Nuvoton Technology Corporation Japan

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IPC Class
H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate 48
H01S 5/343 - Structure or shape of the active regionMaterials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser 48
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte 42
H01S 5/22 - Structure or shape of the semiconductor body to guide the optical wave having a ridge or a stripe structure 39
G01S 17/894 - 3D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar 36
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1.

VIDEO MONITORING DEVICE AND VIDEO MONITORING METHOD

      
Application Number 19322072
Status Pending
Filing Date 2025-09-08
First Publication Date 2026-01-01
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Furutani, Koichi
  • Mukai, Masayasu

Abstract

A video monitoring device that monitors video data received from a video display device that receives a video signal from a camera and displays a video, the video monitoring device including: a video extractor that extracts, from the video data, color information of each pixel in an image indicated by the video data; a specific color difference operator that computes, for each pixel, difference information between a color indicated by the color information and a predetermined specific color; a histogram calculator that calculates a histogram by classifying the difference information computed for each pixel, the histogram having, for each difference interval, a frequency indicating the number of pixels belonging to the difference interval; and an anomaly detector that generates and outputs a signal indicating that the video data is anomalous, when a frequency of belonging to a predetermined difference interval in the histogram is at least a first threshold.

IPC Classes  ?

  • H04N 17/02 - Diagnosis, testing or measuring for television systems or their details for colour television signals
  • G06V 10/50 - Extraction of image or video features by performing operations within image blocksExtraction of image or video features by using histograms, e.g. histogram of oriented gradients [HoG]Extraction of image or video features by summing image-intensity valuesProjection analysis
  • G06V 10/56 - Extraction of image or video features relating to colour
  • G06V 10/60 - Extraction of image or video features relating to illumination properties, e.g. using a reflectance or lighting model
  • G06V 20/40 - ScenesScene-specific elements in video content

2.

RADIO FREQUENCY POWER AMPLIFIER

      
Application Number 19313333
Status Pending
Filing Date 2025-08-28
First Publication Date 2025-12-25
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Motoyoshi, Kaname
  • Miyaji, Masayuki
  • Maruyama, Shinichi

Abstract

A radio frequency power amplifier includes a power amplification transistor and a gate bias circuit. The gate bias circuit includes a VHb terminal connected to a high voltage power supply for bias, a VLb terminal connected to a low voltage power supply for bias, an enable terminal that receives an enable signal, an enable transistor and a voltage dividing resistor that are connected in series and connected between the VHb terminal and the VLb terminal, a driver that outputs a voltage to a control terminal of the enable transistor, and a gate bias output terminal that outputs, as a gate bias voltage, a divided voltage generated by the voltage dividing resistor. When an OFF signal is received as the enable signal, the driver causes the enable transistor to operate in a first operating area that is not a cutoff region.

IPC Classes  ?

  • H03F 1/02 - Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
  • H03F 3/24 - Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages

3.

SEMICONDUCTOR LASER ELEMENT

      
Application Number JP2025017561
Publication Number 2025/258310
Status In Force
Filing Date 2025-05-14
Publication Date 2025-12-18
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Takayama, Toru
  • Hata, Masayuki

Abstract

Provided is a semiconductor laser element (100) comprising a substrate (101), a semiconductor laminate (100S) disposed above the substrate (101), and a p-side electrode (113) disposed above the semiconductor laminate (100S) and in contact with the semiconductor laminate (100S), wherein the semiconductor laminate (100S) includes: an n-type cladding layer (102) that is a nitride semiconductor layer containing Al; an n-side guide layer (104) disposed above the n-type cladding layer (102); an active layer (105) disposed above the n-side guide layer (104); and a p-type cladding layer (110) that is disposed above the active layer (105) and is a nitride semiconductor layer containing Al, the composition ratio of Al in the n-type cladding layer (102) is greater than the composition ratio of Al in the p-type cladding layer (110), and the p-side electrode (113) is made of at least one of Ag, an Ag alloy, Al, or a translucent conductive film.

IPC Classes  ?

  • H01S 5/20 - Structure or shape of the semiconductor body to guide the optical wave
  • H01S 5/042 - Electrical excitation
  • H01S 5/343 - Structure or shape of the active regionMaterials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser

4.

SEMICONDUCTOR LASER ELEMENT

      
Application Number JP2025017563
Publication Number 2025/258311
Status In Force
Filing Date 2025-05-14
Publication Date 2025-12-18
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Takayama, Toru
  • Hata, Masayuki

Abstract

This semiconductor laser element (100) is provided with: a substrate (101) which is formed of AlGaN; and a semiconductor multilayer body (100S) which is disposed above the substrate (101). The semiconductor multilayer body (100S) comprises: an n-type cladding layer (103) that is disposed above the substrate (101) and is formed of AlGaN; an n-side guide layer (104) that is disposed above the n-type cladding layer (103) and contains Al; an active layer (105) that is disposed above the n-side guide layer (104); and a p-type cladding layer (110) that is disposed above the active layer (105). The active layer (105) comprises a well layer (105b) and barrier layers (105a, 105c). The bandgap energy of the substrate (101) is greater than the bandgap energy of the n-side guide layer (104) and lower than the bandgap energy of the n-type cladding layer (103).

IPC Classes  ?

  • H01S 5/343 - Structure or shape of the active regionMaterials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser
  • H01S 5/22 - Structure or shape of the semiconductor body to guide the optical wave having a ridge or a stripe structure
  • H01S 5/042 - Electrical excitation

5.

SEMICONDUCTOR DEVICE

      
Application Number JP2025020700
Publication Number 2025/258539
Status In Force
Filing Date 2025-06-09
Publication Date 2025-12-18
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Imamura, Takeshi
  • Ajimoto, Ryouichi
  • Yamamoto, Kouki
  • Kimura, Akira

Abstract

This semiconductor device (1) comprises: a semiconductor layer (40) which has a semiconductor substrate (32) that has a first conductivity type and contains an impurity of a first concentration, and a low-concentration impurity layer (33) that is formed to be in contact with the upper surface of the semiconductor substrate (32), has the first conductivity type, and contains an impurity of a second concentration that is lower than the first concentration; a first vertical MOS transistor (10) and a second vertical MOS transistor (20) which use the semiconductor substrate (32) as a common drain region; and a first Schottky barrier diode (81) which uses the low-concentration impurity layer (33) as a cathode in a case where the first conductivity type is N-type, and uses the low-concentration impurity layer (33) as an anode in a case where the first conductivity type is P-type, the first Schottky barrier diode (81) being connected in parallel in the same forward direction with a body diode of the first vertical MOS transistor (10).

IPC Classes  ?

  • H10D 84/80 - Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups or , e.g. integration of IGFETs
  • H10D 30/66 - Vertical DMOS [VDMOS] FETs

6.

LIGHT SOURCE MODULE

      
Application Number 19288608
Status Pending
Filing Date 2025-08-01
First Publication Date 2025-12-11
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Yamanaka, Kazuhiko
  • Asaka, Hiroshi

Abstract

A light source module includes: a plurality of optical units, wherein each of the plurality of optical units includes: a semiconductor laser element that emits laser light; a fast axis cylindrical lens (FACL); a first fast axis adjustment lens (first lens); and a slow axis collimator lens (SACL), and α satisfies Formula 1: α=F2/F1 (Formula 1), β satisfies Formula 2: β=d/F2 (Formula 2), and when F2>0, α and β satisfy Formula 3, Formula 4, Formula 5, and Formula 6: α>1 (Formula 3), αβ>1 (Formula 4), β<(1/α)+(⅓) (Formula 5), β<1 (Formula 6), where F1 denotes an effective focal length of the FACL, F2 denotes an effective focal length of the first lens, and d denotes a distance between a principal point of the FACL and a principal point of the first lens.

IPC Classes  ?

  • H01S 5/02253 - Out-coupling of light using lenses
  • H01S 5/02325 - Mechanically integrated components on mount members or optical micro-benches

7.

IN-VEHICLE TELLTALE FAILURE DIAGNOSIS DEVICE AND IN-VEHICLE TELLTALE FAILURE DIAGNOSIS METHOD

      
Application Number 19301533
Status Pending
Filing Date 2025-08-15
First Publication Date 2025-12-11
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Furutani, Koichi
  • Mukai, Masayasu

Abstract

An in-vehicle telltale failure diagnosis device includes: a correct-answer icon area memory controller that obtains and stores a reference correct-answer icon image; an icon image cutter that cuts out an icon image from a combined image; an icon correlation calculator that calculates a first correlation value between an icon in the icon image that has been cut out and an icon in the reference correct-answer icon image; a background correlation calculator that calculates a second correlation value between a background part excepting the icon and a predetermined tonal color; and an icon failure determiner that determines, based on the first correlation value, that the icon in the icon image is a failure, and a background failure determiner that determines, based on the second correlation value, that the background part in the icon image is a failure.

IPC Classes  ?

  • B60K 35/90 - Calibration of instruments, e.g. setting initial or reference parametersTesting of instruments, e.g. detecting malfunction
  • G06V 10/75 - Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video featuresCoarse-fine approaches, e.g. multi-scale approachesImage or video pattern matchingProximity measures in feature spaces using context analysisSelection of dictionaries

8.

SEMICONDUCTOR LASER ELEMENT AND METHOD FOR PRODUCING SEMICONDUCTOR LASER ELEMENT

      
Application Number JP2025019969
Publication Number 2025/254089
Status In Force
Filing Date 2025-06-03
Publication Date 2025-12-11
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Samonji, Katsuya
  • Nakazawa, Shuichi

Abstract

A semiconductor laser element (100) emits laser light and comprises: a substrate (11); a semiconductor multilayer body (100S) that is disposed above the substrate (11) and contains a GaN-based semiconductor; and a contact electrode (41) that is in contact with the semiconductor multilayer body (100S) and contains Ag. The semiconductor multilayer body (100S) has an n-type semiconductor layer that is disposed above the substrate (11), an active layer (22) that is disposed above the n-type semiconductor layer, and a p-type semiconductor layer that is disposed above the active layer (22), and also has a bottom surface (30Rb) that is positioned at the upper end of the semiconductor multilayer body (100S) above the active layer (22), and a ridge (30R) that is adjacent to the bottom surface (30Rb), protrudes upward from the bottom surface (30Rb), and extends in the emission direction of the laser light. The contact electrode (41) is in contact with an upper surface (30Ru) and a side surface (30Rs) of the ridge (30R), and at least a part of the bottom surface (30Rb).

IPC Classes  ?

  • H01S 5/22 - Structure or shape of the semiconductor body to guide the optical wave having a ridge or a stripe structure
  • H01S 5/042 - Electrical excitation
  • H01S 5/343 - Structure or shape of the active regionMaterials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser

9.

SEMICONDUCTOR LASER ELEMENT AND METHOD FOR MANUFACTURING SEMICONDUCTOR LASER ELEMENT

      
Application Number JP2025019970
Publication Number 2025/254090
Status In Force
Filing Date 2025-06-03
Publication Date 2025-12-11
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Okada, Yuta
  • Kidoguchi, Isao
  • Hiroki, Masanori
  • Nagai, Hiroki

Abstract

x21-x2y21-y2x31-x3y31-y31-y3P layer. The translucent electroconductive film (113) is in contact with the contact layer (110). The oscillation wavelength of the semiconductor laser element (100) is 610 nm or greater. The film thickness of the translucent electroconductive film (113) is 150 nm or less.

IPC Classes  ?

  • H01S 5/042 - Electrical excitation
  • H01S 5/20 - Structure or shape of the semiconductor body to guide the optical wave
  • H01S 5/343 - Structure or shape of the active regionMaterials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser

10.

TRANSISTOR DRIVE CIRCUIT

      
Application Number JP2025020158
Publication Number 2025/254136
Status In Force
Filing Date 2025-06-04
Publication Date 2025-12-11
Owner
  • NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
  • NUVOTON TECHNOLOGY SINGAPORE PTE. LTD. (Singapore)
Inventor
  • Tang, Hong Meng
  • Kang, Tien Yew
  • Fu, Jiong
  • Suenaga, Junichi

Abstract

A transistor drive circuit (100a) is a circuit for controlling a transistor switch (T1) connected between a battery stack (200) and a load (300) and comprises: a pair of capacitor connection terminals (CP terminal and CN terminal) to which a flying capacitor (104) is connected; an internal reference voltage buffer (101) for generating a voltage for activating the transistor switch (T1) and being applied between the two terminals of the transistor switch (T1); and a logic control unit (102) for activating the transistor switch (T1) in such a way that after temporarily connecting the internal reference voltage buffer (101) and the pair of capacitor connection terminals to charge the voltage generated by the internal reference voltage buffer (101) into the flying capacitor (104), the transistor switch (T1) and one of the pair of capacitor connection terminals are temporarily connected.

IPC Classes  ?

  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

11.

RANGING DEVICE AND RANGING METHOD

      
Application Number JP2025016576
Publication Number 2025/239237
Status In Force
Filing Date 2025-05-02
Publication Date 2025-11-20
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Nakamura, Seiji
  • Kawai, Yoshinao
  • Okuyama, Tetsuro
  • Ogawa, Mayu

Abstract

A ranging device (100) comprises: a light-emitting unit (10) that emits light toward an object; a light-receiving unit (20) that has a plurality of pixels that each generate a signal based on reflected light; a parameter calculation unit (30) that calculates light emission and exposure parameters indicating conditions for light emission and exposure; a light emission and exposure control unit (40) that controls the light emission and exposure on the basis of the light emission and exposure parameters calculated by the parameter calculation unit (30); and a data processing unit (50) that generates a distance image indicating the distance to the object. The light emission and exposure control unit (40) controls the light emission and exposure using a plurality of modes including a first mode and a second mode having a distance-measurement range in which a longer distance than in the first mode can be measured. If a non-measurable distance range exists between the distance-measurement range of the first mode and the distance-measurement range of the second mode, the parameter calculation unit (30) calculates the light emission and exposure parameters so as to eliminate the non-measurable distance range.

IPC Classes  ?

  • G01S 17/894 - 3D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar

12.

IMAGING ELEMENT AND IMAGING DEVICE

      
Application Number JP2025017476
Publication Number 2025/239376
Status In Force
Filing Date 2025-05-14
Publication Date 2025-11-20
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Takeshita, Akimasa
  • Miyazaki, Satoshi
  • Kito, Takayasu

Abstract

This imaging element comprises: a plurality of pixel circuits arranged in a matrix in plan view; and a plurality of signal lines through which signals outputted from the plurality of pixel circuits are transmitted. The plurality of signal lines include two or more signal lines (SIG0 to SIG3) which are provided corresponding to one column of pixel circuits among the plurality of pixel circuits. Each of the two or more signal lines (SIG0 to SIG3) includes a plurality of wires (41, 42). The two or more signal lines (SIG0 to SIG3) each have one or more wirings (41) which are arranged in a wiring layer (61), and one or more wirings (42) which are arranged in a wiring layer (62). One signal line (SIG0) of the two or more signal lines (SIG0 to SIG3) includes a section which is adjacent to the signal line (SIG1) in plan view, and such section is configured so that adjacent sections of the signal line (SIG0) and the signal line (SIG1) are disposed in mutually different wiring layers.

IPC Classes  ?

