Epistar Corporation

Taiwan, Province of China

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2026 July 1
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2026 (YTD) 11
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IPC Class
H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof 278
H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls 129
H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape 128
H01L 33/22 - Roughened surfaces, e.g. at the interface between epitaxial layers 93
H01L 33/46 - Reflective coating, e.g. dielectric Bragg reflector 81
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09 - Scientific and electric apparatus and instruments 4
42 - Scientific, technological and industrial services, research and design 3
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1.

SEMICONDUCTOR DEVICE AND DISPLAY DEVICE HAVING THE SAME

      
Application Number 19028245
Status Pending
Filing Date 2025-01-17
First Publication Date 2026-07-23
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chen, Jih-Kang
  • Hsiao, Po-Wen
  • Su, Ching-Hua
  • Ou, Chen

Abstract

A semiconductor device includes a semiconductor stack, a stack structure and a covering layer. The semiconductor stack is stacked along a stacking direction and includes an active region and a sidewall, wherein an angle between the sidewall and a reference plane perpendicular to the stacking direction is between 60 degrees and 90 degrees. The stack structure covers the semiconductor stack and has a crack on the sidewall. In addition, the covering layer covers the stack structure, thereby the crack on the sidewall is covered by the covering layer.

IPC Classes  ?

  • H10H 20/854 - Encapsulations characterised by their material, e.g. epoxy or silicone resins
  • H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
  • H10H 20/819 - Bodies characterised by their shape, e.g. curved or truncated substrates
  • H10H 20/841 - Reflective coatings, e.g. dielectric Bragg reflectors

2.

LIGHT-EMITTING DIODE AND MANUFACTURING METHOD THEREOF

      
Application Number 19448598
Status Pending
Filing Date 2026-01-14
First Publication Date 2026-05-21
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Yang, Jhih Yong
  • Wang, Hsin Ying
  • Kuo, De-Shan

Abstract

A light-emitting diode, includes a semiconductor stack having a first semiconductor layer, an active region, a second semiconductor layer and a first recess formed in the semiconductor stack, wherein the first recess includes a side wall and a bottom, and wherein the side wall includes side walls of the second semiconductor layer and the active region and the bottom includes an upper surface of the first semiconductor layer; a conductive layer, disposed on the semiconductor stack and electrically connecting the second semiconductor layer; an insulating layer, formed on the conductive layer, including: a first opening on the second semiconductor layer and surrounding the first recess in a plan view; and a first insulating island covering the first recess and on the conductive layer; a first electrode, formed on the insulating layer and electrically connected to the first semiconductor layer; and a second electrode, formed on the insulating layer and connected to the conductive layer through the first opening.

IPC Classes  ?

  • H10H 20/857 - Interconnections, e.g. lead-frames, bond wires or solder balls
  • H10H 20/01 - Manufacture or treatment
  • H10H 20/819 - Bodies characterised by their shape, e.g. curved or truncated substrates

3.

SEMICONDUCTOR PHOTO-DETECTING DEVICE

      
Application Number 19421283
Status Pending
Filing Date 2025-12-16
First Publication Date 2026-04-16
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Su, Chu-Jih
  • Chou, Chia-Hsiang
  • Peng, Wei-Chih
  • Liao, Wen-Luh
  • Huang, Chao-Shun
  • Lin, Hsuan-Le
  • Lee, Shih-Chang
  • Liu, Mei Chun
  • Ou, Chen

Abstract

A photo-detecting device includes a first semiconductor layer, a second semiconductor layer located on the first semiconductor layer, a light-absorbing layer located between the first semiconductor layer and the second semiconductor layer, and a first interface between the second semiconductor layer and the light-absorbing layer. The second semiconductor layer includes a first region having a first dopant and a second region surrounding the first region. The light-absorbing layer includes a third region having the first dopant and a fourth region surrounding the third region. The first dopant of the first region close to the first interface has a first doping concentration, and the first dopant of the third region close to the first interface has a second doping concentration larger than the first doping concentration.

IPC Classes  ?

  • H10F 77/45 - Wavelength conversion means, e.g. by using luminescent material, fluorescent concentrators or up-conversion arrangements
  • 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 55/00 - Radiation-sensitive semiconductor devices covered by groups , or being structurally associated with electric light sources and electrically or optically coupled thereto
  • H10F 77/124 - Active materials comprising only Group III-V materials, e.g. GaAs
  • H10F 77/20 - Electrodes
  • H10W 90/00 -

4.

LIGHT DETECTING DEVICE

      
Application Number 18900223
Status Pending
Filing Date 2024-09-27
First Publication Date 2026-04-02
Owner Epistar Corporation (Taiwan, Province of China)
Inventor
  • Chen, Wei-Long
  • Chen, I-Hung
  • Tsai, Chang Da
  • Huang, Chao-Shun
  • Su, Chu-Jih
  • Yen, Shao-Lung

Abstract

A light detecting device includes a first semiconductor layer, an absorption layer located on the first semiconductor layer, a second semiconductor layer located on the absorption layer, a filter structure located on the second semiconductor layer, an opening formed in the filter structure and an electrode structure disposed on the filter structure. The electrode structure connects the second semiconductor layer through the opening. The filter structure includes a plurality of first layers and a plurality of second layers which are alternately stacked, and the plurality of the first layers includes an uppermost first layer with a first refractive index and one of the plurality of second layers has a second refractive index larger than the first refractive index. The uppermost first layer is located between the electrode structure and the plurality of second layers and directly contacts the electrode structure.

IPC Classes  ?

  • H01L 27/146 - Imager structures
  • G01S 7/481 - Constructional features, e.g. arrangements of optical elements
  • G01S 17/04 - Systems determining the presence of a target
  • G02B 5/28 - Interference filters

5.

SEMICONDUCTOR EPITAXIAL STRUCTURE AND SEMICONDUCTOR DEVICE

      
Application Number 19345985
Status Pending
Filing Date 2025-09-30
First Publication Date 2026-04-02
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Lin, Yi-Chieh
  • Lee, Shih-Chang
  • Liu, Chia-Ming

Abstract

The present disclosure provides a semiconductor device including a first epitaxial stack and a first contact electrode. The first epitaxial stack includes a first semiconductor, a second semiconductor, and a first active region disposed between the first semiconductor structure and the second semiconductor structure. The first semiconductor structure includes a first capping layer having a first thickness. The second semiconductor structure includes a second capping layer having a second thickness larger than the first thickness. The first active region includes a light-emitting stack, a first confinement structure located between the light-emitting stack and the first capping layer, and a second confinement structure located between the light-emitting stack and the second capping layer. The first confinement structure has a third thickness, and the second confinement has a fourth thickness less than the third thickness. The first contact electrode is electrically connected to the first semiconductor structure.

