides a beginning address of the open contiguous blocks to the host interface module. The host interface module populates an address translation table with logical-to-physical mappings starting at the beginning address with an appropriate offset. Each entry in the address translation table corresponds to a fixed granularity.

Classes IPC  ?

  • G06F 12/02 - Adressage ou affectationRéadressage

81.

DETECTION OF DATA STORAGE DEVICE REMOVAL

      
Numéro d'application US2023084700
Numéro de publication 2024/220115
Statut Délivré - en vigueur
Date de dépôt 2023-12-18
Date de publication 2024-10-24
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Hodes, Avichay
  • Inbar, Karin
  • Bazarsky, Alexander

Abrégé

Detecting the removal of a data storage device from a storage system involves first determining that a shorter pin of an electrical connector of a storage device is disconnected from a mating electrical connector, such as by sensing a voltage drop on that pin, then determining at a later time that a longer pin of the connector is disconnected from the mating connector. Responsive to determining that the longer pin was disconnected after a predetermined period of time after the shorter pin, a conclusion may be made that the storage device has been removed from the system as opposed to being subject to a simple device power aberration. Thus, responsive data destruction action(s) may be taken to render the data stored on the device inaccessible to the attacker thereby protecting the device even after the device is removed from the storage system.

Classes IPC  ?

  • G11B 33/12 - Disposition des éléments de structure dans les appareils, p. ex. d'alimentation, des modules
  • G11B 33/10 - Aménagements pour l'indicationAménagements pour la signalisation
  • G11B 5/02 - Procédés d'enregistrement, de reproduction ou d'effacementCircuits correspondants pour la lecture, l'écriture ou l'effacement
  • G11B 7/004 - Procédés d'enregistrement, de reproduction ou d'effacementCircuits correspondants pour la lecture, l'écriture ou l'effacement

82.

SYSTEM AND METHOD FOR FLEXIBLE EMERGENCY POWER FAIL MANAGEMENT FOR MULTIPLE PERSISTENT MEMORY REGIONS

      
Numéro d'application US2024012470
Numéro de publication 2024/205695
Statut Délivré - en vigueur
Date de dépôt 2024-01-22
Date de publication 2024-10-03
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Benisty, Shay
  • Navon, Ariel
  • Bazarsky, Alexander
  • Hahn, Judah Gamliel

Abrégé

A system and method are disclosed for flexible emergency power fail management for multiple persistent memory regions. In one embodiment, a method is provided that is performed in a host in communication with a plurality of data storage devices, each data storage device having a persistent memory region, wherein the host comprises a capacitor shared by the plurality of data storage devices. The method comprises determining an allocation of power from the capacitor to each of the plurality of data storage devices; and dynamically changing the allocation of power from the capacitor to at least one data storage device of the plurality of data storage devices. Other embodiments are disclosed.

Classes IPC  ?

  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement
  • G06F 1/30 - Moyens pour agir en cas de panne ou d'interruption d'alimentation

83.

CAPACITOR HEALTH CHECK FOR DATA STORAGE DEVICES

      
Numéro d'application US2024010747
Numéro de publication 2024/196455
Statut Délivré - en vigueur
Date de dépôt 2024-01-08
Date de publication 2024-09-26
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Trichy, Narasimhan
  • Prosory, Andrew

Abrégé

A data storage device includes a non-volatile memory device, a capacitor bank, and a power regulator electrically coupled to the capacitor bank and configured to provide power to the non-volatile memory device. The data storage device further includes a controller configured to discharge the capacitor bank from a first voltage to a second voltage at a first constant current and determine a first discharge time. controller is further configured to discharge the capacitor bank from the first voltage to the second voltage at a second constant current and determine a second discharge time. A voltage holdup time of the capacitor bank is then determined based on at least the first discharge time and the second discharge time.

Classes IPC  ?

  • G01R 31/64 - Test de condensateurs
  • G01R 27/02 - Mesure de résistances, de réactances, d'impédances réelles ou complexes, ou autres caractéristiques bipolaires qui en dérivent, p. ex. constante de temps
  • G01R 19/165 - Indication de ce qu'un courant ou une tension est, soit supérieur ou inférieur à une valeur prédéterminée, soit à l'intérieur ou à l'extérieur d'une plage de valeurs prédéterminée
  • G01R 19/12 - Mesure d'un taux de variation
  • G01R 31/52 - Test pour déceler la présence de courts-circuits, de fuites de courant ou de défauts à la terre

84.