  • H10F 39/18 - Complementary metal-oxide-semiconductor [CMOS] image sensorsPhotodiode array image sensors
  • H01L 21/768 - Applying interconnections to be used for carrying current between separate components within a device
  • H01L 21/3205 - Deposition of non-insulating-, e.g. conductive- or resistive-, layers, on insulating layersAfter-treatment of these layers
  • H01L 23/522 - Arrangements for conducting electric current within the device in operation from one component to another including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body

13.

SOLID-STATE IMAGING DEVICE AND IMAGING APPARATUS

      
Application Number 19271041
Status Pending
Filing Date 2025-07-16
First Publication Date 2025-11-13
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Haga, Kenichi
  • Kito, Takayasu
  • Ikuma, Makoto

Abstract

A solid-state imaging device includes a pixel array in which a plurality of pixels are arranged in rows and columns. Each of the plurality of pixels includes: a photoelectric converter that converts received light into a signal charge; and a capacitance accumulator. Each of the plurality of pixels is configured to output M pixel signals each of which has a different gain. Control is performed on each of the plurality of pixels to cause the pixel to output N pixel signals out of the M pixel signals, N being an integer that is at least 2 and less than M.

IPC Classes  ?

  • H04N 25/51 - Control of the gain
  • H04N 25/53 - Control of the integration time
  • H04N 25/59 - Control of the dynamic range by controlling the amount of charge storable in the pixel, e.g. modification of the charge conversion ratio of the floating node capacitance
  • H04N 25/771 - Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components comprising storage means other than floating diffusion
  • H04N 25/78 - Readout circuits for addressed sensors, e.g. output amplifiers or A/D converters

14.

CONTACTLESS COMMUNICATION DEVICE, CONTROL METHOD, AND RECORDING MEDIUM

      
Application Number 19278477
Status Pending
Filing Date 2025-07-23
First Publication Date 2025-11-13
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Murakuki, Yasuo
  • Kii, Naoto
  • Sakai, Keita
  • Nakashima, Shota
  • Okawa, Yoshihito

Abstract

An IC card includes: a coil antenna that receives power from a transceiver device through contactless communication; a resonance frequency variable circuit that changes the resonance frequency of the coil antenna; a rectifier that rectifies an antenna output current output by the coil antenna; a controller that consumes a load current; a detector that detects an excess current that is a difference between a rectified output current output by the rectifier and the load current; and a resonance frequency controller that changes the resonance frequency of the coil antenna by controlling the resonance frequency variable circuit according to a detection signal output by the detector and indicating a detection result of the excess current.

IPC Classes  ?

  • H04B 5/26 - Inductive coupling using coils
  • H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
  • H04B 5/43 - Antennas
  • H04B 5/48 - Transceivers
  • H04B 5/79 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer

15.

DISPLAY VIDEO CORRECTION DEVICE, DISPLAY VIDEO CORRECTION METHOD, AND RECORDING MEDIUM

      
Application Number 19275310
Status Pending
Filing Date 2025-07-21
First Publication Date 2025-11-13
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor Kamiunten, Takashi

Abstract

A display video correction device includes: a feature extractor that extracts a feature from a camera image obtained from an in-vehicle camera; a Hough transformer that performs Hough transform on the feature extracted; a straight line detector that detects a plurality of straight lines in the camera image, based on a transform result of the Hough transform performed; a vanishing point calculator that calculates, based on the plurality of straight lines detected, first coordinates indicating coordinates of a vanishing point in the camera image; a difference calculator that calculates a difference between the first coordinates calculated and predetermined second coordinates; and a position corrector that corrects, based on the difference calculated, a position of a display area in the camera image to be displayed on a display device.

IPC Classes  ?

  • G06T 5/80 - Geometric correction
  • G06T 3/40 - Scaling of whole images or parts thereof, e.g. expanding or contracting
  • G06T 5/50 - Image enhancement or restoration using two or more images, e.g. averaging or subtraction
  • G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods

16.

SEMICONDUCTOR DEVICE

      
Application Number 19278470
Status Pending
Filing Date 2025-07-23
First Publication Date 2025-11-13
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Yasuda, Eiji
  • Sasaki, Tadashi
  • Yamamoto, Kouki
  • Ito, Yusuke
  • Kimura, Akira

Abstract

A semiconductor device includes: a semiconductor layer divided into a first region, a second region, and a third region that do not overlap each other in a plan view; a first vertical metal-oxide-semiconductor (MOS) transistor provided in the first region; a second vertical MOS transistor provided in the second region; and a third vertical MOS transistor provided in the third region. First gate wiring of the first vertical MOS transistor and third gate wiring of the third vertical MOS transistor are electrically connected in series via a first diode, with stated order being a forward direction. Second gate wiring of the second vertical MOS transistor and the third gate wiring are electrically connected in series via a second diode, with stated order being a forward direction.

IPC Classes  ?

  • H10D 84/80 - Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups or , e.g. integration of IGFETs
  • H10D 1/47 - Resistors having no potential barriers
  • H10D 8/00 - Diodes
  • H10D 8/25 - Zener diodes
  • H10D 30/63 - Vertical IGFETs
  • H10D 62/10 - Shapes, relative sizes or dispositions of the regions of the semiconductor bodiesShapes of the semiconductor bodies
  • H10D 62/60 - Impurity distributions or concentrations
  • H10D 64/27 - Electrodes not carrying the current to be rectified, amplified, oscillated or switched, e.g. gates
  • H10D 89/60 - Integrated devices comprising arrangements for electrical or thermal protection, e.g. protection circuits against electrostatic discharge [ESD]

17.

SEMICONDUCTOR DEVICE

      
Application Number 19264384
Status Pending
Filing Date 2025-07-09
First Publication Date 2025-11-06
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Kato, Ryou
  • Okawa, Ryosuke
  • Yoshii, Ryo
  • Yasuda, Eiji

Abstract

A semiconductor device includes a vertical metal-oxide semiconductor (MOS) transistor that includes: first trenches provided from an upper surface of a low-concentration impurity layer and penetrating through a body region, and extending in a first direction; and second trenches provided from the upper surface of the low-concentration impurity layer and penetrating through the body region to a depth deeper than the depth of the first trenches, and extending in the first direction. The first trenches and the second trenches are alternately disposed in a second direction, first conductors connected to a gate electrode are provided inside the first trenches and in upper portions inside the second trenches, second conductors connected to the source electrode are provided in lower portions inside the second trenches, and a pitch between the second conductors is twice a pitch between the first conductors in the second direction.

IPC Classes  ?

  • H10D 30/66 - Vertical DMOS [VDMOS] FETs
  • H10D 8/00 - Diodes
  • H10D 30/01 - Manufacture or treatment
  • H10D 62/10 - Shapes, relative sizes or dispositions of the regions of the semiconductor bodiesShapes of the semiconductor bodies
  • H10D 62/60 - Impurity distributions or concentrations
  • H10D 64/23 - Electrodes carrying the current to be rectified, amplified, oscillated or switched, e.g. sources, drains, anodes or cathodes
  • H10D 84/00 - Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers

18.

MULTIPLY-ACCUMULATE OPERATION DEVICE

      
Application Number JP2025015630
Publication Number 2025/229903
Status In Force
Filing Date 2025-04-22
Publication Date 2025-11-06
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Uenohara, Seiji
  • Awamura, Satoshi

Abstract

A multiply-accumulate operation device (30) comprises: a first current mirror circuit (41p); a second current mirror circuit (41n); an array (80) that is a collection (switch element groups (50-52)) of switch element groups which are provided in correspondence with each set among n sets of word lines (WL), and in which, in accordance with the signal state of a first word line (WL< i >) and a second word line (WLB< i >) of that set, a current flowing through a first bit line (31) is applied to a source line (33), and a current flowing through a second bit line (32) is applied to the source line (33); a constant current source (40) that maintains a constant sum of a first current (Ip) flowing through the first bit line (31) and a second current (In) flowing through the second bit line (32); and a calculation unit (44) that generates a result of a multiply-accumulate operation on the basis of the difference between the first current (Ip) and the second current (In).

IPC Classes  ?

  • G06F 17/16 - Matrix or vector computation
  • G06N 3/063 - Physical realisation, i.e. hardware implementation of neural networks, neurons or parts of neurons using electronic means

19.

SOLID-STATE IMAGING DEVICE AND IMAGING APPARATUS

      
Application Number 19273625
Status Pending
Filing Date 2025-07-18
First Publication Date 2025-11-06
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Kato, Masaru
  • Ikuma, Makoto
  • Saruwatari, Osamu
  • Onozawa, Kazutoshi
  • Yamada, Toru

Abstract

A solid-state imaging device includes: a pixel array in which a plurality of pixels are arranged in rows and columns; and a first power supply line. Each of the plurality of pixels includes a photoelectric converter, a floating diffusion, a capacitance accumulator, a first transfer transistor, an overflow transistor, a second transfer transistor, a first reset transistor, and an amplifier transistor. The solid-state imaging device further includes a resetter for resetting the floating diffusion and the capacitance accumulator at voltages different from each other.

IPC Classes  ?

  • H04N 25/59 - Control of the dynamic range by controlling the amount of charge storable in the pixel, e.g. modification of the charge conversion ratio of the floating node capacitance
  • H04N 25/63 - Noise processing, e.g. detecting, correcting, reducing or removing noise applied to dark current
  • H04N 25/771 - Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components comprising storage means other than floating diffusion
  • H04N 25/78 - Readout circuits for addressed sensors, e.g. output amplifiers or A/D converters

20.

CELL MONITORING UNIT AND CELL MONITORING METHOD

      
Application Number JP2025013846
Publication Number 2025/225348
Status In Force
Filing Date 2025-04-07
Publication Date 2025-10-30
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Kobayashi, Hitoshi
  • Endo, Satoshi
  • Otsuka, Takashi
  • Hatani, Naohisa

Abstract

A cell monitoring unit (100) is a cell monitoring unit for monitoring a battery cell (11), the cell monitoring unit comprising: a battery monitoring unit (110) for measuring the state of the battery cell (11); a power supply circuit (111); a second power supply circuit (120) for supplying lower power than the power supply circuit (111); and a radio communication unit (140) including a communication unit (146) for performing radio communication with an upper level system, a time setting circuit (147) for setting the start time and the stop time of the cell monitoring unit (100), and a time measurement unit (148) for measuring an elapsed time from the stop time. The power supply circuit (111) starts at the start time, supplies power to the battery monitoring unit (110) and the communication unit (146), and stops at the stop time, and the second power supply circuit (120) supplies power to the time measurement unit (148) during a period from the stop time to the subsequent start time.

IPC Classes  ?

  • G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

21.

VARIABLE RESISTANCE NONVOLATILE STORAGE DEVICE AND METHOD FOR DRIVING VARIABLE RESISTANCE NONVOLATILE STORAGE ELEMENT

      
Application Number 19261617
Status Pending
Filing Date 2025-07-07
First Publication Date 2025-10-30
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Morimoto, Masahiro
  • Muraoka, Shunsaku
  • Awamura, Satoshi
  • Ohara, Takeshi
  • Fujii, Satoru

Abstract

A variable resistance nonvolatile storage device includes a memory cell and a heater thermally coupled to the memory cell, and the memory cell and the heater are independently operable. The memory cell includes a first electrode layer, a second electrode layer, and a variable resistance layer sandwiched between the first electrode layer and the second electrode layer, and the heater includes a heating element, and a third terminal and a fourth terminal each connected to the heating element.

IPC Classes  ?

  • G11C 13/00 - Digital stores characterised by the use of storage elements not covered by groups , , or

22.

SEMICONDUCTOR DEVICE

      
Application Number 19252705
Status Pending
Filing Date 2025-06-27
First Publication Date 2025-10-23
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Kimura, Atsushi
  • Kato, Yoshikazu
  • Okamoto, Kazuya

Abstract

A semiconductor device includes: a filter circuit including: a resistor; a MOS capacitor; and a MOM capacitor stacked on at least one of the resistor or the MOS capacitor, wherein the following inequalities are satisfied: A semiconductor device includes: a filter circuit including: a resistor; a MOS capacitor; and a MOM capacitor stacked on at least one of the resistor or the MOS capacitor, wherein the following inequalities are satisfied: Mc≥β−γ/β+γ×Mr A semiconductor device includes: a filter circuit including: a resistor; a MOS capacitor; and a MOM capacitor stacked on at least one of the resistor or the MOS capacitor, wherein the following inequalities are satisfied: Mc≥β−γ/β+γ×Mr Mr≤√{square root over (1/2πftαβ)}  [Math. 1] where ft denotes a cutoff frequency of the filter circuit, Mr denotes a resistor area of a resistor-provided region in which the resistor is provided, Mc denotes a MOS capacitor area of a MOS capacitor-provided region in which the MOS capacitor is provided, α denotes a resistivity of the resistor, β denotes a MOS capacitance rate of the MOS capacitor, and γ denotes a MOM capacitance rate of the MOM capacitor.

IPC Classes  ?

  • H10D 84/00 - Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
  • H03H 11/12 - Frequency selective two-port networks using amplifiers with feedback

23.

SEMICONDUCTOR LIGHT-EMITTING DEVICE

      
Application Number 19255672
Status Pending
Filing Date 2025-06-30
First Publication Date 2025-10-23
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Takayama, Toru
  • Yoshida, Shinji
  • Takahashi, Kunimasa

Abstract

A semiconductor light-emitting device includes: a first semiconductor layer containing a first conductivity type nitride semiconductor; an active layer containing a nitride semiconductor including Ga or In; an electron barrier layer containing a nitride semiconductor including at least Al, and being of a second conductivity type; and a second semiconductor layer containing a second conductivity type nitride semiconductor. The electron barrier layer includes a region where an Al composition ratio increases monotonically toward the second semiconductor layer. A maximum impurity concentration position of the second conductivity type in the electron barrier layer is located between an interface on an active layer side of the electron barrier layer and an intermediate position between a maximum Al composition ratio position of the electron barrier layer in the region and an interface on an active layer side of the electron barrier layer.

IPC Classes  ?

  • H10H 20/825 - Materials of the light-emitting regions comprising only Group III-V materials, e.g. GaP containing nitrogen, e.g. GaN
  • H10H 20/816 - Bodies having carrier transport control structures, e.g. highly-doped semiconductor layers or current-blocking structures
  • H10H 20/855 - Optical field-shaping means, e.g. lenses

24.

LASER DEVICE AND METHOD FOR CONTROLLING LASER DEVICE

      
Application Number JP2025009864
Publication Number 2025/205063
Status In Force
Filing Date 2025-03-14
Publication Date 2025-10-02
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Saito, Junki
  • Yoshida, Shinji

Abstract

This laser device (1) comprises: a semiconductor laser element (20) that emits first laser light (L1); a first temperature adjustment unit (51) that heats or cools the semiconductor laser element (20); and a control unit (80) that controls the amount of current supplied to the semiconductor laser element (20) and controls the first temperature adjustment unit (51) on the basis of a target temperature that is a control target for the temperature at an installation point of the semiconductor laser element (20). The target temperature for the semiconductor laser element (20) in an initial state is the temperature that requires heating of the semiconductor laser element (20) by means of the first temperature adjustment unit (51).

IPC Classes  ?

  • H01S 5/024 - Arrangements for thermal management
  • H01S 3/0941 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a semiconductor laser, e.g. of a laser diode

25.