IPC Classes  ?

  • H10H 20/84 - Coatings, e.g. passivation layers or antireflective coatings
  • H10H 20/816 - Bodies having carrier transport control structures, e.g. highly-doped semiconductor layers or current-blocking structures
  • H10H 29/24 - Assemblies of multiple devices comprising at least one light-emitting semiconductor device covered by group comprising multiple light-emitting semiconductor devices

6.

SEMICONDUCTOR DEVICE

      
Application Number 18821691
Status Pending
Filing Date 2024-08-30
First Publication Date 2026-03-05
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chen, Jih-Kang
  • Liao, Wei-Chun
  • Wei, Chia-Chieh

Abstract

The present disclosure provides a semiconductor device. The semiconductor device includes a semiconductor stack, a first conductive structure electrically connecting to the semiconductor stack, a first insulative structure covering the first conductive structure, and a first electrode structure electrically connecting to the first conductive structure. The semiconductor stack includes a first portion having a first upper surface, and a second portion connecting to the first portion and having a second upper surface and a first side surface connecting the first upper surface and the second upper surface. The first conductive structure covers the first upper surface, the second upper surface and the first side surface. The first electrode structure locates on the first portion.

IPC Classes  ?

  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape

7.

Light-emitting diode device

      
Application Number 29917855
Grant Number D1114750
Status In Force
Filing Date 2023-11-22
First Publication Date 2026-02-24
Grant Date 2026-02-24
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Ou, Chen
  • Chang, Li-Ming
  • Shen, Chien-Fu
  • Wang, Hsin-Ying

8.

Light-emitting diode device

      
Application Number 29917856
Grant Number D1113775
Status In Force
Filing Date 2023-11-22
First Publication Date 2026-02-17
Grant Date 2026-02-17
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Ou, Chen
  • Chang, Li-Ming
  • Shen, Chien-Fu
  • Wang, Hsin-Ying

9.

METHOD AND APPARATUS FOR TRANSFERRING ELECTRONIC DEVICES

      
Application Number 19285173
Status Pending
Filing Date 2025-07-30
First Publication Date 2026-02-05
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Hsiao, Chang-Tai
  • Peng, Cheng-Wei

Abstract

Some embodiments of the present disclosure discloses a method for transferring electronic devices. The method includes providing an electronic device array structure, a providing carrier, and a plurality of second electronic devices arranged on the providing carrier. Wherein the electronic device array structure includes a carrier and a flawed group arranged on the carrier. The flawed group includes a plurality of first electronic devices and a vacancy. A patterned light is formed to irradiate the providing carrier by using the electronic device array structure.

IPC Classes  ?

  • H10H 29/03 - Manufacture or treatment using mass transfer of LEDs, e.g. by using liquid suspensions
  • H01L 21/683 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping

10.

SEMICONDUCTOR DEVICE

      
Application Number 19265736
Status Pending
Filing Date 2025-07-10
First Publication Date 2026-01-15
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Peng, Wei-Chih
  • Chen, Yi-Ming
  • Wu, Chang-Hsiu
  • Chen, Chih-Yao
  • Wu, Zhe-Yuan
  • Kao, Jih-Chien
  • Hsu, Wei-Lun

Abstract

A semiconductor device includes a base, a semiconductor stack, a bonding structure, a contact structure, a conductive structure and a first through hole. The semiconductor stack includes a first semiconductor structure and a second semiconductor structure, and the first semiconductor structure locates between the second semiconductor structure and the base. The bonding structure is disposed between the base and the first semiconductor structure. The contact structure is disposed between the bonding structure and the first semiconductor structure, and is covered the contact structure. The first through hole penetrates the semiconductor stack and the contact structure to contact the conductive structure.

IPC Classes  ?

  • H10F 77/00 - Constructional details of devices covered by this subclass
  • H10F 19/40 - Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group , e.g. photovoltaic modules comprising photovoltaic cells in a mechanically stacked configuration
  • H10F 71/00 - Manufacture or treatment of devices covered by this subclass
  • H10F 77/124 - Active materials comprising only Group III-V materials, e.g. GaAs
  • H10F 77/42 - Optical elements or arrangements directly associated or integrated with photovoltaic cells, e.g. light-reflecting means or light-concentrating means

11.

SEMICONDUCTOR DEVICE

      
Application Number 19334149
Status Pending
Filing Date 2025-09-19
First Publication Date 2026-01-15
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Shen, Ching-Hsing
  • Liao, Wen-Luh
  • Ou, Chen
  • Lee, Shih-Chang
  • Kao, Hui-Fang
  • Chou, Yun-Chung

Abstract

The present disclosure provides a semiconductor device. The semiconductor device includes an epitaxial stack including a first semiconductor structure and a second semiconductor structure; a first contact on the first semiconductor structure; a first pad on the first contact; a connector between the first contact and the first pad, and including a first side surface; a first metal bump on the first pad and having a second side surface surrounding the first side surface; and a passivation structure covering the first side surface and contacting the first metal bump.

IPC Classes  ?

  • H10H 20/857 - Interconnections, e.g. lead-frames, bond wires or solder balls

12.

SEMICONDUCTOR DEVICE

      
Application Number 19217626
Status Pending
Filing Date 2025-05-23
First Publication Date 2025-11-27
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Lin, Yi-Chieh
  • Tsai, Yi Shan
  • Wang, Yi-Hung
  • Yeoh, Wei Shan
  • Hu, Dian-Ying
  • Lee, Shih-Chang

Abstract

A semiconductor device includes a base and a semiconductor stack located on the base. The semiconductor stack includes a first semiconductor structure adjacent to the base, a second semiconductor structure located on the first semiconductor structure, and a first active region located between the first semiconductor structure and the second semiconductor structure to emits a light with peak wavelength between 900 nm to 1000 nm. The first active region is undoped or unintentionally doped, and includes a first zone and a second zone located between the first zone and the first semiconductor structure. Each of the first zone and the second zone includes a pair of a first barrier layer and a first well layer, and the first well layer of the second zone has a thickness larger than that of the first well layer of the first zone.

IPC Classes  ?

  • H10H 20/812 - Bodies having quantum effect structures or superlattices, e.g. tunnel junctions within the light-emitting regions, e.g. having quantum confinement structures

13.