LOW POWER OPTIMIZATION BASED UPON HOST EXIT LATENCY

      
Numéro d'application US2024011408
Numéro de publication 2024/196458
Statut Délivré - en vigueur
Date de dépôt 2024-01-12
Date de publication 2024-09-26
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Elmaleh, Nissim
  • Segev, Amir
  • Benisty, Shay

Abrégé

There is a tradeoff between the amount of power consumption decreased and the latency needed to return a data storage device back to an operational power mode. When the data storage device receives a wake up indication from a host device, a controller of the data storage device initiates a counter in order to determine a host exit latency. Based on the host exit latency, the controller determines a group of low power state entrance actions from a plurality of groups to perform during a next entrance into a firmware active idle state based on an associated completion wake up time and the host exit latency. The controller selects the group whose completion wake up time is closest to the host exit latency and less than or equal to the host exit latency. The controller performs the selected groups low power state entrance actions during a next entrance into the firmware active idle state.

Classes IPC  ?

  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement

85.

PROTOCOL FOR SOLID STATE DRIVE WITH HIGH QUALITY OF SERVICE

      
Numéro d'application US2024011425
Numéro de publication 2024/191501
Statut Délivré - en vigueur
Date de dépôt 2024-01-12
Date de publication 2024-09-19
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s) Yang, Niles

Abrégé

A storage device is communicatively coupled to a host that defines a quality of service level for responses transmitted from the storage device to the host. The storage device includes a memory device to store data. The storage device also includes a controller to perform background operations to manage resources on the memory device while performing foreground operations according to the quality of service level set by the host. The controller generates a free block file including information on free blocks in the memory device and transmits the free block file to the host. The host uses the free block file to determine when the memory device is at or near a critical level of block availability and transmits an indication from to the controller. The controller adjusts the priority of the background operations in response to receipt of the indication to maintain the quality of service level.

Classes IPC  ?

  • G06F 12/02 - Adressage ou affectationRéadressage
  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement

86.

NON-VOLATILE MEMORY WITH INTELLIGENT ERASE TESTING TO AVOID NEIGHBOR PLANE DISTURB

      
Numéro d'application US2023086544
Numéro de publication 2024/191493
Statut Délivré - en vigueur
Date de dépôt 2023-12-29
Date de publication 2024-09-19
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Li, Liang
  • Yi, Dandan
  • Lee, Dana

Abrégé

A non-volatile memory system is configured to perform a multiplane erase process that concurrently erases groups of memory cells in multiple planes. Based on that multiplane erase process, the memory system determines that a first group of memory cells in a first plane of the multiple planes is slow to erase. As a result, the system will perform one or more multiplane erase processes for the groups of memory cells in multiple planes without erasing the first group of memory cells in the first plane as part of the multiplane erase process(es).

Classes IPC  ?

  • G11C 16/14 - Circuits pour effacer électriquement, p. ex. circuits de commutation de la tension d'effacement
  • G11C 16/34 - Détermination de l'état de programmation, p. ex. de la tension de seuil, de la surprogrammation ou de la sousprogrammation, de la rétention
  • G11C 16/04 - Mémoires mortes programmables effaçables programmables électriquement utilisant des transistors à seuil variable, p. ex. FAMOS

87.

Electronic device

      
Numéro d'application 29794408
Numéro de brevet D1042445
Statut Délivré - en vigueur
Date de dépôt 2021-06-11
Date de la première publication 2024-09-17
Date d'octroi 2024-09-17
Propriétaire Westem Digital Technologies, Inc. (USA)
Inventeur(s)
  • Peng, Steven Tzu-Yen
  • Vanderpol, Gregory A.
  • Sterzick, Mark F.

88.

DATA STORAGE DEVICE AND METHOD FOR HOST-ASSISTED EFFICIENT HANDLING OF MULTIPLE VERSIONS OF DATA

      
Numéro d'application US2023084858
Numéro de publication 2024/186372
Statut Délivré - en vigueur
Date de dépôt 2023-12-19
Date de publication 2024-09-12
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Agarwal, Dinesh Kumar
  • Sharma, Amit

Abrégé

A data storage device and method for host-assisted efficient handling of multiple versions of data are provided. In one embodiment, a data storage device is provided comprising a memory and a controller. The controller is configured to receive, from a host, identification of different versions of data that are to deleted together; store the different versions of the data in areas of the memory that are erasable in parallel; receive, from the host, a command to erase the different versions of the data; and erase the different versions of the data in parallel. Other embodiments are provided.