SUBMOUNT, SEMICONDUCTOR LASER DEVICE, AND METHOD FOR MANUFACTURING SEMICONDUCTOR LASER DEVICE

      
Application Number JP2025011275
Publication Number 2025/205525
Status In Force
Filing Date 2025-03-24
Publication Date 2025-10-02
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Araki, Tsuyoshi
  • Nishikawa, Tohru
  • Baba, Yasuo

Abstract

A submount (2) comprises: a submount body (21); an Au layer (24) positioned above the submount body (21); an upper protective metal layer (25), which is an example of a metal layer positioned above the Au layer (24); and a solder layer (26) positioned above the upper protective metal layer (25). The Au layer (24) has an exposed region (24a) exposed from the upper protective metal layer (25), and the solder layer (26) is provided over the exposed region (24a) and the upper protective metal layer (25). The upper protective metal layer (25) has a plurality of protrusions (25a) protruding toward an end face of the submount body (21), each protrusion (25a) having a first portion (25a1) exposed from the solder layer (26) and a second portion (25a2) covered by the solder layer (26). The exposed region (24a) includes an inter-protrusion region (24a1) between two adjacent protrusions (25a). At least a part of the inter-protrusion region (24a1) is covered by the solder layer (26).

IPC Classes  ?

  • H01S 5/023 - Mount members, e.g. sub-mount members
  • H01L 21/60 - Attaching leads or other conductive members, to be used for carrying current to or from the device in operation
  • H01L 23/36 - Selection of materials, or shaping, to facilitate cooling or heating, e.g. heat sinks
  • H01S 5/22 - Structure or shape of the semiconductor body to guide the optical wave having a ridge or a stripe structure
  • H01S 5/0237 - Fixing laser chips on mounts by soldering

26.

CONTROL SYSTEM AND CONTROL METHOD

      
Application Number JP2025011299
Publication Number 2025/205533
Status In Force
Filing Date 2025-03-24
Publication Date 2025-10-02
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Kubo, Tatsuro
  • Ishime, Kimihide

Abstract

A control system (100) comprises an influence determination circuit (13) and a control circuit (a CPU (11) and a system control circuit (14)). The influence determination circuit (13) determines whether or not the influence of power restoration of a target circuit (2) that is connected to a power supply (VDD) is permitted at least in an operation of a prescribed circuit (1) that is connected to the power supply (VDD). When the influence determination circuit (13) determines that the influence is not permitted, the control circuit changes operation states of: the prescribed circuit (1); and the target circuit (2) and/or a circuit other than the prescribed circuit (1) connected to the power supply (VDD).

IPC Classes  ?

  • G06F 1/28 - Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
  • G06F 1/30 - Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
  • H10D 89/60 - Integrated devices comprising arrangements for electrical or thermal protection, e.g. protection circuits against electrostatic discharge [ESD]

27.

SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING SAME

      
Application Number JP2025011357
Publication Number 2025/205554
Status In Force
Filing Date 2025-03-24
Publication Date 2025-10-02
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Katou, Yoshiaki
  • Yoshida, Hiroshi
  • Nishio, Akihiko
  • Hayashi, Shigeo

Abstract

This semiconductor device (1) comprises: a channel layer (14); a barrier layer (16) that is provided above the channel layer (14) and has a larger band gap than the channel layer (14); a p-type semiconductor layer (18) provided above the barrier layer (16); a source electrode (32) and a drain electrode (34) between which the p-type semiconductor layer (18) is interposed; an i-type Al-containing layer (20) that is provided above the p-type semiconductor layer (18), has a larger band gap than the p-type semiconductor layer (18), and contains Al; an i-type Al-free layer (22) that is provided above the Al-containing layer (20) and does not contain Al; and a gate electrode (30) that is provided above the Al-free layer (22).

IPC Classes  ?

  • H10D 30/47 - FETs having zero-dimensional [0D], one-dimensional [1D] or two-dimensional [2D] charge carrier gas channels having 2D charge carrier gas channels, e.g. nanoribbon FETs or high electron mobility transistors [HEMT]

28.

SEMICONDUCTOR LASER DEVICE, LIGHT SOURCE MODULE, AND METHOD FOR MANUFACTURING LIGHT SOURCE MODULE

      
Application Number JP2025011972
Publication Number 2025/205912
Status In Force
Filing Date 2025-03-26
Publication Date 2025-10-02
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Hata, Masayuki
  • Yamanaka, Kazuhiko
  • Asaka, Hiroshi
  • Hayashi, Shigeo

Abstract

A semiconductor laser device (1) comprises: a semiconductor laser element (200) that emits laser light; and a lens unit (100) that has a cylindrical lens (110) and an installation surface, wherein the semiconductor laser element (200) has an active layer, the cylindrical lens (110) accepts incident laser light and changes the spread angle of the laser light in the fast-axis direction, the installation surface is fixed to an installation-bearing surface, the generatrix (115) of the cylindrical lens (110) is inclined with respect to a first reference plane of the installation-bearing surface, and the angle α between the generatrix (115) and the first reference plane satisfies 0° < |α| < 45°.

IPC Classes  ?

  • H01S 5/02326 - Arrangements for relative positioning of laser diodes and optical components, e.g. grooves in the mount to fix optical fibres or lenses
  • H01S 5/02253 - Out-coupling of light using lenses

29.

HIGH FREQUENCY POWER AMPLIFIER

      
Application Number JP2025011040
Publication Number 2025/205433
Status In Force
Filing Date 2025-03-21
Publication Date 2025-10-02
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Koizumi, Haruhiko
  • Motoyoshi, Kaname
  • Miyaji, Masayuki

Abstract

A high frequency power amplifier (100) comprises a plurality of unit amplifiers (4) mounted on a semiconductor substrate (1). The plurality of unit amplifiers (4) each have: a high frequency transistor (12) which has a plurality of gate fingers (9), at least one drain finger (8), and a plurality of source fingers (7); a gate bus line (13) which is connected to one end of each of the plurality of gate fingers (9); a drain bus line (14) which is connected to one end of the at least one drain finger (8); a gate bias circuit (20) which is connected to the gate bus line (13); and a bias terminal (21) which supplies a voltage to the gate bias circuit (20). The voltages supplied to the respective bias terminals (21) of the plurality of unit amplifiers (4) are the same or different.

IPC Classes  ?

  • H03F 3/213 - Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only in integrated circuits
  • H03F 3/195 - High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only in integrated circuits

30.

DISTANCE IMAGE CAPTURING DEVICE, DISTANCE IMAGE CAPTURING METHOD, AND PROGRAM

      
Application Number JP2025011279
Publication Number 2025/205527
Status In Force
Filing Date 2025-03-24
Publication Date 2025-10-02
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Kanemaru, Masaki
  • Okuyama, Tetsuro

Abstract

A distance image capturing device (100) comprises: a light source (110); pixels (121); a drive control unit (130); a search unit (141); and a distance measurement unit (142). The light source (110) radiates irradiation light. The pixels (121) expose reflected light which is the irradiation light that has been reflected by an object (200). The drive control unit (130) causes the light source (110) to radiate irradiation light of one or a plurality of different amounts of light, and causes the pixels (121) to perform exposure. The search unit (141) determines one or a plurality of light amounts used for ranging from among the plurality of light amounts, on the basis of a plurality of distance images captured by controlling the drive control unit (130) so as to cause the light source (110) to radiate the irradiation light of the plurality of light amounts. The ranging unit (142) controls the drive control unit (130) so as to cause the light source (110) to radiate the irradiation light of one or a plurality of light amounts determined by the search unit (141), and performs ranging.

IPC Classes  ?

  • G01S 17/894 - 3D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar
  • G01S 7/497 - Means for monitoring or calibrating

31.

MOTOR DRIVE DEVICE

      
Application Number JP2025011367
Publication Number 2025/205557
Status In Force
Filing Date 2025-03-24
Publication Date 2025-10-02
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Yamashita, Kyouichi
  • Fukuda, Daisuke
  • Ishii, Takuya
  • Koizumi, Takumi
  • Mori, Kazuki

Abstract

This motor drive device comprises: a position detection unit (10) that outputs a position detection signal by detecting a counter electromotive force generated in a motor winding during a non-energization period in which the motor winding is not energized; a current waveform control unit (20) that controls a current waveform including a non-energization period; an energization control unit (30) that controls energization to the motor winding on the basis of the current waveform; and a drive unit (40) that supplies a current to the motor winding according to the control of the energization control unit (30). The energization control unit (30) switches the energization phase of the motor (100) provided with the motor winding on the basis of the position detection signal. The current waveform control unit (20) adjusts the start timing of the non-energization period on the basis of the non-energization period.

IPC Classes  ?

  • H02P 6/182 - Circuit arrangements for detecting position without separate position detecting elements using back-emf in windings

32.

INTEGRATED CIRCUIT FOR DC-DC CONVERTER, DC-DC CONVERTER, AND CONTROL METHOD THEREFOR

      
Application Number JP2025011685
Publication Number 2025/205739
Status In Force
Filing Date 2025-03-25
Publication Date 2025-10-02
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor Koda, Akeshi

Abstract

This integrated circuit (20) for a DC-DC converter comprises: a high-side switching element (14); a low-side switching element (15); a control circuit (10) that controls the high-side switching element (14) and the low-side switching element (15) such that the output voltage of an inductor (L1) is constant; a p-type semiconductor substrate (21) that includes an n-well region (22) and a p-well region (23); and an electric potential control circuit (30). The low-side switching element (15) is a transistor that includes an n-type impurity region provided in the p-well region (23) as a source or a drain. If both the high-side switching element (14) and the low-side switching element (15) are non-conductive, the electric potential control circuit (30) supplies a first electric potential to the n-well region (22), and if one of the high-side switching element (14) and the low-side switching element (15) is conducting, the electric potential control circuit (30) supplies a second electric potential higher than the first electric potential to the n-well region (22).

IPC Classes  ?

  • H02M 3/155 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
  • H10D 84/83 - Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups or , e.g. integration of IGFETs of only field-effect components of only insulated-gate FETs [IGFET]
  • H10D 89/00 - Aspects of integrated devices not covered by groups

33.

HIGH-FREQUENCY POWER AMPLIFIER

      
Application Number JP2025010087
Publication Number 2025/197819
Status In Force
Filing Date 2025-03-17
Publication Date 2025-09-25
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Matsuda, Shingo
  • Miyaji, Masayuki

Abstract

A high-frequency power amplifier (10) comprises an input terminal (1), a carrier amplifier (4), a peak amplifier (5), a composite point (8), and an output terminal (2). When A is the magnitude of a reflection coefficient with the peak amplifier (5) side being viewed from the composite point (8) while operation of the peak amplifier (5) is OFF, and θ is the phase of the reflection coefficient, the phase θ of the reflection coefficient at a first distortion frequency is θ <= arccos[-4×A/(3+A×A)] within the range of 0° or greater and less than 180°, or the phase θ of the reflection coefficient at a second distortion frequency is θ >= arccos[-4×A/(3+A×A)] within the range of -180° or greater and less than 0°.

IPC Classes  ?

  • H03F 1/02 - Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation

34.

DOHERTY AMPLIFIER

      
Application Number JP2025010116
Publication Number 2025/197830
Status In Force
Filing Date 2025-03-17
Publication Date 2025-09-25
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor Kawashima, Katsuhiko

Abstract

A main amplifier (1) and an auxiliary amplifier (2) of a Doherty amplifier are respectively constituted by epitaxial laminates (401 to 407) different from each other, transistors of the same size are respectively formed on the different epitaxial laminates, and, when the transistors are subjected to a class-C operation, the epitaxial laminate constituting the transistor having a higher gain is used for the auxiliary amplifier (2).

IPC Classes  ?

  • H03F 1/02 - Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation

35.

SEMICONDUCTOR DEVICE

      
Application Number JP2024024454
Publication Number 2025/197135
Status In Force
Filing Date 2024-07-05
Publication Date 2025-09-25
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Hirai, Eiichi
  • Inoue, Tsubasa
  • Nakamura, Hironao
  • Ito, Yusuke

Abstract

A semiconductor device (1) has a rectangular shape in which the side length in a first direction is equal to or greater than the side length in a second direction in plan view, the semiconductor device comprising: at positions that are included in a first region (A1), 2n+1 elliptical first source pads (111) of a first vertical MOS transistor (10), said source pads being arranged in a stripe pattern and extending in the second direction; and, at positions that are included in a second region (A2), 2n+1 elliptical second source pads (121) of a second vertical MOS transistor (20), said source pads being arranged in a stripe pattern and extending in the second direction, wherein a first source pad (111a) that is closest to a boundary line (90) between the first region (A1) and the second region (A2) among the 2n+1 first source pads (111) is longer than the other first source pads (111), and a second source pad (121a) that is closest to the boundary line (90) among the 2n+1 second source pads (121) is longer than the other second source pads (121).

IPC Classes  ?

  • H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate

36.

SELECTION DEVICE AND SELECTION METHOD

      
Application Number JP2025009854
Publication Number 2025/197786
Status In Force
Filing Date 2025-03-14
Publication Date 2025-09-25
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Moriguchi, Genki
  • Okura, Miki

Abstract

This selection device (100) is connected to: a plurality of processors (for example, targets (210), (220), and (230)); and a debugger (for example, a host (400)) that executes debugging of the plurality of processors, the debugger being connected to the plurality of processors via a multi-drop connection. The selection device is provided with: a first holding circuit (for example, a first register (110)) that holds first identification information indicating any one of the plurality of processors; and a selection circuit (120) that outputs, to the debugger, among one or more pieces of data output from one or more processors among the plurality of processors, only the data output from one processor indicated by the first identification information.

IPC Classes  ?

  • G06F 11/36 - Prevention of errors by analysis, debugging or testing of software

37.

SUBMOUNT, SEMICONDUCTOR DEVICE, METHOD FOR MANUFACTURING SUBMOUNT, AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE

      
Application Number JP2025010113
Publication Number 2025/197828
Status In Force
Filing Date 2025-03-17
Publication Date 2025-09-25
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Inoue, Noboru
  • Ikedo, Norio
  • Takayama, Toru
  • Araki, Tsuyoshi

Abstract

A submount (7) comprises: an electrically insulating layer (70) having a first main surface (77), a second main surface (78) positioned on a back side of the first main surface (77), and a first recessed region (71) that is a region recessed with respect to the first main surface (77) or a region recessed with respect to the second main surface (78); and a first metal layer (metal layer (82)) that covers at least a portion of the first recessed region (71). The thickness of the first metal layer at a position facing the first recessed region (71) is greater than the depth of the first recessed region (71).

IPC Classes  ?

  • H01L 23/12 - Mountings, e.g. non-detachable insulating substrates
  • H01S 5/023 - Mount members, e.g. sub-mount members
  • H01S 5/0237 - Fixing laser chips on mounts by soldering
  • H10H 20/858 - Means for heat extraction or cooling

38.

Semiconductor device

      
Application Number 19213615
Grant Number 12426337
Status In Force
Filing Date 2025-05-20
First Publication Date 2025-09-23
Grant Date 2025-09-23
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Hirai, Eiichi
  • Inoue, Tsubasa
  • Nakamura, Hironao
  • Ito, Yusuke

Abstract

A semiconductor device has a shape of a rectangular in which the side length in a first direction is greater than or equal to the side length in a second direction in a plan view, and includes 2n+1 obround first source pads of a first vertical MOS transistor that are arranged in stripes at positions within a first area and extend in the second direction and 2n+1 obround second source pads of a second vertical MOS transistor that are arranged in stripes at positions within a second area and extend in the second direction.

IPC Classes  ?