SEMICONDUCTOR DEVICE

      
Application Number 18674348
Status Pending
Filing Date 2024-05-24
First Publication Date 2025-11-27
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Lin, Yi-Chieh
  • Tsai, Yi Shan
  • Wang, Yi-Hung
  • Yeoh, Wei Shan

Abstract

A semiconductor device is provided, which includes a base, a semiconductor stack located on the base, and a first semiconductor layer located on the semiconductor stack. The semiconductor stack includes a first semiconductor structure adjacent to the base, a second semiconductor structure located on the first semiconductor structure, and a first active region located between the first semiconductor structure and the second semiconductor structure. The first semiconductor layer is located on the second semiconductor structure, and includes Alx1Ga1−x1As, where 0.005≤x1<0.2. And the first semiconductor structure has a second thickness in a range of 3 μm to 8 μm. The semiconductor device outputs a first power corresponding to a light with a wavelength equal to or larger than 900 nm and less than 1100 nm, and a second power corresponding to a light with a wavelength less than 900 nm and larger than 700 nm. A ratio of the second power to a sum of the first power and the second power is equal to or less than 30%.

IPC Classes  ?

  • H01L 33/06 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a quantum effect structure or superlattice, e.g. tunnel junction within the light emitting region, e.g. quantum confinement structure or tunnel barrier
  • H01L 31/02 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof - Details
  • H01L 31/0203 - Containers; Encapsulations
  • H01L 31/0224 - Electrodes
  • H01L 31/0232 - Optical elements or arrangements associated with the device
  • H01L 31/0236 - Special surface textures
  • H01L 31/0304 - Inorganic materials including, apart from doping materials or other impurities, only AIIIBV compounds
  • H01L 31/0352 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
  • H01L 33/02 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies
  • H01L 33/22 - Roughened surfaces, e.g. at the interface between epitaxial layers
  • H01L 33/30 - Materials of the light emitting region containing only elements of group III and group V of the periodic system
  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/46 - Reflective coating, e.g. dielectric Bragg reflector
  • H01L 33/52 - Encapsulations
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls

14.

SEMICONDUCTOR DEVICE

      
Application Number 18655996
Status Pending
Filing Date 2024-05-06
First Publication Date 2025-11-06
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Huang, Chong-Ming
  • Lin, Yung-Hsiang
  • Wu, Shiu-Han

Abstract

A semiconductor device is provided. The semiconductor device includes a first semiconductor structure, a second semiconductor structure on the first semiconductor structure and an active structure between the first semiconductor structure and the second semiconductor structure. The first semiconductor structure includes a first waveguiding layer having a first band gap, and a first interlayer directly contacting the first waveguiding layer and having a first thickness and a second bandgap lager than the first band gap. The first thickness is 5 nm-35 nm.

IPC Classes  ?

  • H01S 5/11 - Comprising a photonic bandgap structure
  • H01S 5/20 - Structure or shape of the semiconductor body to guide the optical wave
  • H01S 5/30 - Structure or shape of the active regionMaterials used for the active region
  • 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

15.

SEMICONDUCTOR DEVICE

      
Application Number 19242175
Status Pending
Filing Date 2025-06-18
First Publication Date 2025-10-09
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Lin, Chun-Yu
  • Li, Jun-Yi
  • Chiu, Yi-Yang
  • Chang, Chun-Wei
  • Chen, Yi-Ming
  • Wu, Chang-Hsiu
  • Liao, Wen-Luh
  • Ou, Chen
  • Jheng, Wei-Wun

Abstract

A semiconductor device includes a semiconductor stack, a third semiconductor structure, a dielectric layer, and an extension electrode. The semiconductor stack includes a first semiconductor structure, an active structure, and a second semiconductor structure stacked in sequence along a vertical direction. The third semiconductor structure connects to the first semiconductor structure and includes a first part. The dielectric layer connects to the first semiconductor structure and includes an opening corresponding to the first part. The extension electrode connects to the second semiconductor structure without overlapping with the third semiconductor 10 structure in the vertical direction. The first part has a near electrode end and a far electrode end opposite to the near electrode end, and a distance from the far electrode end to the opening is smaller than a distance from the near electrode end to the opening.

IPC Classes  ?

  • H10H 20/832 - Electrodes characterised by their material
  • H10H 20/82 - Roughened surfaces, e.g. at the interface between epitaxial layers
  • H10H 20/831 - Electrodes characterised by their shape
  • H10H 20/833 - Transparent materials
  • H10H 20/84 - Coatings, e.g. passivation layers or antireflective coatings

16.

LIGHT-EMITTING DEVICE

      
Application Number 19207016
Status Pending
Filing Date 2025-05-13
First Publication Date 2025-08-28
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Hsieh, Min-Hsun
  • Liao, Shih-An

Abstract

A light-emitting device includes a carrier, a light-emitting unit disposed on the carrier, a reflective element arranged on the light-emitting unit, and an optical element arranged on the carrier and surrounding the light-emitting unit.

IPC Classes  ?

  • H10H 20/856 - Reflecting means
  • H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
  • H10H 20/814 - Bodies having reflecting means, e.g. semiconductor Bragg reflectors
  • H10H 20/831 - Electrodes characterised by their shape
  • H10H 20/851 - Wavelength conversion means
  • H10H 20/853 - Encapsulations characterised by their shape
  • H10H 20/857 - Interconnections, e.g. lead-frames, bond wires or solder balls

17.

SEMICONDUCTOR LIGHT-EMITTING DEVICE AND SEMICONDUCTOR LIGHT-EMITTING COMPONENT

      
Application Number 19031651
Status Pending
Filing Date 2025-01-18
First Publication Date 2025-05-22
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chen, Jian-Zhi
  • Tseng, Yen-Chun
  • Kao, Hui-Fang
  • Chan, Yao-Ning
  • Lai, Yi-Tang
  • Chou, Yun-Chung
  • Lee, Shih-Chang
  • Ou, Chen

Abstract

The present disclosure provides a semiconductor light-emitting device. The semiconductor light-emitting device includes a first semiconductor contact layer, a semiconductor light-emitting stack, a first-conductivity-type contact structure, a second semiconductor contact layer, a second-conductivity-type contact structure, a first electrode pad and a second electrode pad. The semiconductor light-emitting stack is located on the first semiconductor contact layer and comprising an active layer. The first-conductivity-type contact structure is located on the first semiconductor contact layer. The second semiconductor contact layer is located on the semiconductor light-emitting stack. The second-conductivity-type contact structure is located on the semiconductor light-emitting stack and electrically connected to the second semiconductor contact layer. The first electrode pad is located on the first-conductivity-type contact structure. The second electrode pad is located on the second-conductivity-type contact structure. The second-conductivity-type contact structure includes a bonding portion, an extension portion, and a connection portion.