Classes IPC  ?

  • G06F 12/02 - Adressage ou affectationRéadressage
  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement

89.

DATA STORAGE DEVICE AND METHOD FOR ENHANCED RECOVERY THROUGH A HARDWARE RESET OF ONE OF ITS DISCRETE COMPONENTS

      
Numéro d'application US2023084877
Numéro de publication 2024/186373
Statut Délivré - en vigueur
Date de dépôt 2023-12-19
Date de publication 2024-09-12
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Inbar, Karin
  • Hodes, Avichay
  • Bazarsky, Alexander

Abrégé

A data storage device and method for enhanced recovery through data storage device discrete-component-hardware-reset are provided. In one embodiment, the data storage device determines that a subset of a plurality of memory dies is non-responsive, sends a request to a host to accept longer delays associated with the subset of the plurality of memory dies, power-cycles the subset of the plurality of memory dies, and then informs the host that the latency associated with those dies has been restored to normal latency or that the subset of the plurality of memory dies are inactive (in case of unsuccessful recovery). Other embodiments are possible, and each of the embodiments can be used alone or together in combination.

Classes IPC  ?

  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement

90.

KEY-PER-IO MULTIPLE TENANT ISOLATION

      
Numéro d'application US2023083666
Numéro de publication 2024/163065
Statut Délivré - en vigueur
Date de dépôt 2023-12-12
Date de publication 2024-08-08
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Segev, Amir
  • Benisty, Shay

Abrégé

The present disclosure generally relates improved key-per IO (KIPO) processing for multiple tenants. Rather than when a tenant requests a key change to stop tenants from working, indirect-double-indexing can be used to prevent bandwidth loss in tenants during adaptions for other tenants. When a tenant requests to manipulate the key-index table, the system will keep working. The current key index list will be duplicated. While the duplicated key-index list is manipulated according to the request, all tenants may still work on their current key-index tables until the request is complete. Once the request is complete, the tenant with the request will switch to the new table, while the old table is updated. Once the old table is updated, the tenant will switch to the updated table for continued work. No tenant, including the tenant that makes the request, continues working as the request is completed.

Classes IPC  ?

  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement

91.

DATA STORAGE DEVICE AND METHOD FOR HOST-ASSISTED DEFERRED DEFRAGMENTATION AND SYSTEM HANDLING

      
Numéro d'application US2023083673
Numéro de publication 2024/163066
Statut Délivré - en vigueur
Date de dépôt 2023-12-12
Date de publication 2024-08-08
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Muthiah, Ramanathan
  • Ramamurthy, Ramkumar
  • Krishna, Bhavya

Abrégé

A data storage device and method for host-assisted deferred defragmentation and system handling are provided. In one embodiment, the data storage device comprises a memory and a controller. The controller is configured to receive, from a host, a plurality of write commands and a grouping identifier associated with the plurality of write commands, wherein the plurality of write commands comprise a plurality of non-sequential logical block addresses and a plurality of sequential segments of a file; and in response to the grouping identifier being associated with the plurality of write commands, execute the plurality of write commands by storing the plurality of sequential segments of the file sequentially in the memory even though the logical block addresses associated with the segments of the file are non-sequential. Other embodiments are possible, and each of the embodiments can be used alone or together in combination.

Classes IPC  ?

  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement
  • G06F 12/02 - Adressage ou affectationRéadressage

92.

Machine learning defect management in storage devices

      
Numéro d'application 18449278
Numéro de brevet 12260877
Statut Délivré - en vigueur
Date de dépôt 2023-08-14
Date de la première publication 2024-08-01
Date d'octroi 2025-03-25
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Giri, Saket
  • Gupta, Anand Lallan
  • Lloyd, Jonathan
  • Chattopadhyay, Amit

Abrégé

Methods are provided for managing defects in Hard Disk Drive (HDD) storage devices. In particular, only a portion of the cylinders of an HDD is tested. Machine learning modeling is used to reconstruct the data for the untested cylinders. An HDD comprises a rotating disk and a read/write head actuated above the disk surface. The disk may be formatted into concentric data tracks, with each track being divided into sectors. The tracks may be organized into zones (groups of tracks called cylinders), and the axially parallel sectors in each cylinder may be organized into wedges. In a test mode, some portion of the cylinders is chosen for testing. Each wedge in the chosen cylinders is tested and labeled defective or non-defective. The test data for each defective wedge is run through a machine learning defect management logic, and inferences are made for the defective/non-defective status of the untested wedges.