  • H10D 64/00 - Electrodes of devices having potential barriers
  • H10D 30/63 - Vertical IGFETs
  • H10D 62/10 - Shapes, relative sizes or dispositions of the regions of the semiconductor bodiesShapes of the semiconductor bodies
  • H10D 64/23 - Electrodes carrying the current to be rectified, amplified, oscillated or switched, e.g. sources, drains, anodes or cathodes
  • H10D 64/27 - Electrodes not carrying the current to be rectified, amplified, oscillated or switched, e.g. gates
  • H10D 84/83 - Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups or , e.g. integration of IGFETs of only field-effect components of only insulated-gate FETs [IGFET]

39.

SEMICONDUCTOR DEVICE AND MOUNTING SUBSTRATE

      
Application Number 19224299
Status Pending
Filing Date 2025-05-30
First Publication Date 2025-09-18
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Sakamoto, Mitsuaki
  • Hamasaki, Masao
  • Ajimoto, Ryouichi
  • Yoshida, Hiroshi
  • Yui, Takashi

Abstract

A semiconductor device includes: a semiconductor layer; a vertical metal-oxide semiconductor (MOS) transistor; a protective film; a first wiring electrode connected to a source electrode of the vertical MOS transistor; and a second wiring electrode connected to a gate electrode of the vertical MOS transistor. A first perimeter structure is provided in a perimeter portion of the first wiring electrode in the plan view of the semiconductor layer, the first perimeter structure protruding upward of the semiconductor device and including the source electrode, the protective film, and the first wiring electrode that are stacked in stated order. A second perimeter structure is provided in a perimeter portion of the second wiring electrode in the plan view of the semiconductor layer, the second perimeter structure protruding upward of the semiconductor device and including the gate electrode, the protective film, and the second wiring electrode that are stacked in stated order.

IPC Classes  ?

  • H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
  • H10D 30/66 - Vertical DMOS [VDMOS] FETs
  • H10D 64/23 - Electrodes carrying the current to be rectified, amplified, oscillated or switched, e.g. sources, drains, anodes or cathodes
  • H10D 64/27 - Electrodes not carrying the current to be rectified, amplified, oscillated or switched, e.g. gates

40.

DECOUPLING CAPACITANCE ELEMENT

      
Application Number JP2025008696
Publication Number 2025/192500
Status In Force
Filing Date 2025-03-10
Publication Date 2025-09-18
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor Usami, Shiro

Abstract

This decoupling capacitance element (100) comprises an n-type well region (11n) and a p-type well region (11p), power supply wiring (31) and ground wiring (32) extending in the X-axis direction, first n-type impurity regions (21n) and a first p-type impurity region (21p) formed in the n-type well region (11n), and second n-type impurity regions (22n) and a second p-type impurity region (22p) formed in the p-type well region (11p). The n-type well region (11n) and the p-type well region (11p) are positioned adjacent to each other in a region between the power supply wiring (31) and the ground wiring (32) in plan view. The power supply wiring (31) is electrically connected to the first n-type impurity regions (21n) and the second n-type impurity regions (22n), and the ground wiring (32) is electrically connected to the first p-type impurity region (21p) and the second p-type impurity region (22p).

IPC Classes  ?

  • H10D 1/68 - Capacitors having no potential barriers

41.

LATCH CIRCUIT DEVICE AND INITIALIZATION METHOD FOR LATCH CIRCUIT DEVICE

      
Application Number JP2025009222
Publication Number 2025/192623
Status In Force
Filing Date 2025-03-12
Publication Date 2025-09-18
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Mototani, Atsushi
  • Kurata, Masakazu

Abstract

A latch circuit device (10) comprises: a latch circuit (51) having an inverter (52) and an inverter (53) connected to each other in a positive feedback loop; and a power supply control circuit (20) for performing control for supplying a power supply voltage (VDD) to the latch circuit (51). The power supply control circuit (20) performs control such that the timing at which a power supply voltage (IVDD-IO2) is supplied to the inverter (52) is earlier than the timing at which a power supply voltage (IVDD-IO1) is supplied to the inverter (53).

IPC Classes  ?

  • H03K 3/037 - Bistable circuits
  • G11C 7/10 - Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
  • G11C 11/419 - Read-write [R-W] circuits
  • H03K 3/356 - Bistable circuits

42.

SEMICONDUCTOR LIGHT-EMITTING ELEMENT

      
Application Number JP2025007389
Publication Number 2025/192334
Status In Force
Filing Date 2025-03-03
Publication Date 2025-09-18
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Kawaguchi, Yasutoshi
  • Kawagoe, Ryoma
  • Hayashi, Shigeo
  • Furukawa, Hidetoshi

Abstract

x1-x1-xN (0≤x<1) as the main component. The p-side cladding layer (110) has a p-side cladding doped region that contains In. The In concentration in the p-side cladding doped region is 3×1017-1×1019cm-3.

IPC Classes  ?

  • H01S 5/343 - Structure or shape of the active regionMaterials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser
  • H10H 20/816 - Bodies having carrier transport control structures, e.g. highly-doped semiconductor layers or current-blocking structures
  • H10H 20/825 - Materials of the light-emitting regions comprising only Group III-V materials, e.g. GaP containing nitrogen, e.g. GaN

43.

OPTICAL SENSOR DEVICE

      
Application Number JP2025009223
Publication Number 2025/192624
Status In Force
Filing Date 2025-03-12
Publication Date 2025-09-18
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Miya, Takanori
  • Sano, Hikari
  • Nagai, Noriyuki

Abstract

An optical sensor device (10) comprises: a substrate (20); an optical sensor element (30) disposed on one surface (20a) positioned on one side (positive direction of Z-axis) of the substrate (20); an adhesive material layer (100) that is disposed between the one surface (20a) and the optical sensor element (30) and that fixes the optical sensor element (30) to the substrate (20); and a light-transmitting member (50) that covers one side of the optical sensor element (30). The optical sensor element (30) is disposed in a hollow space formed by the substrate (20) and the light-transmitting member (50). The adhesive material layer (100) includes a plurality of adhesive materials (101) arranged regularly and separately from each other.

IPC Classes  ?

  • H10F 77/50 - Encapsulations or containers
  • H10F 30/21 - Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors the devices having potential barriers, e.g. phototransistors the devices being sensitive to infrared, visible or ultraviolet radiation
  • H10F 39/12 - Image sensors

44.

SEMICONDUCTOR MODULE

      
Application Number JP2025007556
Publication Number 2025/187648
Status In Force
Filing Date 2025-03-03
Publication Date 2025-09-11
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Ohhashi, Kazuhiko
  • Katagiri, Yusuke
  • Yamamoto, Yasuhiko
  • Kakizaki, Kohei

Abstract

A semiconductor module (100) comprises: a submount substrate (11); a LID (1) having a top plate (2) and a side wall (3); a semiconductor element (31); a plurality of electrode pads (23); an adhesive (51) for fixing the LID (1) and the submount substrate (11); and a frame body (41). The frame body (41) is sandwiched between the side wall (3) of the LID (1) and the submount substrate (11), and the frame body (41) extends in a manner covering the plurality of electrode pads (23) in a plan view.

IPC Classes  ?

  • H01L 23/02 - ContainersSeals
  • H01L 23/10 - ContainersSeals characterised by the material or arrangement of seals between parts, e.g. between cap and base of the container or between leads and walls of the container

45.

SEMICONDUCTOR DEVICE AND METHOD FOR PRODUCING SAME

      
Application Number JP2025006819
Publication Number 2025/187517
Status In Force
Filing Date 2025-02-27
Publication Date 2025-09-11
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Yoshida, Hiroshi
  • Nishio, Akihiko
  • Yoshida, Ryosuke

Abstract

A semiconductor device (1) comprises: a channel layer (14); a barrier layer (16) that is provided above the channel layer (14) and that has a band gap greater than that of the channel layer (14); a p-type semiconductor layer (18) provided above the barrier layer (16); a source electrode (32) and a drain electrode (34) provided so as to sandwich the p-type semiconductor layer (18) therebetween; a gate electrode (30) provided above the p-type semiconductor layer (18); and an i-type semiconductor layer (20) provided in contact with a side surface (18c) of the p-type semiconductor layer (18). The gate electrode (30) overlaps the p-type semiconductor layer (18) and the i-type semiconductor layer (20) in plan view.

IPC Classes  ?

  • H10D 30/47 - FETs having zero-dimensional [0D], one-dimensional [1D] or two-dimensional [2D] charge carrier gas channels having 2D charge carrier gas channels, e.g. nanoribbon FETs or high electron mobility transistors [HEMT]

46.

CONTROL DEVICE AND CONTROL METHOD

      
Application Number JP2025007560
Publication Number 2025/187651
Status In Force
Filing Date 2025-03-03
Publication Date 2025-09-11
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor Nakamura, Takashi

Abstract

A control device (100) according to one aspect of the present disclosure comprises a first detection unit (110) that detects input of a first signal to a first terminal, a second detection unit (120) that detects input of a second signal to a second terminal that is different from the first terminal, and a control unit (130) that cold-starts a first processor (for example, a CPU (200)) when input of the first signal to the first terminal has been detected and input of the second signal to the second terminal is detected.

IPC Classes  ?

  • G06F 11/36 - Prevention of errors by analysis, debugging or testing of software

47.

SEMICONDUCTOR STORAGE DEVICE AND METHOD FOR SUPPLYING POWER TO SEMICONDUCTOR STORAGE DEVICE

      
Application Number JP2025005279
Publication Number 2025/182654
Status In Force
Filing Date 2025-02-18
Publication Date 2025-09-04
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Kurata, Masakazu
  • Mototani, Atsushi

Abstract

A semiconductor storage device (10) comprises: a memory cell array (24) divided into a plurality of sectors (20-23) to be sequentially accessed; and a power supply control circuit (30) that performs control for supplying a power supply voltage VDD to each of the plurality of sectors (20-23). When access is made to a first sector (for example, the sector (20)) from among the plurality of sectors (20-23), the power supply control circuit (30) performs control such that, to a second sector (for example, the sector (21)) to be accessed subsequently to the first sector, a first power supply voltage VDD necessary for the second sector to read and write data is supplied.

IPC Classes  ?

  • G06F 12/00 - Accessing, addressing or allocating within memory systems or architectures
  • G06F 12/06 - Addressing a physical block of locations, e.g. base addressing, module addressing, address space extension, memory dedication
  • G11C 5/14 - Power supply arrangements
  • G11C 11/417 - Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing, timing or power reduction for memory cells of the field-effect type

48.

INFORMATION PROCESSING METHOD, INFORMATION PROCESSING DEVICE, AND PROGRAM

      
Application Number JP2025005294
Publication Number 2025/182657
Status In Force
Filing Date 2025-02-18
Publication Date 2025-09-04
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Iwahashi, Naohiro
  • Ogura, Youichi
  • Katayama, Hajime
  • Watanabe, Naoto

Abstract

An information processing method according to an aspect of the present disclosure: acquires (S110) image information indicating an image generated by an imaging device; performs first conversion (S130) of an image using a conversion table for correcting image distortion, which is dependent on a lens included in the imaging device, and image conversion based on a change in the roll angle of the imaging device; and performs second conversion (S140) for further converting the image subjected to the first conversion, on the basis of prescribed information.

IPC Classes  ?

  • H04N 23/60 - Control of cameras or camera modules

49.

SEMICONDUCTOR LASER DEVICE AND METHOD FOR MANUFACTURING SEMICONDUCTOR LASER DEVICE

      
Application Number JP2025004942
Publication Number 2025/182611
Status In Force
Filing Date 2025-02-14
Publication Date 2025-09-04
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Setoguchi, Satoru
  • Shirozono, Hiroki
  • Hayashi, Shigeo

Abstract

A semiconductor laser device (10) is provided with: a submount (80) having a mounting surface (80a); a spacer (40) disposed on the mounting surface (80a); a semiconductor laser element (20) disposed above the spacer (40); and a bonding member (60) disposed between the mounting surface (80a) and the semiconductor laser element (20) and configured from a porous metal material that bonds the mounting surface (80a) and the semiconductor laser element (20). The semiconductor laser element (20) is provided with a bonding surface (30) facing the submount (80), and a semiconductor laminate (20S); the semiconductor laminate (20S) has a ridge (25R); the bonding surface (30) has a first region (31) that is a region facing the ridge (25R), and a second region (32) that is disposed along the first region (31); the bonding member (60) is bonded to the first region (31); and the spacer (40) is disposed at a position facing the second region (32).

IPC Classes  ?

  • H01S 5/024 - Arrangements for thermal management
  • H01L 21/60 - Attaching leads or other conductive members, to be used for carrying current to or from the device in operation
  • H01S 5/22 - Structure or shape of the semiconductor body to guide the optical wave having a ridge or a stripe structure
  • H01S 5/022 - MountingsHousings
  • H01S 5/0237 - Fixing laser chips on mounts by soldering

50.

SEMICONDUCTOR LASER DEVICE AND MANUFACTURING METHOD FOR SEMICONDUCTOR LASER DEVICE

      
Application Number JP2025004945
Publication Number 2025/182613
Status In Force
Filing Date 2025-02-14
Publication Date 2025-09-04
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Setoguchi, Satoru
  • Hata, Masayuki

Abstract

A semiconductor laser device (10) comprises: a sub-mount (80) having a mounting surface (80a); a spacer (40) disposed on the mounting surface (80a); a semiconductor laser element (20) disposed above the spacer (40); and a junction member (60) that is disposed between the spacer (40) and the semiconductor laser element (20) and joins the spacer (40) and the semiconductor laser element (20). The semiconductor laser element (20) has a counter surface (20a) that faces the sub-mount (80). In a plan view of the mounting surface (80a), the spacer (40) is not present on the outer side of one end of the semiconductor laser element (20) in a first direction perpendicular to the resonance direction of the laser beam (L0), and the junction member (60) is disposed between one end of the semiconductor laser element (20) and one end of the spacer (40) in the first direction, and the counter surface (20a) is exposed from the junction member (60) at one end of the semiconductor laser element (20).

IPC Classes  ?

  • H01S 5/024 - Arrangements for thermal management
  • H01L 21/60 - Attaching leads or other conductive members, to be used for carrying current to or from the device in operation
  • H01S 5/022 - MountingsHousings
  • H01S 5/0234 - Up-side down mountings, e.g. Flip-chip, epi-side down mountings or junction down mountings
  • H01S 5/0237 - Fixing laser chips on mounts by soldering

51.

IMAGE PROCESSING DEVICE, IMAGE PROCESSING SYSTEM, AND IMAGE PROCESSING METHOD

      
Application Number JP2025005097
Publication Number 2025/182630
Status In Force
Filing Date 2025-02-17
Publication Date 2025-09-04
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Yagi, Toshihiro
  • Kitamura, Shinji
  • Katayama, Hajime

Abstract

An image processing device (10) comprises: an image processing unit (11) that acquires, frame by frame, temporally continuous real-world images; a position information holding unit (12) that acquires, frame by frame, position information indicating the position at which the real-world images were captured; a virtual image memory (14) that acquires a virtual image created using a past real-world image N (N is an integer of 1 or more) frames prior to a current real-world image; a correction amount calculation unit (13) that calculates a correction amount for a positional deviation of the virtual image from the current real-world image on the basis of, among the position information acquired frame by frame, current position information indicating the position at which the current real-world image was captured and past position information indicating the position at which the past real-world image was captured; a correction unit (15) that corrects the positional deviation on the basis of the correction amount; and an output unit (16) that outputs the virtual image in which the positional deviation has been corrected.