IPC Classes  ?

  • H10H 20/83 - Electrodes
  • H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
  • H10H 20/819 - Bodies characterised by their shape, e.g. curved or truncated substrates
  • H10H 20/824 - Materials of the light-emitting regions comprising only Group III-V materials, e.g. GaP
  • 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 20/841 - Reflective coatings, e.g. dielectric Bragg reflectors

18.

SEMICONDUCTOR DEVICE

      
Application Number 18899846
Status Pending
Filing Date 2024-09-27
First Publication Date 2025-04-03
Owner Epistar Corporation (Taiwan, Province of China)
Inventor
  • Pan, Po-Chou
  • Ou, Chen
  • Lee, Shih-Chang
  • Peng, Wei-Chih
  • Chang, Yao-Ru
  • Liang, Hao-Chun

Abstract

An embodiment of the present disclosure provides a semiconductor device. The semiconductor device has a first semiconductor structure; a second semiconductor structure on the first semiconductor structure and having a first aluminum content; a plurality of voids in the second semiconductor structure; an active structure between the first semiconductor structure and the second semiconductor structure; and a third semiconductor structure between the active structure and the second semiconductor structure, and having a second aluminum content. The first aluminum content is greater than the second aluminum content.

IPC Classes  ?

19.

SEMICONDUCTOR DEVICE

      
Application Number 18799505
Status Pending
Filing Date 2024-08-09
First Publication Date 2025-02-13
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Feng, Tzu Yun
  • Yeoh, Wei Shan
  • Chan, Yao-Ning
  • Kuo, June

Abstract

A semiconductor device includes a semiconductor stack, an insulating structure, a metal oxide structure and a metal structure. The semiconductor stack includes a first semiconductor structure, a second semiconductor structure and an active structure located between the first semiconductor structure and the second semiconductor structure. The insulating structure is disposed below the first semiconductor structure and comprising a first opening and a second opening. The metal oxide structure is disposed below the insulating structure and located in the first opening, and contacts the semiconductor stack to form a first contact surface therebetween. The metal structure is located in the second opening, and contacts the semiconductor stack to form a second contact surface therebetween. The first contact surface is separated from the second contact surface.

IPC Classes  ?

  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/22 - Roughened surfaces, e.g. at the interface between epitaxial layers
  • H01L 33/40 - Materials therefor
  • H01L 33/44 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the coatings, e.g. passivation layer or anti-reflective coating
  • H01L 33/50 - Wavelength conversion elements
  • H01L 33/52 - Encapsulations
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 33/64 - Heat extraction or cooling elements

20.

Light-emitting device

      
Application Number 29858208
Grant Number D1062026
Status In Force
Filing Date 2022-10-28
First Publication Date 2025-02-11
Grant Date 2025-02-11
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Kao, Hui-Fang
  • Chan, Yao-Ning
  • Lai, Yi-Tang
  • Chou, Yun-Chung
  • Lee, Shih-Chang
  • Ou, Chen

21.

LIGHT-EMITTING DEVICE

      
Application Number 18815298
Status Pending
Filing Date 2024-08-26
First Publication Date 2024-12-19
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Wang, Chung-Hao
  • Wang, Yu-Chi
  • Chen, Yi-Ming
  • Chiu, Yi-Yang
  • Lin, Chun-Yu

Abstract

An optoelectronic semiconductor device includes a substrate, a first type semiconductor structure located on the substrate, a second type semiconductor structure located on the first type semiconductor structure, an active structure located between the first type semiconductor structure and the second type semiconductor structure, a plurality of contact portions disposed between the first type semiconductor structure and the substrate, and a first conductive oxide layer, a second conductive oxide layer, a first insulating layer and a second insulating layer. The plurality of contact portions is separated from each other, and one of them includes a semiconductor and has a side wall. The first conductive oxide layer contacts the contact portion, and the second conductive oxide layer contacts the first conductive oxide layer. The first insulating layer contacts the side wall. The second insulating layer is disposed between the first insulating layer and the second conductive oxide layer.

IPC Classes  ?

  • H01L 33/20 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 33/22 - Roughened surfaces, e.g. at the interface between epitaxial layers
  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/46 - Reflective coating, e.g. dielectric Bragg reflector

22.

OPTOELECTRONIC SYSTEM

      
Application Number 18821674
Status Pending
Filing Date 2024-08-30
First Publication Date 2024-12-19
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Hsieh, Min-Hsun
  • Han, Cheng-Nan
  • Hong, Steve Meng-Yuan
  • Liu, Hsin-Mao
  • Lee, Tsung-Xian

Abstract

An optoelectronic system having a first optoelectronic element with a first surface; a second optoelectronic element with a second surface; an IC, with a third surface coplanar with the first surface and the second surface; an electrical connection, electrically connecting the first optoelectronic element and the IC; and a material, surrounding the first optoelectronic element, the second optoelectronic element, and the IC, and exposing the first surface, the second surface, and the third surface.

IPC Classes  ?

  • H01L 33/50 - Wavelength conversion elements
  • H01L 21/683 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping
  • H01L 23/00 - Details of semiconductor or other solid state devices
  • H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/40 - Materials therefor
  • H01L 33/48 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor body packages
  • H01L 33/56 - Materials, e.g. epoxy or silicone resin

23.

SEMICONDUCTOR DEVICE

      
Application Number 18677007
Status Pending
Filing Date 2024-05-29
First Publication Date 2024-12-05
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor Ling, Shih-Chun

Abstract

A semiconductor device includes a substrate, an epitaxial structure and a first interlayer. The substrate has an upper surface and a bottom surface. The epitaxial structure is on the upper surface and includes an active structure. The first interlayer is on the bottom surface and includes M1x1Ny1. M1 is metal and N is nitrogen, and x1>y1.

IPC Classes  ?

  • H01S 5/042 - Electrical excitation
  • H01S 5/02212 - Can-type, e.g. TO-CAN housings with emission along or parallel to symmetry axis
  • H01S 5/223 - Buried stripe structure

24.