Classes IPC  ?

  • G11B 19/04 - Dispositions prévenant, évitant ou signalant la surimpression sur le même support, ou d'autres fonctionnements défectueux de l'enregistrement ou de la reproduction
  • G11B 5/596 - Disposition ou montage des têtes par rapport aux supports d'enregistrement comportant des dispositions pour déplacer la tête dans le but de maintenir l'alignement relatif de la tête et du support d'enregistrement pendant l'opération de transduction, p. ex. pour compenser les irrégularités de surface ou pour suivre les pistes du support pour suivre les pistes d'un disque

93.

MACHINE LEARNING DEFECT MANAGEMENT IN STORAGE DEVICES

      
Numéro d'application 18449480
Statut En instance
Date de dépôt 2023-08-14
Date de la première publication 2024-08-01
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Giri, Saket
  • Gupta, Anand Lallan
  • Lloyd, Jonathan
  • Chattopadhyay, Amit

Abrégé

Methods are provided for managing defects in Hard Disk Drive (HDD) storage devices. In particular, only a portion of the cylinders of an HDD is tested. A bag of machine learning models is used to reconstruct the data for the untested cylinders. A defect file for the HDD is generated, a classifier model may be applied to the defect file, and one or more neural network models may be applied. If the defects are unsuitable for use by the models, then a scan of the entire HDD is run instead. An HDD comprises a rotating disk and a read/write head actuated above the disk surface. The disk may be formatted into concentric data tracks, with each track being divided into sectors. The tracks may be organized into zones (groups of tracks called cylinders), and the axially parallel sectors in each cylinder may be organized into wedges.

Classes IPC  ?

  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement

94.

NOTIFICATIONS FOR AVOIDING THERMAL SHUTDOWN

      
Numéro d'application US2023079022
Numéro de publication 2024/151337
Statut Délivré - en vigueur
Date de dépôt 2023-11-07
Date de publication 2024-07-18
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Jain, Nitin
  • Peddayyavandla, Srikanth

Abrégé

The present disclosure generally relates to improved wait time notifications from SSDs to host systems. Rather than assuming on when to restart an SSD after an asynchronous event notification (AEN) is sent, issuing a cool-off wait time. When an SSD is overheating, an AEN is sent from the SSD. An AEN may either be a warning event or a critical event. Once the AEN is received, a host may issue a banner with a cool-off wait time. The cool-off wait time is a predetermined time that will begin if the SSD is not detected by host systems. A non-detectable SSD means that the SSD is in a thermal shut down mode, which is initiated by a PMIC. In the thermal shut down mode, the cool-off wait timer will begin at host side. After the time has elapsed the SSD can then be restarted either manually by user or automatically by host.

Classes IPC  ?

  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement

95.

METHOD FOR HANDLING EXTREME TEMPERATURES IN STORAGE DEVICES

      
Numéro d'application US2023079335
Numéro de publication 2024/151339
Statut Délivré - en vigueur
Date de dépôt 2023-11-10
Date de publication 2024-07-18
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Jain, Nitin
  • Peddayyavandla, Srikanth

Abrégé

An AON module on a storage device periodically obtains the temperatures of the storage device and memory device. A controller uses the temperatures obtained by the AON module to determine a calculated temperature. The controller determines when the calculated temperature is above a thermal threshold and causes the storage device to enter the thermal sleep state where normal operations on the storage device are suspended. In the thermal sleep state, power to the AON module is maintained and the power to other components is modified. The AON module starts a cool-off timer and after a cool-off time expires, the AON module causes power to at least one component on the storage device to be turned on to determine whether the temperature of the storage device is below a first thermal throttling threshold and to cause the storage device to resume normal operations.

Classes IPC  ?

  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement

96.

DATA STORAGE DEVICE AND METHOD FOR RACE-BASED DATA ACCESS IN A MULTIPLE HOST MEMORY BUFFER SYSTEM

      
Numéro d'application US2023078986
Numéro de publication 2024/147841
Statut Délivré - en vigueur
Date de dépôt 2023-11-07
Date de publication 2024-07-11
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Benisty, Shay
  • Navon, Ariel

Abrégé

A data storage device and method for race-based data access in a multiple host memory buffer system are provided. In one embodiment, the data storage device stores data in a plurality of host memory buffers in the host instead of in just the host memory buffer usually associated with the data. To read the data, the data storage device sends read commands to all of the host memory buffers. That way, even if some of the host memory buffers are busy, the data can be returned from another one of the host memory buffers. In future reads in similar workloads, a read command can be sent to the host memory buffer that returned the data. Other embodiments are possible, and each of the embodiments can be used alone or together in combination.