IPC Classes  ?

  • G06T 19/00 - Manipulating 3D models or images for computer graphics

52.

VIDEO TRANSMISSION DEVICE, VIDEO RECEPTION DEVICE, VIDEO TRANSMISSION SYSTEM, VIDEO TRANSMISSION METHOD, AND VIDEO RECEPTION METHOD

      
Application Number JP2025005277
Publication Number 2025/182653
Status In Force
Filing Date 2025-02-18
Publication Date 2025-09-04
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Nishio, Yuki
  • Tanaka, Takayuki

Abstract

A video transmission device (10) can be connected to a stage before a preexisting transmission device (30) without a function for compressing inputted video, and comprises: a reception unit (11) that receives a video signal; a video signal compression unit (12) that, if the video signal received by the reception unit (11) is a video signal exceeding the bandwidth of a video transmission path used by the preexisting transmission device (30), compresses the video signal; a compressed video information generation unit (13) that generates first compressed video information including a parameter which was used in the compression of the video signal by the video signal compression unit (12); and a transmission unit (14) that transmits the video signal compressed by the video signal compression unit (12) and the first compressed video information to the preexisting transmission device (30).

IPC Classes  ?

  • H04N 21/24 - Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth or upstream requests

53.

SEMICONDUCTOR LIGHT-EMITTING ELEMENT AND METHOD FOR MANUFACTURING SEMICONDUCTOR LIGHT-EMITTING ELEMENT

      
Application Number JP2025006173
Publication Number 2025/182842
Status In Force
Filing Date 2025-02-21
Publication Date 2025-09-04
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Murakami, Yuma
  • Hiroki, Masanori
  • Yoshida, Shinji
  • Kidoguchi, Isao

Abstract

A semiconductor light-emitting element (10) comprises: a semiconductor laminate (10S); and a contact electrode (40) that is in contact with the semiconductor laminate (10S) and contains Ag as a main component. The contact electrode (40) has one or more recesses (D1) formed in the surface of the contact electrode (40), and on a straight line extending in a direction along the surface of the contact electrode (40), an average inter-recess distance defined by the average of the distances between two adjacent recesses (D1) among the one or more recesses (D1) is 0.11 μm or greater.

IPC Classes  ?

  • H01S 5/042 - Electrical excitation
  • H01S 5/343 - Structure or shape of the active regionMaterials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser
  • H10H 20/825 - Materials of the light-emitting regions comprising only Group III-V materials, e.g. GaP containing nitrogen, e.g. GaN
  • H10H 20/831 - Electrodes characterised by their shape
  • H10H 20/832 - Electrodes characterised by their material

54.

SEMICONDUCTOR LASER MODULE

      
Application Number 19208286
Status Pending
Filing Date 2025-05-14
First Publication Date 2025-08-28
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Nishikawa, Tohru
  • Yamanaka, Kazuhiko
  • Nishimoto, Masahiko

Abstract

A semiconductor laser module includes a semiconductor laser chip, a first collimator element, and a package. The package includes: a body having a bottom and a top with an opening; a cap member; and a window member. The semiconductor laser chip has a light-emitting point for emitting laser light. The semiconductor laser chip is located on the bottom so as to emit the laser light in a direction parallel to the principal surface of the bottom. The laser light has a greater divergence angle along the first axis than a divergence angle along a second axis perpendicular to the first axis. The first collimator element includes a concave mirror surface. The mirror surface reflects the laser light toward the opening, and reduces the divergence angle of the laser light along the first axis.

IPC Classes  ?

  • H01S 5/02255 - Out-coupling of light using beam deflecting elements
  • H01S 5/00 - Semiconductor lasers
  • H01S 5/02208 - MountingsHousings characterised by the shape of the housings
  • H01S 5/02218 - Material of the housingsFilling of the housings
  • H01S 5/02251 - Out-coupling of light using optical fibres
  • H01S 5/02253 - Out-coupling of light using lenses
  • H01S 5/02257 - Out-coupling of light using windows, e.g. specially adapted for back-reflecting light to a detector inside the housing
  • H01S 5/02325 - Mechanically integrated components on mount members or optical micro-benches
  • H01S 5/024 - Arrangements for thermal management
  • H01S 5/40 - Arrangement of two or more semiconductor lasers, not provided for in groups

55.

SEMICONDUCTOR DEVICE AND LASER MARKING METHOD

      
Application Number 19194866
Status Pending
Filing Date 2025-04-30
First Publication Date 2025-08-28
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Masuzawa, Kosuke
  • Yoshida, Hiroshi

Abstract

A semiconductor device that is a facedown mountable, chip-size-package type semiconductor device, the semiconductor device including: a semiconductor substrate; and a metal layer that is disposed on the semiconductor substrate and is exposed to outside. One or more marks are provided on an exposed surface of the metal layer. The one or more marks each include an outline portion defining an outline of the mark, and a central portion located inward of the outline portion. In a plan view of the exposed surface of the metal layer, the outline portion has a color different from at least one of a color of the central portion or a color of a base portion that is a portion of the exposed surface of the metal layer on which the one or more marks are not provided.

IPC Classes  ?

  • H01L 23/544 - Marks applied to semiconductor devices, e.g. registration marks, test patterns
  • B23K 26/073 - Shaping the laser spot
  • B23K 26/18 - Working by laser beam, e.g. welding, cutting or boring using absorbing layers on the workpiece, e.g. for marking or protecting purposes
  • B23K 26/40 - Removing material taking account of the properties of the material involved
  • B23K 101/00 - Articles made by soldering, welding or cutting
  • B23K 101/40 - Semiconductor devices
  • G09F 7/16 - Letters, numerals, or other symbols, adapted for permanent fixing to a support

56.

IMPEDANCE DETECTION DEVICE AND IMPEDANCE DETECTION METHOD

      
Application Number 19207919
Status Pending
Filing Date 2025-05-14
First Publication Date 2025-08-28
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor Mori, Ryosuke

Abstract

An impedance detection device includes: an obtainer that obtains measurement data items on at least one of a current or a voltage at I time points in a transient response when a predetermined current or voltage is supplied to a secondary cell; and a calculator that calculates internal impedance based on the measurement data items. The calculator includes: a first calculator that calculates I impedance data items by using the measurement data items; and a second calculator that calculates an element parameter of an equivalent circuit model of the secondary cell, based on the I impedance data items and an M-th degree equation in which the internal impedance is represented by a linear combination of a plurality of terms. The M-th degree equation is an equation that is based on a theoretical value and is according to the predetermined current or voltage.

IPC Classes  ?

  • G01R 31/389 - Measuring internal impedance, internal conductance or related variables
  • G01R 31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
  • G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
  • G01R 31/3842 - Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements

57.

DOHERTY AMPLIFIER

      
Application Number JP2025005095
Publication Number 2025/177977
Status In Force
Filing Date 2025-02-17
Publication Date 2025-08-28
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor Saji, Takashi

Abstract

A Doherty amplifier (100) comprising a carrier amplifier (160) and a peak amplifier (170) comprises: a distributor (180) that distributes an input signal to the carrier amplifier (160) and the peak amplifier (170); a detection circuit (110) that is connected to the output, on the peak amplifier (170) side, of the distributor (180) and detects the power inputted to the peak amplifier (170); and an active bias circuit (120) that adjusts the gate bias of the carrier amplifier (160) or the peak amplifier (170) according to an output signal from the detection circuit (110).

IPC Classes  ?

  • H03F 1/02 - Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
  • H03F 3/24 - Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
  • H03F 3/68 - Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics

58.

IMAGE SENSING DEVICE, IMAGE SENSING METHOD, AND RECORDING MEDIUM

      
Application Number 19199790
Status Pending
Filing Date 2025-05-06
First Publication Date 2025-08-21
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Nakamura, Seiji
  • Kawai, Yoshinao
  • Nakamura, Kenji

Abstract

An image sensing device includes: a 2D camera that generates a 2D image; a 3D camera that includes a light source and generates a depth image based on reflected light of light emitted by the light source; and an image recognizer that performs recognition on a subject included in the 2D image, using at least one of the 2D image or the depth image; and a camera controller that controls on and off of an operation of the 3D camera. The camera controller turns on the operation of the 3D camera based on a result of the recognition using the 2D image when the 3D camera is in a standby state, and the 3D camera enters the standby state when the camera controller turns off the operation of the 3D camera after turning on the operation.

IPC Classes  ?

  • H04N 13/296 - Synchronisation thereofControl thereof
  • H04N 13/254 - Image signal generators using stereoscopic image cameras in combination with electromagnetic radiation sources for illuminating objects
  • H04N 23/45 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images
  • H04N 23/61 - Control of cameras or camera modules based on recognised objects
  • H04N 23/65 - Control of camera operation in relation to power supply
  • H04N 23/67 - Focus control based on electronic image sensor signals

59.

DISTANCE MEASUREMENT DEVICE AND OFFSET NOISE REMOVAL METHOD

      
Application Number JP2025004420
Publication Number 2025/173690
Status In Force
Filing Date 2025-02-10
Publication Date 2025-08-21
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Ishimoto, Shinya
  • Ogawa, Mayu
  • Kawai, Yoshinao
  • Okuyama, Tetsuro

Abstract

This distance measurement device (10) comprises: a light source (11); a light reception unit (12); a drive control unit (13); a distance calculation unit (14) that calculates a distance value for the distance to a subject (20); and an offset noise removal unit (15) or the like that performs filtering on the distance value calculated by the distance calculation unit (14), thereby generating a distance image removed of offset noise. The offset noise removal unit (15) or the like counts the number of invalid values among the distance values of pixels positioned around a relevant pixel, and when the number of obtained invalid values exceeds a number threshold value, outputs the distance value of the relevant pixel by changing same to an invalid value.

IPC Classes  ?

  • G01S 17/10 - Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
  • G01C 3/06 - Use of electric means to obtain final indication
  • G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging

60.

DISTANCE MEASUREMENT IMAGING DEVICE AND METHOD FOR DRIVING DISTANCE MEASUREMENT IMAGING DEVICE

      
Application Number JP2025004423
Publication Number 2025/173691
Status In Force
Filing Date 2025-02-10
Publication Date 2025-08-21
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Nishimiya, Hayato
  • Kawamura, Hideki

Abstract

A distance measurement imaging device (10) is for generating a distance image by using a TOF method, and comprises: a light source unit (11); an imaging unit (13); a drive circuit (14) that drives the imaging unit (13) to perform exposure in each of a plurality of continuous exposure periods; and a signal processing unit (15) that calculates and outputs the distance from the distance measurement imaging device (10) to a subject (5) on the basis of a signal generated by the imaging unit (13). The plurality of continuous exposure periods correspond to the distance measurement range of the distance measurement imaging device (10). In addition to the plurality of continuous exposure periods, the drive circuit (14) causes the imaging unit (13) to perform exposure in an additional exposure period in at least one of a timing that is earlier than the plurality of continuous exposure periods and a timing that is later than the plurality of continuous exposure periods, and a signal generated in the additional exposure period is added to or subtracted from a signal generated in any of the plurality of continuous exposure periods.

IPC Classes  ?

  • G01S 7/497 - Means for monitoring or calibrating
  • G01S 17/894 - 3D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar

61.

SENSOR PACKAGE AND METHOD FOR MANUFACTURING SENSOR PACKAGE

      
Application Number JP2025004555
Publication Number 2025/173708
Status In Force
Filing Date 2025-02-12
Publication Date 2025-08-21
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Shuji, Naoto
  • Sano, Hikari
  • Kobayashi, Masato
  • Nagai, Noriyuki

Abstract

A sensor package (10 or 10A) comprises: a base material (20 or 20A) having a first surface (21) and a second surface (22) opposite to the first surface (21), and wiring (26); a chip (30) flip-chip connected to the first surface (21) of the base material; and an external conductor (60 or 60A) provided on the base material so as to be electrically connected to the wiring (26) of the base material. The chip (30) has a main surface (one main surface (31)) facing the first surface (21) of the base material, and a detection unit (100) provided on the main surface. The detection unit (100) is connected to the base material so as to be electrically connected to the wiring (26) of the base material. The base material has a through-hole (25) penetrating between the first surface (21) and the second surface (22).

IPC Classes  ?

  • H01L 23/12 - Mountings, e.g. non-detachable insulating substrates

62.

IMAGE COMPRESSION DEVICE

      
Application Number JP2025004561
Publication Number 2025/173709
Status In Force
Filing Date 2025-02-12
Publication Date 2025-08-21
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Yamamoto, Osamu
  • Furutani, Koichi

Abstract

This image compression device (1) comprises: an acquisition unit (10) that acquires MIPI image data in which respective images of a plurality of virtual channels are superimposed in units of lines constituting the images; an identification unit (20) that identifies, on the basis of identifiers added to each of a plurality of lines included in the MIPI image data, whether each of the plurality of lines is a line of an image of one of the plurality of virtual channels, and simultaneously outputs two or more identified lines of different virtual channel images; a buffer unit (30) that has a plurality of N-line buffers corresponding to the plurality of virtual channels, receives the two or more lines, and stores each of the two or more lines in an N-line buffer of the corresponding virtual channel on the basis of the identifiers added to each of the two or more lines; and a compression unit (50) that reads the data stored in the plurality of N-line buffers and compresses the respective images of the plurality of virtual channels.

IPC Classes  ?

  • H04N 19/436 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation using parallelised computational arrangements

63.

SEMICONDUCTOR LASER DEVICE AND METHOD FOR MANUFACTURING SEMICONDUCTOR LASER DEVICE

      
Application Number JP2025004823
Publication Number 2025/173756
Status In Force
Filing Date 2025-02-13
Publication Date 2025-08-21
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Watanabe, Kenta
  • Asaka, Hiroshi
  • Hayashi, Shigeo

Abstract

A semiconductor laser device (1) comprises: a semiconductor laser element (200) that emits laser light from a light emission end surface; and a lens unit (100) that has a cylindrical lens (110) and a first mounting surface. The semiconductor laser element (200) has an active layer. The cylindrical lens (110), when the laser light is incident thereon, reduces the divergence angle of the laser light in a fast-axis direction. The first mounting surface is fixed to a first mounted surface. In a plan view of the active layer, a bus (115) of the cylindrical lens (110) is inclined with respect to the first mounted surface.

IPC Classes  ?

64.

SYNCHRONIZATION SIGNAL PROCESSING DEVICE, VIDEO DISPLAY SYSTEM, AND SYNCHRONIZATION SIGNAL PROCESSING METHOD

      
Application Number JP2025004576
Publication Number 2025/173712
Status In Force
Filing Date 2025-02-12
Publication Date 2025-08-21
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Namba, Shoichiro
  • Fukue, Tetsu

Abstract

A synchronization signal processing device (100) comprises a correction value control unit (10) and a synchronization generation unit (50). The correction value control unit (10) acquires an input synchronization signal that is a vertical synchronization signal for an input video, determines whether or not the cycle of the input synchronization signal is greater than or equal to a predetermined threshold value that is greater than the cycle corresponding to the refresh rate of an LCD panel (300) on which an output video is displayed, generates a set cycle on the basis of a cycle of 1/N times the input synchronization signal (N = integer 2 or greater) when it is determined that the cycle of the input synchronization signal is greater than or equal to the predetermined threshold value, and generates a set cycle on the basis of the cycle of the input synchronization signal when it is determined that the cycle of the input synchronization signal is less than the predetermined threshold value. The synchronization generation unit (50) generates an output synchronization signal that is a vertical synchronization signal of the output video on the basis of the set cycle.