LIGHT-EMITTING DEVICE, MANUFACTURING METHOD THEREOF AND DISPLAY MODULE USING THE SAME

      
Application Number 18798449
Status Pending
Filing Date 2024-08-08
First Publication Date 2024-12-05
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Hsieh, Min-Hsun
  • Chen, Shau-Yi
  • Deng, Shao-You

Abstract

A light-emitting device includes a carrier, a light-emitting element and a connection structure. The carrier includes a first electrical conduction portion. The light-emitting element includes a first light-emitting layer capable of emitting first light and a first contact electrode formed under the light-emitting layer. The first contact electrode is corresponded to the first electrical conduction portion. The connection structure includes a first electrical connection portion and a protective portion surrounding the first contact electrode and the first electrical connection portion. The first electrical connection portion includes an upper portion, a lower portion and a neck portion arranged between the upper portion and the lower portion. An edge of the upper portion is protruded beyond the neck portion, and an edge of the lower portion is protruded beyond the upper portion.

IPC Classes  ?

  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group

25.

LIGHT-EMITTING DEVICE WITH REFLECTIVE LAYER

      
Application Number 18789312
Status Pending
Filing Date 2024-07-30
First Publication Date 2024-11-28
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chen, Chao-Hsing
  • Wang, Jia-Kuen
  • Chuang, Wen-Hung
  • Tseng, Tzu-Yao
  • Lu, Cheng-Lin

Abstract

A light-emitting device includes a semiconductor structure including a first semiconductor layer, a second semiconductor layer on the first semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, wherein the second semiconductor layer includes a first edge; a reflective structure located on the second semiconductor layer and including an outer edge; a first electrode pad located on the reflective structure, wherein the first electrode pad including an outer side wall adjacent to the outer edge, wherein the outer edge extends beyond the outer side wall and does not exceed the first edge in a cross-sectional view of the light-emitting device.

IPC Classes  ?

  • H01L 33/40 - Materials therefor
  • F21K 9/23 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
  • F21K 9/232 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
  • F21K 9/69 - Details of refractors forming part of the light source
  • F21Y 115/10 - Light-emitting diodes [LED]
  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 33/06 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a quantum effect structure or superlattice, e.g. tunnel junction within the light emitting region, e.g. quantum confinement structure or tunnel barrier
  • H01L 33/12 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a stress relaxation structure, e.g. buffer layer
  • H01L 33/22 - Roughened surfaces, e.g. at the interface between epitaxial layers
  • H01L 33/32 - Materials of the light emitting region containing only elements of group III and group V of the periodic system containing nitrogen
  • H01L 33/42 - Transparent materials
  • H01L 33/46 - Reflective coating, e.g. dielectric Bragg reflector
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls

26.

PHOTO-DETECTING DEVICE

      
Application Number 18584699
Status Pending
Filing Date 2024-02-22
First Publication Date 2024-08-29
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Tsai, Chang Da
  • Chen, I-Hung
  • Su, Yu Cheng

Abstract

A light-detecting device includes a base, a first absorption layer, a second absorption layer and a first semiconductor layer. The first absorption layer is located on the base and has a first band gap. The second absorption layer is located between the first absorption layer and the base and has a second band gap and a first dopant. The first semiconductor layer is located between the first absorption layer and the second absorption layer and has a third band gap. The second band gap is equal to or greater than the first band gap, and a third band gap greater than the first band gap and the second band gap. The first absorption layer does not include the first dopant.

IPC Classes  ?

  • H01L 31/109 - Devices sensitive to infrared, visible or ultraviolet radiation characterised by only one potential barrier or surface barrier the potential barrier being of the PN heterojunction type
  • H01L 31/0203 - Containers; Encapsulations
  • H01L 31/0216 - Coatings
  • H01L 31/0304 - Inorganic materials including, apart from doping materials or other impurities, only AIIIBV compounds
  • H01L 31/173 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the semiconductor device sensitive to radiation being controlled by the light source or sources the light sources and the devices sensitive to radiation all being semiconductor devices characterised by at least one potential or surface barrier formed in, or on, a common substrate

27.

Light-emitting diode device

      
Application Number 29915273
Grant Number D1040117
Status In Force
Filing Date 2023-10-27
First Publication Date 2024-08-27
Grant Date 2024-08-27
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chan, Yao-Ning
  • Feng, Tzu-Yun
  • Chang, Yun-Ya

28.

Semiconductor light-emitting device

      
Application Number 18401106
Grant Number 12166156
Status In Force
Filing Date 2023-12-29
First Publication Date 2024-07-11
Grant Date 2024-12-10
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chen, Chao-Hsing
  • Wang, Jia-Kuen
  • Tseng, Tzu-Yao
  • Chiang, Tsung-Hsun
  • Hu, Bo-Jiun
  • Chuang, Wen-Hung
  • Lin, Yu-Ling

Abstract

A semiconductor light-emitting device includes a semiconductor stack including a first semiconductor layer and a second semiconductor layer; a first reflective layer formed on the first semiconductor layer and including a plurality of vias; a plurality of contact structures respectively filled in the vias and electrically connected to the first semiconductor layer; a second reflective layer including metal material formed on the first reflective layer and contacting the contact structures; a plurality of conductive vias surrounded by the semiconductor stack; a connecting layer formed in the conductive vias and electrically connected to the second semiconductor layer; a first pad portion electrically connected to the second semiconductor layer; and a second pad portion electrically connected to the first semiconductor layer, wherein a shortest distance between two of the conductive vias is larger than a shortest distance between the first pad portion and the second pad portion.

IPC Classes  ?

  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 33/02 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies
  • H01L 33/08 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a plurality of light emitting regions, e.g. laterally discontinuous light emitting layer or photoluminescent region integrated within the semiconductor body
  • H01L 33/10 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a light reflecting structure, e.g. semiconductor Bragg reflector
  • H01L 33/22 - Roughened surfaces, e.g. at the interface between epitaxial layers
  • H01L 33/24 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate of the light emitting region, e.g. non-planar junction
  • H01L 33/40 - Materials therefor
  • H01L 33/42 - Transparent materials
  • H01L 33/44 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the coatings, e.g. passivation layer or anti-reflective coating
  • H01L 33/46 - Reflective coating, e.g. dielectric Bragg reflector
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls

29.