Classes IPC  ?

  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement

97.

FLUORINATED MEDIA LUBRICANTS WITH REDUCED HYDROCARBON FRACTION FOR DATA STORAGE DEVICES

      
Numéro d'application US2023079388
Numéro de publication 2024/147848
Statut Délivré - en vigueur
Date de dépôt 2023-11-10
Date de publication 2024-07-11
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • He, Xingliang
  • Wen, Jianming
  • Lee, Charles Cheng-Hsing

Abrégé

1f1f222n2f222222s2222222s222232s22222r2s2222s211 is a fluorinated hydrocarbon having a functional group terminating in –OH.

Classes IPC  ?

  • G11B 5/725 - Revêtements protecteurs, p. ex. antistatiques contenant un lubrifiant
  • G11B 5/71 - Supports d'enregistrement caractérisés par l'emploi d'un matériau spécifié comportant une ou plusieurs couches de particules magnétisables mélangées de façon homogène avec un produit de liaison sur une couche de base caractérisés par le lubrifiant
  • G11B 5/48 - Disposition ou montage des têtes par rapport aux supports d'enregistrement
  • G11B 5/73 - Couches de base

98.

DATA STORAGE DEVICE AND METHOD FOR DYNAMIC CONTROLLER MEMORY BUFFER ALLOCATION

      
Numéro d'application US2023079018
Numéro de publication 2024/147843
Statut Délivré - en vigueur
Date de dépôt 2023-11-07
Date de publication 2024-07-11
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Hahn, Judah Gamliel
  • Bazarsky, Alexander
  • Yonin, Micha

Abrégé

A data storage device and method for dynamic controller memory buffer allocation are disclosed. In one embodiment, a data storage device is provided comprising a memory and a controller with a controller memory buffer. The controller is configured to communicate with the non-volatile memory and is further configured to configure a size of the controller memory buffer; receive a request from the host to modify the size of the controller memory buffer during operation of the data storage device; and determine whether to grant the request to modify the size of the controller memory buffer. Other embodiments are possible, and each of the embodiments can be used alone or together in combination.

Classes IPC  ?

  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement

99.

ZNS PROTECTION WITH SMALL SLC CACHE USING ZONE GROUPS

      
Numéro d'application US2023079293
Numéro de publication 2024/147846
Statut Délivré - en vigueur
Date de dépôt 2023-11-09
Date de publication 2024-07-11
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Inbar, Karin
  • Gold, Stephen
  • Parker, Liam

Abrégé

The present disclosure generally relates to achieving an acceptable uncorrectable bit error rate (UBER) using a dual temporary data protecting approach and a small SLC cache by adding a temporary XOR protection to zone-groups rather than storing another copy of the zone within the drive. The parity data can be stored with the user data (e.g., as part of the zone-group, effectively increasing zone-group size by 1) or in a separate location, e.g., in an SLC block or another separate MLC block.

Classes IPC  ?

  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement

100.

STORAGE DEVICES HAVING MULTI-CHANNEL CAPACITIVE SENSORS FOR DETECTING GESTURE BASED COMMANDS

      
Numéro d'application US2023077255
Numéro de publication 2024/144909
Statut Délivré - en vigueur
Date de dépôt 2023-10-19
Date de publication 2024-07-04
Propriétaire WESTERN DIGITAL TECHNOLOGIES, INC. (USA)
Inventeur(s)
  • Godwin, Sudhan Immanuel
  • Narayanappa, Anil Kumar Kolar

Abrégé

Systems and methods are disclosed for providing multi-channel capacitive sensors for detecting user gestures. In certain embodiments, a data storage device includes a non-volatile memory; a plurality of metal pieces configured to form one or more heat sinks of the data storage device and to form a plurality of capacitive pads of a capacitive sensor configured to detect a user gesture; and a controller configured to: detect a gesture of a user in proximity of the plurality of capacitive pads using the capacitive sensor; and perform a command associated with the data storage device based on the detected gesture.

Classes IPC  ?

  • G06F 3/06 - Entrée numérique à partir de, ou sortie numérique vers des supports d'enregistrement
  • G06F 3/044 - Numériseurs, p. ex. pour des écrans ou des pavés tactiles, caractérisés par les moyens de transduction par des moyens capacitifs
  • G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur
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