IPC Classes  ?

  • H04N 5/05 - Synchronising circuits with arrangements for extending range of synchronisation, e.g. by using switching between several time constants
  • H04N 23/60 - Control of cameras or camera modules

65.

DISTANCE MEASURING DEVICE AND METHOD FOR CALIBRATING DISTANCE MEASURING DEVICE

      
Application Number JP2025003754
Publication Number 2025/169956
Status In Force
Filing Date 2025-02-05
Publication Date 2025-08-14
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Kawasuji, Nozomi
  • Kawai, Yoshinao
  • Nakamura, Seiji

Abstract

A distance measuring device (10) comprises a light source (11), a light receiving unit (12), a drive control unit (13) that drives the light source (11) and the light receiving unit (12), a depth calculating unit (14) that calculates a depth on the basis of the amount of light received by the light receiving unit (12), a distance calculating unit (15) that includes a correction value storage unit (15a) for holding a correction value, and that calculates a distance by correcting the depth on the basis of the correction value, and a calibration unit (16) that executes calibration for updating the correction value, wherein the calibration unit (16) includes: a pulse phase sweeping unit (16a) that controls the drive control unit (13) to change a phase, which is the time difference from when a light emission pulse is output until an exposure pulse is output, such that a plurality of different phases are sequentially generated; and a correction value calculating unit (16b) that calculates the correction value from the plurality of phases and the corresponding plurality of depths obtained by the depth calculating unit (14), and causes the correction value storage unit (15a) to hold the calculated correction value.

IPC Classes  ?

  • G01S 7/497 - Means for monitoring or calibrating

66.

MOTOR DRIVE DEVICE AND MOTOR DRIVE METHOD

      
Application Number 19185729
Status Pending
Filing Date 2025-04-22
First Publication Date 2025-08-07
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Fukuda, Daisuke
  • Kuroshima, Shinichi
  • Emura, Noriaki

Abstract

A motor drive device includes: an actual speed signal generator; a target speed signal generator; a speed comparator that compares an actual speed signal and a target speed signal; and a speed command generator that generates a speed command signal according to an output from the speed comparator. The speed command generator includes: a step width generator that generates, according to the output from the speed comparator, a step width signal indicating a step width including a size and a positive or negative sign that correspond to a magnitude of one of the actual speed or the target speed with respect to the other; an update signal generator that generates an update signal; and an accumulation calculator that adds the step width indicated by the step width signal to the speed command signal and outputs a resulting speed command signal, at a timing of the update signal.

IPC Classes  ?

  • H02P 6/17 - Circuit arrangements for detecting position and for generating speed information
  • H02P 6/06 - Arrangements for speed regulation of a single motor wherein the motor speed is measured and compared with a given physical value so as to adjust the motor speed
  • H02P 29/10 - Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors for preventing overspeed or under speed

67.

INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM

      
Application Number JP2025001841
Publication Number 2025/164454
Status In Force
Filing Date 2025-01-22
Publication Date 2025-08-07
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor Karino, Shingo

Abstract

An information processing device (100) comprises: an acquiring unit (110) that acquires a first video and a second video captured with a closer focal point than the first video; a rotating unit (120) that rotates the second video through 180 degrees; a detecting unit (130) that detects a first feature quantity from the first video and detects a second feature quantity from the second video rotated through 180 degrees; a calculating unit (140) that calculates a correlation between the first feature quantity and the second feature quantity; and a determining unit (150) that determines whether or not water droplets appear in the second video on the basis of the calculated correlation.

IPC Classes  ?

  • G01N 21/27 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
  • G01W 1/14 - Rainfall or precipitation gauges
  • G06T 7/60 - Analysis of geometric attributes

68.

DRIVE MEASUREMENT CIRCUIT, IMPEDANCE MEASUREMENT DEVICE, IMPEDANCE MEASUREMENT SYSTEM, AND DRIVE MEASUREMENT METHOD

      
Application Number JP2025002429
Publication Number 2025/164570
Status In Force
Filing Date 2025-01-27
Publication Date 2025-08-07
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Okada, Yu
  • Mihashi, Tetsuya
  • Ishii, Takuya

Abstract

A drive measurement circuit (2) comprises: a current measurement unit (21) that measures the current of a first battery (B1) and the current of a second battery (B2); a voltage measurement unit (20) that measures the voltage of the first battery (B1) and the voltage of the second battery (B2); an AC detection unit (22) that receives a measurement instruction signal including information on a measurement frequency from a host system (200) that has a function of calculating the AC impedance, and measures an AC voltage and an AC current corresponding to the measurement frequency and outputs the AC voltage and the AC current to the host system (200) on the basis of the measurement result of the voltage measurement unit (20) and the measurement result of the current measurement unit (21); and a drive control unit (23) that drives a plurality of switching elements so as to periodically change the movement state of electrical energy via an inductor (14) in accordance with the measurement frequency.

IPC Classes  ?

  • G01R 31/389 - Measuring internal impedance, internal conductance or related variables
  • G01R 27/02 - Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant

69.

SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE

      
Application Number 19082833
Status Pending
Filing Date 2025-03-18
First Publication Date 2025-07-31
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Nakano, Misao
  • Nakamura, Takeo

Abstract

A semiconductor integrated circuit device includes: standard cell rows each of which includes standard cells that are arranged in an X direction and a power supply wire that extends in the X direction and supplies power to the standard cells; strap power supply wires that extend in a Y direction; supplementary strap power supply wires that extend in the Y direction and are each connected to each of the power supply wires; and switch cells arranged at intersections between the strap power supply wires and the power supply wires. The standard cell rows include a standard cell row in which no switch cell is disposed at one or more positions corresponding to, among a plurality of standard cell columns, one or more standard cell columns other than standard cell columns located at both ends of the plurality of standard cell columns.

IPC Classes  ?

  • H01L 23/528 - Layout of the interconnection structure

70.

HYDROGEN DETECTION DEVICE AND HYDROGEN DETECTION METHOD

      
Application Number JP2025001843
Publication Number 2025/159102
Status In Force
Filing Date 2025-01-22
Publication Date 2025-07-31
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Homma, Kazunari
  • Huang, Chuanyang
  • Katayama, Koji
  • Minagawa, Tomohiro
  • Kawai, Ken
  • Ito, Satoru

Abstract

A hydrogen detection device (30) is provided with a hydrogen sensor element (100), a first reference element (100a), and a second reference element (100b) that are formed above one semiconductor substrate (102) and that are connected in series. Each of the hydrogen sensor element (100), the first reference element (100a), and the second reference element (100b) includes a layered body having an identical structure. The hydrogen sensor element (100) includes an opening (110) that exposes a secondary surface of the second electrode (106) facing a primary surface thereof to the outside without the secondary surface being covered by an insulating film (107c) or the like. The first reference element (100a) and the second reference element (100b) do not have an opening that exposes the secondary surface of the second electrode (106) facing the primary surface thereof to the outside. The first reference element (100a) and the second reference element (100b) have different lengths in the direction in which current flows.

IPC Classes  ?

  • G01N 27/04 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
  • G01N 27/12 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluidInvestigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon reaction with a fluid

71.

VIDEO-SIGNAL PROCESSING DEVICE AND VIDEO-SIGNAL PROCESSING METHOD

      
Application Number JP2025001853
Publication Number 2025/159106
Status In Force
Filing Date 2025-01-22
Publication Date 2025-07-31
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Furutani, Koichi
  • Namba, Shoichiro
  • Kamijima, Tomoya

Abstract

A video-signal processing device (10) comprises: an MIPI D-PHY (21) that receives a video signal output from an MIPI camera (5); a packet analysis unit (22) that determines whether the packet generated by the MIPI D-PHY (21) is payload data or embedded data; an embedded-data extraction unit (25) that extracts embedded data from the packet generated by the MIPI D-PHY (21); a video-input processing unit (23) that receives the payload data and the embedded data, performs video-signal processing and then, outputs the payload data and the embedded data; a frame memory (30); and a selection storage unit (24) that stores the payload data in a region of the frame memory (30) associated with the payload data and stores the embedded data in a region of the frame memory (30) associated with the embedded data, and the like.

IPC Classes  ?

  • H04N 23/60 - Control of cameras or camera modules
  • H04N 7/18 - Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
  • H04N 21/236 - Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator ] into a video stream, multiplexing software data into a video streamRemultiplexing of multiplex streamsInsertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rateAssembling of a packetised elementary stream
  • H04N 21/434 - Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams or extraction of additional data from a video streamRemultiplexing of multiplex streamsExtraction or processing of SIDisassembling of packetised elementary stream

72.

NITRIDE SEMICONDUCTOR LIGHT-EMITTING ELEMENT

      
Application Number 19083979
Status Pending
Filing Date 2025-03-19
First Publication Date 2025-07-24
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Yoshida, Shinji
  • Takayama, Toru
  • Okaguchi, Takahiro
  • Inoue, Noboru

Abstract

A nitride semiconductor light-emitting element emits light and includes an N-type cladding layer, an N-side optical guide layer, an active layer, an electron blocking layer, a P-type interlayer, a P-side optical guide layer, and a P-type cladding layer. Average band gap energy of the electron blocking layer is higher than average band gap energy of the P-type cladding layer. Average band gap energy of the P-type interlayer is higher than average band gap energy of the P-side optical guide layer, and is smaller than the average band gap energy of the electron blocking layer. An average impurity concentration of the P-type interlayer is lower than an average impurity concentration of the electron blocking layer, and is higher than an average impurity concentration of the P-side optical guide layer. A peak wavelength of the light is less than 400 nm.

IPC Classes  ?

  • H01S 5/32 - Structure or shape of the active regionMaterials used for the active region comprising PN junctions, e.g. hetero- or double- hetero-structures
  • H01S 5/323 - Structure or shape of the active regionMaterials used for the active region comprising PN junctions, e.g. hetero- or double- hetero-structures in AIIIBV compounds, e.g. AlGaAs-laser
  • H01S 5/343 - Structure or shape of the active regionMaterials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser
  • H10H 20/00 - Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
  • H10H 20/816 - Bodies having carrier transport control structures, e.g. highly-doped semiconductor layers or current-blocking structures
  • H10H 20/825 - Materials of the light-emitting regions comprising only Group III-V materials, e.g. GaP containing nitrogen, e.g. GaN

73.

DISTANCE MEASURING DEVICE AND DISTANCE MEASURING METHOD

      
Application Number 19175414
Status Pending
Filing Date 2025-04-10
First Publication Date 2025-07-24
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Ichiryu, Miwa
  • Yamada, Toru
  • Shimizu, Yasuyuki
  • Nishimoto, Masahiko

Abstract

A distance measuring device includes: a light source unit that emits irradiation light; a light receiver including a pixel that generates a pixel signal based on incident light; a drive controller that controls driving of the light source unit and the light receiver; and a signal processor that derives a distance to a target object based on the pixel signal. The drive controller drives the light source unit and the pixel through a continuous wave (CW) time-of-flight (ToF) sequence and a pulse ToF sequence that are sequences for measuring a distance using mutually different types of indirect ToF methods. The signal processor derives the distance to the target object based on a first pixel signal generated by the pixel in the CW-ToF sequence and a second pixel signal generated by the pixel in the pulse ToF sequence.

IPC Classes  ?

  • G01S 17/48 - Active triangulation systems, i.e. using the transmission and reflection of electromagnetic waves other than radio waves
  • G01S 7/48 - Details of systems according to groups , , of systems according to group
  • G01S 7/481 - Constructional features, e.g. arrangements of optical elements
  • G01S 7/484 - Transmitters
  • G01S 7/4863 - Detector arrays, e.g. charge-transfer gates
  • G01S 7/4865 - Time delay measurement, e.g. time-of-flight measurement, time of arrival measurement or determining the exact position of a peak
  • G01S 7/4911 - Transmitters
  • G01S 7/4914 - Detector arrays, e.g. charge-transfer gates
  • G01S 7/4915 - Time delay measurement, e.g. operational details for pixel componentsPhase measurement
  • G01S 17/10 - Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
  • G01S 17/32 - Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated

74.

MOTOR DRIVE DEVICE AND MOTOR DRIVE METHOD

      
Application Number 19172033
Status Pending
Filing Date 2025-04-07
First Publication Date 2025-07-24
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Fukuda, Daisuke
  • Sakamoto, Shinnosuke
  • Ishii, Takuya

Abstract

A motor drive device includes: a target speed generator that generates a target speed signal indicating a target speed of a motor; an actual speed detector that generates an actual speed signal indicating an actual speed; and a driver that drives the motor to cause the actual speed indicated by the actual speed signal to approach the target speed indicated by the target speed signal. The target speed generator (i) generates an input speed signal based on an input command and a tentative speed signal higher than the actual speed signal at startup, and (ii) when the actual speed indicated by the actual speed signal at the startup is higher than a speed indicated by the input speed signal, outputs the tentative speed signal as the target speed signal.

IPC Classes  ?

  • H02P 1/16 - Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
  • H02P 1/04 - Means for controlling progress of starting sequence in dependence upon time or upon current, speed, or other motor parameter

75.

POINT CLOUD DATA PROCESSING DEVICE, POINT CLOUD DATA PROCESSING METHOD, AND PROGRAM

      
Application Number JP2025000906
Publication Number 2025/154706
Status In Force
Filing Date 2025-01-14
Publication Date 2025-07-24
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Ueda, Kei
  • Okuyama, Tetsuro

Abstract

A point cloud data processing device (100) comprises: a first ranging unit (130) that captures a first ranging image (11) using unstructured illumination (111); a second ranging unit (140) that captures a second ranging image (12) using structured illumination (112); an image processing unit (150) that generates a difference image (13) indicating the difference between the first ranging image (11) and the second ranging image (12); a point cloud converting unit (160) that, on the basis of the first ranging image (11) captured by the first ranging unit (130), performs point-cloud conversion of distance values included in the first ranging image (11) to generate first point cloud data (21); a correction data generating unit (170) that generates correction point cloud data on the basis of the difference image (13) generated by the image processing unit (150); and a point cloud correcting unit (180) that generates blended point cloud data (22) by correcting the first point cloud data (21) on the basis of the generated correction point cloud data.

IPC Classes  ?

  • G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging

76.

SEMICONDUCTOR DEVICE, AND METHOD FOR MANUFACTURING SAME

      
Application Number JP2024045308
Publication Number 2025/146789
Status In Force
Filing Date 2024-12-20
Publication Date 2025-07-10
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Nishio, Akihiko
  • Hayashi, Shigeo
  • Nishitsuji, Mitsuru

Abstract

A semiconductor device (100) is provided with: a semiconductor laminated structure (110) that contains a two-dimensional electron gas; a p-type first semiconductor layer (120) that is provided on the semiconductor laminated structure (110); and a drain electrode (160) that is in contact with the first semiconductor layer (120). The first semiconductor layer (120) includes a thick film part (122) and a thin film part (124) thinner than the thick film part (122). In the semiconductor laminated structure (110), a recessed part (112) is provided in a first region (101) contiguous to the thin film part (124) in plan view, and the drain electrode (160) is in contact with a side surface (112b) of the recessed part (112) and a side surface (124b) of the thin film part (124).

IPC Classes  ?