Semiconductor photo-detecting device

      
Application Number 18608216
Grant Number 12514027
Status In Force
Filing Date 2024-03-18
First Publication Date 2024-07-04
Grant Date 2025-12-30
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Su, Chu-Jih
  • Chou, Chia-Hsiang
  • Peng, Wei-Chih
  • Liao, Wen-Luh
  • Huang, Chao-Shun
  • Lin, Hsuan-Le
  • Lee, Shih-Chang
  • Liu, Mei Chun
  • Ou, Chen

Abstract

A photo-detecting device includes a first semiconductor layer, a second semiconductor layer located on the first semiconductor layer, a light-absorbing layer located between the first semiconductor layer and the second semiconductor layer, an insulating layer located on the second semiconductor layer, and an electrode structure located on the insulating layer. The second semiconductor layer includes a first region having a first conductivity-type and a second region having a second conductivity-type different from the first conductivity-type. The first region is surrounded by the second region, and includes a geometric center and an interface between the first region and the second region. The insulating layer covers the first region and the second region. The electrode structure includes an outer sidewall located on the second region. In a top view, the interface is located between the geometric center and the outer sidewall.

IPC Classes  ?

  • H10F 77/45 - Wavelength conversion means, e.g. by using luminescent material, fluorescent concentrators or up-conversion arrangements
  • H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
  • 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 55/00 - Radiation-sensitive semiconductor devices covered by groups , or being structurally associated with electric light sources and electrically or optically coupled thereto
  • H10F 77/124 - Active materials comprising only Group III-V materials, e.g. GaAs
  • H10F 77/20 - Electrodes

30.

Light-emitting device

      
Application Number 18442843
Grant Number 12283606
Status In Force
Filing Date 2024-02-15
First Publication Date 2024-06-13
Grant Date 2025-04-22
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chen, Chao-Hsing
  • Ma, I-Lun
  • Hu, Bo-Jiun
  • Lin, Yu-Ling
  • Liao, Chien-Chih

Abstract

A light-emitting device comprises a substrate; a first light-emitting unit and a second light-emitting unit formed on the substrate, each of the first light-emitting unit and the second light-emitting unit comprises a first semiconductor layer, a second semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, wherein the first light-emitting unit comprises a first semiconductor mesa and a first surrounding part surrounding the first semiconductor mesa, and the second light-emitting unit comprises a second semiconductor mesa and a second surrounding part surrounding the second semiconductor mesa; a trench formed between the first light-emitting unit and the second light-emitting unit and exposing the substrate; a first insulating layer comprising a first opening on the first surrounding part and a second opening on the second semiconductor layer of the second light-emitting unit; and a connecting electrode comprising a first connecting part on the first light-emitting unit and connected to the first semiconductor layer formed in the first opening, a second connecting part on the second light-emitting unit and connected to the second semiconductor layer of the second light-emitting unit, and a third connecting part formed in the trench to connect the first connecting part and the second connecting part.

IPC Classes  ?

  • H01L 27/15 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier, specially adapted for light emission
  • H01L 33/24 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate of the light emitting region, e.g. non-planar junction
  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/46 - Reflective coating, e.g. dielectric Bragg reflector
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 33/12 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a stress relaxation structure, e.g. buffer layer
  • H01L 33/30 - Materials of the light emitting region containing only elements of group III and group V of the periodic system
  • H01L 33/42 - Transparent materials

31.

METHOD OF MANUFACTURING A LIGHT-EMITTING DEVICE

      
Application Number 18439378
Status Pending
Filing Date 2024-02-12
First Publication Date 2024-06-06
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Huang, Chien-Fu
  • Lu, Chih-Chiang
  • Lin, Chun-Yu
  • Chiu, Hsin-Chih

Abstract

The present disclosure provides a light-emitting device comprising a substrate with a topmost surface; a first semiconductor stack arranged on the substrate, and comprising a first top surface separated from the topmost surface by a first distance; a first bonding layer arranged between the substrate and the first semiconductor stack; a second semiconductor stack arranged on the substrate, and comprising a second top surface separated from the topmost surface by a second distance which is different form the first distance; a second bonding layer arranged between the substrate and the second semiconductor stack; a third semiconductor stack arranged on the substrate, and comprising third top surface separated from the topmost surface by a third distance; and a third bonding layer arranged between the substrate and the third semiconductor stack; wherein the first semiconductor stack, the second semiconductor stack, and the third semiconductor stack are configured to emit different color lights.

IPC Classes  ?

  • H01L 33/02 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies
  • H01L 21/66 - Testing or measuring during manufacture or treatment
  • H01L 23/00 - Details of semiconductor or other solid state devices
  • H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
  • H01L 33/36 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls

32.

Method of selectively transferring semiconductor device

      
Application Number 18440306
Grant Number 12369431
Status In Force
Filing Date 2024-02-13
First Publication Date 2024-06-06
Grant Date 2025-07-22
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Ku, Hao-Min
  • Chang, You-Hsien
  • Chen, Shih-I
  • Tsai, Fu-Chun
  • Chiu, Hsin-Chih

Abstract

A semiconductor structure includes a substrate, an adhesion layer, arranged on the substrate, a first release layer, arranged on the adhesion layer and a first semiconductor device, including a semiconductor epitaxial stack, and a conducting structure directly connected to the first release layer. The first semiconductor device is not electrically connected to the substrate by the adhesion layer and the first release layer.

IPC Classes  ?

  • H10H 20/01 - Manufacture or treatment
  • H01L 21/683 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping
  • H10H 20/857 - Interconnections, e.g. lead-frames, bond wires or solder balls

33.

Optoelectronic device and method for manufacturing the same

      
Application Number 18410823
Grant Number 12218279
Status In Force
Filing Date 2024-01-11
First Publication Date 2024-05-09
Grant Date 2025-02-04
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chen, Chao-Hsing
  • Wang, Jia-Kuen
  • Liao, Chien-Chih
  • Tseng, Tzu-Yao
  • Ko, Tsun-Kai
  • Shen, Chien-Fu

Abstract

An optoelectronic device includes a first semiconductor layer, a second semiconductor layer and an active layer between the first semiconductor layer and the second semiconductor layer; a first insulating layer on the second semiconductor layer and including a plurality of first openings exposing the first semiconductor layer, wherein the first openings include a first group and a second group; a third electrode on the first insulating layer and including a first extended portion and a second extended portion, wherein the first extended portion and the second extended portion are respectively electrically connected to the first semiconductor layer through the first group of the first openings and the second group of the first openings, and wherein the number of the first group of the first openings is different from the number of the second group of the first openings; and a plurality of fourth electrodes on the second insulating layer and electrically connected to the second semiconductor layer, wherein in a top view of the optoelectronic device, the first extended portion is located between the fourth electrodes.

IPC Classes  ?

  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/40 - Materials therefor

34.