  • H10D 30/47 - FETs having zero-dimensional [0D], one-dimensional [1D] or two-dimensional [2D] charge carrier gas channels having 2D charge carrier gas channels, e.g. nanoribbon FETs or high electron mobility transistors [HEMT]
  • H10D 30/01 - Manufacture or treatment
  • H10D 30/87 - FETs having Schottky gate electrodes, e.g. metal-semiconductor FETs [MESFET]

77.

SEMICONDUCTOR LASER ELEMENT

      
Application Number JP2024044535
Publication Number 2025/142617
Status In Force
Filing Date 2024-12-17
Publication Date 2025-07-03
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Nakatani, Togo
  • Nagai, Hiroki
  • Hata, Masayuki

Abstract

A semiconductor laser element (1) comprises: a semiconductor laminate (1S) that emits laser light and in which semiconductor layers are laminated, the semiconductor laminate (1S) having a ridge (50R); and a first p-side electrode (91) disposed over the semiconductor laminate (1S). The semiconductor laminate (1S) has an n-type cladding layer (30), an active layer (42), a p-type cladding layer (50), a p-type barrier relaxation layer (60), and a contact layer (70). The film thickness of the contact layer (70) is 0.1 μm or less, and the bandgap energy of the contact layer (70) is smaller than the energy corresponding to the peak wavelength of the laser light. The p-type barrier relaxation layer (60) has a first p-type barrier relaxation layer (60b) and a second p-type barrier relaxation layer (60t) disposed between the contact layer (70) and the first p-type barrier relaxation layer (60b). The second p-type barrier relaxation layer (60t) is an AlGaAs layer, and the bandgap energy of the second p-type barrier relaxation layer (60t) is greater than the energy corresponding to the peak wavelength.

IPC Classes  ?

  • H01S 5/042 - Electrical excitation
  • H01S 5/22 - Structure or shape of the semiconductor body to guide the optical wave having a ridge or a stripe structure
  • H01S 5/323 - Structure or shape of the active regionMaterials used for the active region comprising PN junctions, e.g. hetero- or double- hetero-structures in AIIIBV compounds, e.g. AlGaAs-laser

78.

SEMICONDUCTOR LASER ELEMENT AND METHOD FOR PRODUCING SEMICONDUCTOR LASER ELEMENT

      
Application Number JP2024044609
Publication Number 2025/142641
Status In Force
Filing Date 2024-12-17
Publication Date 2025-07-03
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Shirozono, Hiroki
  • Nagai, Hiroki
  • Nakatani, Togo
  • Kunoh, Yasumitsu

Abstract

A semiconductor laser element (1) having a plurality of light-emitting regions (1a), said semiconductor laser element (1) comprising a substrate (10), an N-side semiconductor layer (21) positioned above the substrate (10), a light-emitting layer (22) positioned above the N-side semiconductor layer (21), a P-side semiconductor layer (23) positioned above the light-emitting layer (22), a plurality of P-side contact layers (24) positioned above the P-side semiconductor layer (23) and provided for each of the plurality of light-emitting regions (1a), and a first p-electrode (41) provided for each of the plurality of P-side contact layers (24) so as to be in contact with each of the plurality of P-side contact layers (24), wherein one of at least two first p-electrodes (41) among the plurality of first p-electrodes (41) includes a first electrode material, and another of the at least two first p-electrodes (41) includes a second electrode material having a refractive index different from that of the first electrode material.

IPC Classes  ?

  • H01S 5/042 - Electrical excitation
  • H01S 5/22 - Structure or shape of the semiconductor body to guide the optical wave having a ridge or a stripe structure

79.

IMAGING APPARATUS, DISTANCE MEASURING APPARATUS, AND FABRICATION METHOD FOR FABRICATING IMAGING APPARATUS

      
Application Number 19085098
Status Pending
Filing Date 2025-03-20
First Publication Date 2025-07-03
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Yamada, Tohru
  • Muroshima, Takahiro
  • Sogawa, Kazuaki
  • Asai, Yusuke

Abstract

An imaging apparatus includes a substrate, a photoelectric converter provided in the substrate, a first transfer transistor connected to the photoelectric converter and including a first control terminal, and a second transfer transistor connected to the photoelectric converter and including a second control terminal. The photoelectric converter includes a first semiconductor region of a first conductivity type provided in the substrate. In a plan view of the substrate, each of the first control terminal and the second control terminal overlaps the first semiconductor region. The total of the overlapping area of the first control terminal and the first semiconductor region and the overlapping area of the second control terminal and the first semiconductor region is at least 20% of the area of the photoelectric converter.

IPC Classes  ?

  • H04N 25/705 - Pixels for depth measurement, e.g. RGBZ
  • G01S 7/4865 - Time delay measurement, e.g. time-of-flight measurement, time of arrival measurement or determining the exact position of a peak
  • H04N 25/59 - Control of the dynamic range by controlling the amount of charge storable in the pixel, e.g. modification of the charge conversion ratio of the floating node capacitance
  • H04N 25/76 - Addressed sensors, e.g. MOS or CMOS sensors
  • H10F 39/00 - Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group , e.g. radiation detectors comprising photodiode arrays
  • H10F 39/18 - Complementary metal-oxide-semiconductor [CMOS] image sensorsPhotodiode array image sensors

80.

IMAGING APPARATUS, DISTANCE MEASURING APPARATUS, AND CONTROL METHOD FOR IMAGING APPARATUS

      
Application Number 19086296
Status Pending
Filing Date 2025-03-21
First Publication Date 2025-07-03
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Yamada, Tohru
  • Muroshima, Takahiro
  • Sogawa, Kazuaki
  • Sowa, Takeshi

Abstract

An imaging apparatus includes: a first semiconductor layer; a unit cell that is provided in the first semiconductor layer and includes n pixels, where n is a natural number, and a charge accumulator in which charge generated in the n pixels accumulates; and a driving circuit. Each of the n pixels includes: a photoelectric converter; a first transfer transistor that includes a first control terminal; and a second transfer transistor that includes a second control terminal, and the driving circuit supplies a voltage corresponding to an operation mode selected from among a plurality of operation modes to the first semiconductor layer, the first control terminal, or the second control terminal.

IPC Classes  ?

  • H04N 23/667 - Camera operation mode switching, e.g. between still and video, sport and normal or high and low resolution modes
  • H04N 25/76 - Addressed sensors, e.g. MOS or CMOS sensors
  • H04N 25/771 - Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components comprising storage means other than floating diffusion

81.

SEMICONDUCTOR DEVICE AND SEMICONDUCTOR MODULE

      
Application Number JP2024035507
Publication Number 2025/142014
Status In Force
Filing Date 2024-10-03
Publication Date 2025-07-03
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Taguchi, Masahide
  • Yui, Takashi

Abstract

A chip-sized package type semiconductor device (1) comprises a semiconductor layer (40), a plurality of pads (50), and a plurality of metal rewirings (20) each connected to at least one of the pads (50) and located above the upper surface of the semiconductor layer (40). The plurality of metal rewirings (20) include a plurality of first metal rewirings (21): which comprise first parts (24A) and second parts (24B) located above the first parts (24A); and in which, in a plan view, the second parts (24B) are contained within the first parts (24A) and the area of the second parts (24B) is smaller than that of the first parts (24A). Each of the plurality of first metal rewirings (21) has, in a boundary region between the corresponding first part (24A) and second part (24B) on the surface of the first metal rewiring (21), at least one linear bending portion (25) having an interior angle greater than 180° in a cross section of the first metal rewiring (21).

IPC Classes  ?

  • H01L 23/12 - Mountings, e.g. non-detachable insulating substrates
  • H01L 21/60 - Attaching leads or other conductive members, to be used for carrying current to or from the device in operation

82.

RENDERING DISPLAY SYSTEM, RENDERING DISPLAY METHOD, VOICE OUTPUT SYSTEM, AND VOICE OUTPUT METHOD

      
Application Number JP2024045180
Publication Number 2025/142776
Status In Force
Filing Date 2024-12-20
Publication Date 2025-07-03
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Tada, Kazuhito
  • Endou, Takeshi
  • Oga, Takahiro
  • Noda, Daisuke

Abstract

This rendering display system (1) comprises a rendering display device (10) and a nonvolatile memory (20). The rendering display device (10) includes: a rendering processing unit (11) that performs rendering processing; a rendering-processing idle time detection unit (12) that detects an idle time generated in the rendering processing; and a firmware update processing unit (13) that updates firmware. The nonvolatile memory (20) has a first storage area (21) and a second storage area (22) that store the firmware. The rendering processing unit (11) acquires a program code from the first storage area (21) and performs rendering processing by executing the acquired program code. The firmware update processing unit (13) makes access for firmware update to the second storage area (22) on the basis of idle time information indicating the detected idle time.

IPC Classes  ?

83.

SEMICONDUCTOR MODULE AND MANUFACTURING METHOD FOR SEMICONDUCTOR MODULE

      
Application Number JP2024045712
Publication Number 2025/142936
Status In Force
Filing Date 2024-12-24
Publication Date 2025-07-03
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor Hayashi, Masahiro

Abstract

A semiconductor module (1) comprises: a semiconductor device (100) provided with n-number of pads (101); and a mounting substrate (200) provided with n-number of lands (201) corresponding to the n-number of pads (101) in a one-to-one manner. Each of the n-number of pads (101) is joined to, among the n-number of lands (201), one land (201) corresponding to the pad (101) via a solder bonding material (301). When the area of a nearest pad (101a) that is nearest to the center of the semiconductor device (100) among the n-number of pads (101) is defined as Pa, the area of a farthest pad (101b) that is farthest from said center is defined as Pb, the area of a nearest land (201a) corresponding to the nearest pad (101a) among the n-number of lands (201) is defined as La, and the area of a farthest land (201b) corresponding to the farthest pad (101b) is defined as Lb, Pa/La is less than 1 and Pb/Lb is greater than 1, or Pa/La is greater than 1 and Pb/Lb is less than 1.

IPC Classes  ?

  • H01L 21/60 - Attaching leads or other conductive members, to be used for carrying current to or from the device in operation
  • H05K 3/34 - Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering

84.

BATTERY MANAGEMENT SYSTEM

      
Application Number JP2024041083
Publication Number 2025/134658
Status In Force
Filing Date 2024-11-20
Publication Date 2025-06-26
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor Kobayashi, Hitoshi

Abstract

A battery management system (5) for managing a battery pack (10) comprises: a plurality of monitoring circuits (100) for monitoring the battery pack (10); and a management circuit (200) that is connected to each of the plurality of monitoring circuits (100) by wireless communication and manages the battery pack (10). At least one of the plurality of monitoring circuits (100) and/or the management circuit (200) has a measurement circuit (215) for measuring time of flight (TOF) between the monitoring circuit (100) and the management circuit (200) by impulse response ultra wide band (IR-UWB) communication.

IPC Classes  ?

  • H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
  • B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
  • G01R 31/3835 - Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
  • G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
  • H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters

85.

NITRIDE SEMICONDUCTOR LASER ELEMENT

      
Application Number JP2024044523
Publication Number 2025/135006
Status In Force
Filing Date 2024-12-17
Publication Date 2025-06-26
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Takayama, Toru
  • Hiroki, Masanori
  • Watanabe, Kenta

Abstract

A nitride semiconductor laser element (100) comprises: an n-type cladding layer (102); an active layer (105) disposed above the n-type cladding layer (102); a p-type cladding layer (110) disposed above the active layer (105) and having a ridge (110R) formed therein; a conductive oxide film (113) disposed above the p-type cladding layer (110) and translucent with respect to light of the excitation wavelength of the nitride semiconductor laser element (113); and a metal electrode (114) disposed above the conductive oxide film (113) and including a metal that has higher reflectance than palladium with respect to light of the excitation wavelength.

IPC Classes  ?

  • H01S 5/042 - Electrical excitation
  • H01S 5/22 - Structure or shape of the semiconductor body to guide the optical wave having a ridge or a stripe structure
  • H01S 5/343 - Structure or shape of the active regionMaterials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser

86.

HYDROGEN DETECTION ELEMENT AND METHOD FOR MANUFACTURING THE SAME

      
Application Number 19058748
Status Pending
Filing Date 2025-02-20
First Publication Date 2025-06-26
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Minagawa, Tomohiro
  • Ito, Satoru
  • Kawai, Ken
  • Homma, Kazunari
  • Katayama, Koji

Abstract

A hydrogen detection element includes: a first electrode that is planar; a second electrode that is planar, is disposed opposite to the first electrode, includes a principal surface covered by an insulating film (a protective film and a second insulating film), and includes a plurality of exposed portions that serve as a plurality of hydrogen gas inlets and are each provided by opening part of the insulating film on the principal surface; a metal oxide layer that is disposed between the first electrode and the second electrode; and a first terminal and a second terminal that are electrically connected to the second electrode at positions between which the plurality of exposed portions are arranged in plan view of the second electrode. When hydrogen gas is introduced to the plurality of exposed portions, resistance between the first terminal and the second terminal changes.

IPC Classes  ?

  • G01N 27/12 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluidInvestigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon reaction with a fluid
  • G01N 33/00 - Investigating or analysing materials by specific methods not covered by groups

87.

SEMICONDUCTOR DEVICE AND MOUNTING SUBSTRATE

      
Application Number 19075303
Status Pending
Filing Date 2025-03-10
First Publication Date 2025-06-26
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Sakamoto, Mitsuaki
  • Hamasaki, Masao
  • Ajimoto, Ryouichi
  • Yoshida, Hiroshi
  • Yui, Takashi

Abstract

A semiconductor device includes: a semiconductor layer; a vertical metal-oxide semiconductor (MOS) transistor; a protective film; a first wiring electrode connected to a source electrode of the vertical MOS transistor; and a second wiring electrode connected to a gate electrode of the vertical MOS transistor. A first perimeter structure is provided in a perimeter portion of the first wiring electrode in the plan view of the semiconductor layer, the first perimeter structure protruding upward of the semiconductor device and including the source electrode, the protective film, and the first wiring electrode that are stacked in stated order. A second perimeter structure is provided in a perimeter portion of the second wiring electrode in the plan view of the semiconductor layer, the second perimeter structure protruding upward of the semiconductor device and including the gate electrode, the protective film, and the second wiring electrode that are stacked in stated order.

IPC Classes  ?

  • H01L 23/31 - Encapsulation, e.g. encapsulating layers, coatings characterised by the arrangement
  • H10D 30/66 - Vertical DMOS [VDMOS] FETs
  • H10D 64/23 - Electrodes carrying the current to be rectified, amplified, oscillated or switched, e.g. sources, drains, anodes or cathodes
  • H10D 64/27 - Electrodes not carrying the current to be rectified, amplified, oscillated or switched, e.g. gates

88.

OBJECT DETECTION METHOD, RECORDING MEDIUM, AND OBJECT DETECTION SYSTEM

      
Application Number 19076604
Status Pending
Filing Date 2025-03-11
First Publication Date 2025-06-26
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Kanemaru, Masaki
  • Okuyama, Tetsuro
  • Kawai, Yoshinao

Abstract

An object detection method that includes: obtaining a first image and a second image including pixels corresponding one to one to pixels of the first image; performing a first recognition process that recognizes a type of a first object included in the first image; performing a second recognition process that recognizes a position of a second object included in the second image; and when a first region based on the first object in the first image and a second region based on the second object in the second image overlap each other, detecting the first object and the second object as a same object.

IPC Classes  ?

  • G06V 10/26 - Segmentation of patterns in the image fieldCutting or merging of image elements to establish the pattern region, e.g. clustering-based techniquesDetection of occlusion
  • G06V 10/70 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning
  • G06V 10/80 - Fusion, i.e. combining data from various sources at the sensor level, preprocessing level, feature extraction level or classification level
  • G06V 10/98 - Detection or correction of errors, e.g. by rescanning the pattern or by human interventionEvaluation of the quality of the acquired patterns

89.

BATTERY MANAGEMENT SYSTEM

      
Application Number JP2024041147
Publication Number 2025/134662
Status In Force
Filing Date 2024-11-20
Publication Date 2025-06-26
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor Kobayashi, Hitoshi

Abstract

A battery management system (5) for managing a battery pack (10) comprises: a monitoring circuit (100) which monitors the battery pack (10); and a management circuit (200) which is connected to the monitoring circuit (100) by wireless communication and manages the battery pack (10). Each of the monitoring circuit (100) and the management circuit (200) has a plurality of wireless communication units that use mutually different modulation schemes for wireless communication. The mutually different modulation schemes for wireless communication include a UWB (Ultra Wide Band) scheme.

IPC Classes  ?

  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
  • B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
  • B60L 58/10 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
  • H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
  • H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
  • H01Q 21/06 - Arrays of individually energised antenna units similarly polarised and spaced apart

90.

SOLID-STATE LASER DEVICE AND METHOD FOR MANUFACTURING SOLID-STATE LASER DEVICE

      
Application Number JP2024044485
Publication Number 2025/135001
Status In Force
Filing Date 2024-12-16
Publication Date 2025-06-26
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Saito, Junki
  • Yoshida, Shinji

Abstract

A solid-state laser device (100) is provided with: a light-emitting element (140) that emits first light (L1); a laser crystal (150) that absorbs the first light (L1) and emits second light (L2); a nonlinear optical crystal (160) that absorbs the second light (L2) and emits third light (L3); a second selective transmission mirror (120) that is disposed between the laser crystal (150) and the nonlinear optical crystal (160) and transmits the second light (L2); and a third selective transmission mirror (130) that is disposed on the optical axis of the third light (L3) and transmits the third light (L3). A first selective transmission mirror (110) reflects the second light (L2), the second selective transmission mirror (120) reflects the third light (L3), and the third selective transmission mirror (130) reflects the second light (L2). The second selective transmission mirror (120) and the third selective transmission mirror (130) are spaced apart from the nonlinear optical crystal.

IPC Classes  ?

  • H01S 3/108 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
  • G02F 1/37 - Non-linear optics for second-harmonic generation
  • H01S 3/16 - Solid materials
  • H01S 5/0239 - Combinations of electrical or optical elements
  • H01S 5/02325 - Mechanically integrated components on mount members or optical micro-benches

91.

SOLID-STATE IMAGING ELEMENT, DISTANCE IMAGING DEVICE, AND RANGING METHOD

      
Application Number JP2024043802
Publication Number 2025/127060
Status In Force
Filing Date 2024-12-11
Publication Date 2025-06-19
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Kosaka, Yasuhiro
  • Muroshima, Takahiro

Abstract

The present invention includes a pixel array (110) in which a plurality of pixels (120) including a plurality of first pixels and a plurality of second pixels are disposed in a two-dimensional manner, in which each of the plurality of first pixels is exposed to reflected light (L2) of irradiation light (L1) reflected by a target (2) on the basis of an exposure signal at a timing interlocking with a light-emission signal and generates a signal for distance detection, each of the plurality of second pixels generates a signal for phase-difference detection on the basis of light incident from a region in which the reflected light is pupil-split, the pixel array (110) includes one or more phase-difference detection regions (220) in which two or more second pixels of the plurality of second pixels are aligned along one direction, and at least some of the plurality of first pixels are, in the pixel array (110), disposed at positions different from the one or more phase-difference detection regions (220) and closer to a center of the pixel array (110) than at least one phase-difference detection region (220) of the one or more phase-difference detection regions (220).

IPC Classes  ?

  • H04N 25/704 - Pixels specially adapted for focusing, e.g. phase difference pixel sets
  • H04N 23/67 - Focus control based on electronic image sensor signals
  • H04N 25/705 - Pixels for depth measurement, e.g. RGBZ

92.

CURRENT MEASUREMENT-USE SEMICONDUCTOR DEVICE

      
Application Number JP2024041234
Publication Number 2025/126792
Status In Force
Filing Date 2024-11-21
Publication Date 2025-06-19
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor Kobayashi, Hitoshi

Abstract

A current measurement-use semiconductor device (30) is for measuring the current which flows through a shunt resistor (4) provided in a measurement target device (3), and comprises: a first current measurement circuit (10) that measures the current flowing through the shunt resistor (4) by detecting voltage at both ends of the shunt resistor (4); and a second current measurement circuit (20) that has a coreless magnetic sensor (50) and measures the current flowing through the shunt resistor (4) by using the coreless magnetic sensor (50).

IPC Classes  ?

  • G01R 15/00 - Details of measuring arrangements of the types provided for in groups , or
  • G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
  • G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
  • G01R 19/32 - Compensating for temperature change
  • G01R 35/02 - Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating

93.

IMAGING DEVICE AND DRIVING METHOD

      
Application Number JP2024043804
Publication Number 2025/127061
Status In Force
Filing Date 2024-12-11
Publication Date 2025-06-19
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Muroshima, Takahiro
  • Kosaka, Yasuhiro
  • Yamada, Toru

Abstract

This imaging device is provided with: a plurality of pixels which each have a photoelectric conversion unit for converting incident light into an electric charge and which each generate a signal based on the electric charge; and a drive control unit that exposes the plurality of pixels. The drive control unit exposes the plurality of pixels so that the plurality of pixels generate: one or more first signals for representing a first signal value corresponding to an electric charge that is obtained by conversion by the photoelectric conversion unit during a period of an exposure pulse (A1) starting at a timing based on a light emission pulse (L); and one or more second signals for representing a second signal value corresponding to an electric charge that is obtained by conversion by the photoelectric conversion unit during a period of an exposure pulse (A2) starting at a timing based on the light emission pulse (L). The exposure pulse (A2) starts, on the basis of the light emission pulse (L), with a prescribed time difference from the start of the exposure pulse (A1). A pulse width (Tp1) of the exposure pulse (A1) and a pulse width (Tp2) of the exposure pulse (A2) are equal to each other, and are each shorter than a pulse width (TpL) of the light emission pulse (L).

IPC Classes  ?

  • H04N 23/00 - Cameras or camera modules comprising electronic image sensorsControl thereof
  • G02B 7/40 - Systems for automatic generation of focusing signals using time delay of the reflected waves, e.g. of ultrasonic waves

94.

LEVEL SHIFT CIRCUIT AND LEVEL SHIFT METHOD

      
Application Number JP2024042628
Publication Number 2025/121299
Status In Force
Filing Date 2024-12-03
Publication Date 2025-06-12
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor Hayakawa, Shigeyuki

Abstract

A level shift circuit (10) comprises: an input circuit (12a) that converts one input signal generated by using a first voltage power supply (VDD_LV) as a power supply into a pair of complementary first signals (IN1 and N_IN1); a precharge circuit (14c) that outputs, from a first node (N_OUT) and a second node (OUT), a pair of second signals (N_OUT and OUT) corresponding to the complementary first signals (IN1 and N_IN1); a precharge control circuit (16a) that outputs a pair of third signals (OUT0 and N_OUT0) and controls the precharge circuit (14) on the basis of the second signals (N_OUT and OUT); and so forth, wherein the input circuit (12a) has a first phase matching circuit (13a) that matches the phases of the complementary first signals (IN1 and N_IN1).

IPC Classes  ?

  • H03K 19/0185 - Coupling arrangementsInterface arrangements using field-effect transistors only

95.

ARTIFICIAL INTELLIGENCE PROCESSING DEVICE AND WEIGHT COEFFICIENT WRITING METHOD FOR ARTIFICIAL INTELLIGENCE PROCESSING DEVICE

      
Application Number 19050821
Status Pending
Filing Date 2025-02-11
First Publication Date 2025-06-05
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Fujii, Satoru
  • Muraoka, Shunsaku
  • Morimoto, Masahiro
  • Awamura, Satoshi

Abstract

An artificial intelligence processing device includes: a substrate; an operation circuit such as a multiply-accumulate operation circuit, which includes a first variable-resistance nonvolatile storage element and a second variable-resistance nonvolatile storage element that are provided on the substrate and have a same structure and each of which holds conductance; and a write circuit that rewrites the conductance of the first variable-resistance nonvolatile storage element by applying a first voltage pulse having a first voltage to the first variable-resistance nonvolatile storage element, and rewrites the conductance of the second variable-resistance nonvolatile storage element by applying a second voltage pulse having a second voltage to the second variable-resistance nonvolatile storage element, the second voltage being different from the first voltage.

IPC Classes  ?

  • G11C 27/00 - Electric analogue stores, e.g. for storing instantaneous values
  • G06F 7/544 - Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state deviceMethods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using unspecified devices for evaluating functions by calculation
  • G06N 3/08 - Learning methods
  • H10B 63/00 - Resistance change memory devices, e.g. resistive RAM [ReRAM] devices

96.

METHOD FOR DRIVING SEMICONDUCTOR DEVICE, AND SEMICONDUCTOR DEVICE

      
Application Number JP2024042084
Publication Number 2025/115941
Status In Force
Filing Date 2024-11-28
Publication Date 2025-06-05
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor
  • Muraoka, Shunsaku
  • Morimoto, Masahiro

Abstract

This method for driving a semiconductor device (100) includes: a determination step (S10) for determining a lower limit for a target resistance value of a nonvolatile variable-resistance element (20); a measurement step (S11) for measuring the resistance value of the nonvolatile variable-resistance element (20); a determination step (S13) for determining whether the measured resistance value is lower than the lower limit for the target resistance value; and an application step (S21 and S23) for applying a second high-resistance voltage pulse that has a second energy greater than a first energy corresponding to application of a single cycle of a first high-resistance voltage pulse and imparts a positive potential to a second electrode (22) with reference to a first electrode (21), and a first low-resistance voltage pulse that continues after the second high-resistance voltage pulse, to the nonvolatile variable-resistance element (20) when it is determined that the measured resistance value is lower than the lower limit for the target resistance value.

IPC Classes  ?

  • G11C 13/00 - Digital stores characterised by the use of storage elements not covered by groups , , or
  • H10B 63/00 - Resistance change memory devices, e.g. resistive RAM [ReRAM] devices

97.

SEMICONDUCTOR MEMORY DEVICE

      
Application Number 19050828
Status Pending
Filing Date 2025-02-11
First Publication Date 2025-06-05
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor Mototani, Atsushi

Abstract

A semiconductor memory device includes: a first pull-down n-channel MOS transistor that includes: a drain connected to a word line; a source connected to a ground line; and a gate connected to a first node; a first series connection n-channel MOS transistor that includes: a drain connected to a power supply line; and a source connected to the first node; and a second series connection n-channel MOS transistor that includes: a drain connected to the first node; and a source connected to the ground line. The inverse-logic signal of a signal to be input to the gate of the second series connection n-channel MOS transistor is input to the gate of the first series connection n-channel MOS transistor.

IPC Classes  ?

  • G11C 11/418 - Address circuits
  • G11C 5/06 - Arrangements for interconnecting storage elements electrically, e.g. by wiring

98.

BANDGAP REFERENCE CIRCUIT AND SEMICONDUCTOR DEVICE

      
Application Number 19050831
Status Pending
Filing Date 2025-02-11
First Publication Date 2025-06-05
Owner
  • Nuvoton Technology Corporation Japan (Japan)
  • Nuvoton Technology Singapore Pte. Ltd. (Singapore)
Inventor
  • Ito, Kazuhito
  • Kobayashi, Hitoshi
  • Yamada, Michiko
  • Endo, Satoshi
  • Tang, Hong Meng

Abstract

A bandgap reference circuit includes: a diode characteristic element group; a dynamic element matching circuit that repeats, within a predetermined period, an operation of selecting, from the diode characteristic element group, a first diode characteristic element group including M diode characteristic elements connected in parallel and a second diode characteristic element group including N (≥M) diode characteristic elements connected in parallel, while changing a combination of the diode characteristic elements to be selected; a reference voltage generation circuit that generates a reference voltage based on a difference between a current density of current passing through the first diode characteristic element group and a current density of current passing through the second diode characteristic element group; and a second-order temperature coefficient adjustment circuit that adjusts a second-order temperature coefficient of the reference voltage generated.

IPC Classes  ?

  • G05F 3/30 - Regulators using the difference between the base-emitter voltages of two bipolar transistors operating at different current densities

99.

Semiconductor device and method for manufacturing semiconductor device

      
Application Number 19012337
Grant Number 12457764
Status In Force
Filing Date 2025-01-07
First Publication Date 2025-05-08
Grant Date 2025-10-28
Owner NUVOTON TECHNOLOGY CORPORATION JAPAN (Japan)
Inventor Kanda, Yusuke

Abstract

A semiconductor device includes: a Si substrate; a back electrode provided below the Si substrate; a SiC layer provided above the Si substrate; a nitride semiconductor layer provided above the SiC layer; a source electrode and a drain electrode provided above the nitride semiconductor layer; a gate electrode in contact with the nitride semiconductor layer; an intermediate layer provided in an opening that creates an opening in the SiC layer and the nitride semiconductor layer; a metal layer provided above the opening so as to cover the intermediate layer; and a conductor that is provided inside a through via that penetrates the intermediate layer and the Si substrate and is electrically connected with the back electrode and the metal layer. The intermediate layer is a metal nitride layer or a silicon oxide layer.

IPC Classes  ?

  • H10D 30/47 - FETs having zero-dimensional [0D], one-dimensional [1D] or two-dimensional [2D] charge carrier gas channels having 2D charge carrier gas channels, e.g. nanoribbon FETs or high electron mobility transistors [HEMT]
  • H10D 30/01 - Manufacture or treatment
  • H10D 62/832 - Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge being Group IV materials comprising two or more elements, e.g. SiGe
  • H10D 62/85 - Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group III-V materials, e.g. GaAs

100.

SEMICONDUCTOR DEVICE

      
Application Number 19020626
Status Pending
Filing Date 2025-01-14
First Publication Date 2025-05-08
Owner Nuvoton Technology Corporation Japan (Japan)
Inventor
  • Katsuda, Hiroto
  • Hirako, Masaaki
  • Imamura, Takeshi

Abstract

A semiconductor device includes a semiconductor layer. The entire length of an outer peripheral side among outer peripheral sides of a first gate electrode region and the entire length of an outer peripheral side among outer peripheral sides of a first resistance element region match a portion of an outer peripheral side, among outer peripheral sides of the semiconductor layer, that is orthogonal to a border line and has the shortest distance to a first gate pad. Among four corner portions of an outer periphery of the first gate electrode region, only one corner portion is included in the outer peripheral sides of the first resistance element region, the only one corner portion having the shortest distance to the border line and the shortest distance to an outer peripheral side, among the outer peripheral sides of the semiconductor layer, that is orthogonal to the border line.

IPC Classes  ?

  • H10D 89/60 - Integrated devices comprising arrangements for electrical or thermal protection, e.g. protection circuits against electrostatic discharge [ESD]
  • H10D 64/60 - Electrodes characterised by their materials
  • H10D 84/00 - Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
  • H10D 84/83 - Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups or , e.g. integration of IGFETs of only field-effect components of only insulated-gate FETs [IGFET]
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