SEMICONDUCTOR DEVICE

      
Application Number 18494018
Status Pending
Filing Date 2023-10-25
First Publication Date 2024-05-02
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Ling, Shih-Chun
  • Lee, Wan-Jung

Abstract

A semiconductor device is provided. The semiconductor device includes a substrate and a stack structure. The substrate includes a first upper region, a second upper region, a third upper region and a fourth upper region. The stack structure locates on the fourth upper region of the substrate without overlapping the first upper region, the second upper region and the third upper region. The stack structure includes a first end face, a top surface, a first semiconductor layer, an active region, and a second semiconductor layer. The second semiconductor layer includes a ridge structure. The first upper region is closer to the light emitting end face than the second upper region is. The semiconductor device has a first depth between the top surface and the first upper region, and a second depth between the top surface and the second upper region smaller than the first depth.

IPC Classes  ?

  • H01S 5/22 - Structure or shape of the semiconductor body to guide the optical wave having a ridge or a stripe structure
  • B23K 26/38 - Removing material by boring or cutting
  • H01S 5/10 - Construction or shape of the optical resonator

35.

LIGHT-EMITTING ELEMENT AND MANUFACTURING METHOD THEREOF

      
Application Number 18545746
Status Pending
Filing Date 2023-12-19
First Publication Date 2024-04-25
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Lin, Che-Hung
  • Kuo, De-Shan

Abstract

A method of manufacturing a light-emitting element, includes: providing a base having an upper surface and a lower surface; forming a semiconductor stack on the upper surface; removing part of the semiconductor stack to form a pre-defined dicing region surrounding the semiconductor stack; forming a dielectric stack covering the semiconductor stack and the pre-defined dicing region; and applying a first laser having a first wavelength to irradiate the base along the pre-defined dicing region; wherein the dielectric stack has a reflectance of 10%-50% and/or a transmittance of 50%-90% for the first wavelength.

IPC Classes  ?

  • H01L 33/08 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a plurality of light emitting regions, e.g. laterally discontinuous light emitting layer or photoluminescent region integrated within the semiconductor body
  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 33/22 - Roughened surfaces, e.g. at the interface between epitaxial layers
  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls

36.

OPTICAL SENSING DEVICE AND OPTICAL SENSING SYSTEM THEREOF

      
Application Number 18391644
Status Pending
Filing Date 2023-12-20
First Publication Date 2024-04-25
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Lin, Yi-Chieh
  • Lin, Shiuan-Leh
  • Chang, Yung-Fu
  • Lee, Shih-Chang
  • Hsu, Chia-Liang
  • Hsiao, Yi
  • Liao, Wen-Luh
  • Shih, Hong-Chi
  • Liu, Mei-Chun

Abstract

This disclosure discloses an optical sensing device. The device includes a carrier body; a first light-emitting device disposed on the carrier body; and a light-receiving device including a group III-V semiconductor material disposed on the carrier body, including a light-receiving surface having an area, wherein the light-receiving device is capable of receiving a first received wavelength having a largest external quantum efficiency so the ratio of the largest external quantum efficiency to the area is ≥13.

IPC Classes  ?

  • H01L 31/167 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the semiconductor device sensitive to radiation being controlled by the light source or sources the light sources and the devices sensitive to radiation all being semiconductor devices characterised by at least one potential or surface barrier
  • A61B 5/021 - Measuring pressure in heart or blood vessels
  • A61B 5/024 - Measuring pulse rate or heart rate
  • A61B 5/145 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value
  • A61B 5/1455 - Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value using optical sensors, e.g. spectral photometrical oximeters
  • G01J 3/10 - Arrangements of light sources specially adapted for spectrometry or colorimetry
  • H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
  • H01L 31/02 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof - Details
  • H01L 31/0232 - Optical elements or arrangements associated with the device
  • H01L 31/0304 - Inorganic materials including, apart from doping materials or other impurities, only AIIIBV compounds

37.

PIXEL UNIT AND DISPLAY APPARATUS APPLYING THE SAME

      
Application Number 18235458
Status Pending
Filing Date 2023-08-18
First Publication Date 2024-02-22
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Deng, Shao-You
  • Lin, Yung-Hsin
  • Chen, Yu-Yun

Abstract

A pixel unit includes a thin film circuit unit and a light emitting device. The thin film circuit unit includes a first driving device having a first terminal, a second terminal, and a control terminal. The first terminal can receive a first signal. The control terminal can receive a second signal to control on/off of the first driving device for allowing the first signal transmitted to the second terminal. The light emitting device includes a plurality of light-emitting elements connected in series and connected to the second terminal, wherein a total voltage of the plurality of light-emitting elements is not less than 1/3 of a saturation voltage of the first driving device.

IPC Classes  ?

  • H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits

38.

Semiconductor light emitting device and method of fabricating the same

      
Application Number 18488637
Grant Number 12471412
Status In Force
Filing Date 2023-10-17
First Publication Date 2024-02-08
Grant Date 2025-11-11
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chiu, Hsin-Chih
  • Lu, Chih-Chiang
  • Lin, Chun-Yu
  • Ni, Ching-Huai
  • Chen, Yi-Ming
  • Hsu, Tzu-Chieh
  • Lin, Ching-Pei

Abstract

A semiconductor light-emitting device comprises a substrate; a first adhesive layer on the substrate; multiple epitaxial units on the first adhesive layer; a second adhesive layer on the multiple epitaxial units; multiple first electrodes between the first adhesive layer and the multiple epitaxial units, and contacting the first adhesive layer and the multiple epitaxial units; and multiple second electrodes between the second adhesive layer and the multiple epitaxial units, and contacting the second adhesive layer and the multiple epitaxial units; wherein the multiple epitaxial units are totally separated.

IPC Classes  ?

  • H10H 20/811 - Bodies having quantum effect structures or superlattices, e.g. tunnel junctions
  • H01L 21/00 - Processes or apparatus specially adapted for the manufacture or treatment of semiconductor or solid-state devices, or of parts thereof
  • H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
  • H10H 20/01 - Manufacture or treatment
  • H10H 20/82 - Roughened surfaces, e.g. at the interface between epitaxial layers
  • H10H 20/824 - Materials of the light-emitting regions comprising only Group III-V materials, e.g. GaP
  • H10H 20/831 - Electrodes characterised by their shape
  • H10H 20/841 - Reflective coatings, e.g. dielectric Bragg reflectors
  • H10H 20/857 - Interconnections, e.g. lead-frames, bond wires or solder balls

39.

Light-emitting diode device

      
Application Number 29758799
Grant Number D1012330
Status In Force
Filing Date 2020-11-18
First Publication Date 2024-01-23
Grant Date 2024-01-23
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Ou, Chen
  • Chang, Li-Ming
  • Shen, Chien-Fu
  • Wang, Hsin-Ying

40.

Light-emitting device

      
Application Number 18465733
Grant Number 12132073
Status In Force
Filing Date 2023-09-12
First Publication Date 2023-12-28
Grant Date 2024-10-29
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Hsieh, Min Hsun
  • Liu, Hsin-Mao

Abstract

A light-emitting module including a first optoelectronic unit having a first electrode pad and a second electrode pad, a second optoelectronic unit having a third electrode pad and a fourth electrode pad, a first supporting structure enclosing the first optoelectronic unit and the second optoelectronic unit, a first pin overlapping and confronted with both of the first electrode pad and the third electrode pad, a second pin overlapping the second electrode pad and the first supporting structure, and a third pin overlapping the fourth electrode pad and physically separated from the second pin.

IPC Classes  ?

  • H01L 31/12 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto
  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
  • H01L 27/15 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier, specially adapted for light emission
  • H01L 33/48 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor body packages
  • H01L 33/50 - Wavelength conversion elements
  • H01L 33/56 - Materials, e.g. epoxy or silicone resin
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/44 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the coatings, e.g. passivation layer or anti-reflective coating

41.

Light-emitting diode device

      
Application Number 29822281
Grant Number D1008198
Status In Force
Filing Date 2022-01-07
First Publication Date 2023-12-19
Grant Date 2023-12-19
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chan, Yao-Ning
  • Feng, Tzu-Yun
  • Chang, Yun-Ya

42.

LIGHT-EMITTING DEVICE

      
Application Number 18223898
Status Pending
Filing Date 2023-07-19
First Publication Date 2023-11-09
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Wang, Hsin-Ying
  • Yeh, Hui-Chun
  • Chang, Li-Ming
  • Shen, Chien-Fu
  • Ou, Chen

Abstract

A light-emitting device, includes a semiconductor stack, including a first semiconductor layer, a second semiconductor layer and an active layer formed therebetween; a first electrode formed on the first semiconductor layer, comprising a first pad electrode; a second electrode formed on the second semiconductor layer, comprising a second pad electrode and a second finger electrode extending from the second pad electrode; a second current blocking region formed under the second electrode, comprising a second core region under the second pad electrode and an extending region under the second finger electrode; and a transparent conductive layer, formed on the second semiconductor layer and covering the second core region; wherein in a top view, a contour of the second pad electrode has a circular shape and a contour of the second core region has a shape which is different from the circular shape and selected from square, rectangle, rounded rectangle, rhombus, trapezoid and polygon.

IPC Classes  ?

  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/32 - Materials of the light emitting region containing only elements of group III and group V of the periodic system containing nitrogen
  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 33/20 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
  • H01L 33/14 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a carrier transport control structure, e.g. highly-doped semiconductor layer or current-blocking structure

43.

Light-emitting device, manufacturing method thereof and display module using the same

      
Application Number 18338815
Grant Number 12300772
Status In Force
Filing Date 2023-06-21
First Publication Date 2023-10-19
Grant Date 2025-05-13
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Hsieh, Min-Hsun
  • Liu, Hsin-Mao
  • Su, Ying-Yang

Abstract

A light-emitting device includes a light-emitting element having a first-type semiconductor layer, a second-type semiconductor layer, an active stack between the first-type semiconductor layer and the second-type semiconductor layer, a bottom surface, and a top surface. A first electrode is disposed on the bottom surface and electrically connected to the first-type semiconductor layer. A second electrode is disposed on the bottom surface and electrically connected to the second-type semiconductor layer. A supporting structure is disposed on the top surface. The supporting structure has a thickness and a maximum width. A ratio of the maximum width to the thickness is of 2-150.

IPC Classes  ?

  • H01L 33/58 - Optical field-shaping elements
  • H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
  • H01L 27/15 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier, specially adapted for light emission
  • H01L 33/50 - Wavelength conversion elements
  • H01L 33/60 - Reflective elements
  • H01L 23/00 - Details of semiconductor or other solid state devices

44.

Light-emitting device with semiconductor stack and reflective layer on semiconductor stack

      
Application Number 18212449
Grant Number 12080831
Status In Force
Filing Date 2023-06-21
First Publication Date 2023-10-19
Grant Date 2024-09-03
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chen, Chao-Hsing
  • Wang, Jia-Kuen
  • Chuang, Wen-Hung
  • Tseng, Tzu-Yao
  • Lu, Cheng-Lin

Abstract

A light-emitting device includes a semiconductor structure including a first semiconductor layer, a second semiconductor layer on the first semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, wherein the second semiconductor layer includes a first edge; a reflective structure located on the second semiconductor layer and including an outer edge; a first electrode pad located on the reflective structure, wherein the first electrode pad including an outer side wall adjacent to the outer edge, wherein the outer edge extends beyond the outer side wall and does not exceed the first edge in a cross-sectional view of the light-emitting device.

IPC Classes  ?

  • H01L 33/40 - Materials therefor
  • F21K 9/23 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
  • F21K 9/232 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
  • F21K 9/69 - Details of refractors forming part of the light source
  • F21Y 115/10 - Light-emitting diodes [LED]
  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 33/06 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a quantum effect structure or superlattice, e.g. tunnel junction within the light emitting region, e.g. quantum confinement structure or tunnel barrier
  • H01L 33/12 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a stress relaxation structure, e.g. buffer layer
  • H01L 33/22 - Roughened surfaces, e.g. at the interface between epitaxial layers
  • H01L 33/32 - Materials of the light emitting region containing only elements of group III and group V of the periodic system containing nitrogen
  • H01L 33/42 - Transparent materials
  • H01L 33/46 - Reflective coating, e.g. dielectric Bragg reflector
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls

45.

LIGHT-EMITTING DEVICE

      
Application Number 18296154
Status Pending
Filing Date 2023-04-05
First Publication Date 2023-10-12
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chen, Chao-Hsing
  • Lin, Yi-Hung
  • Hung, Chien-Ya

Abstract

A light-emitting device includes a substrate; a first semiconductor layer and a semiconductor platform disposed on the first semiconductor layer, wherein the semiconductor platform includes a second semiconductor layer and an active layer between the first semiconductor layer and the second semiconductor layer; a plurality of openings passing through the semiconductor platform to uncover the first semiconductor layer; a plurality of first electrodes and a plurality of first electrode pads on the first semiconductor layer in the plurality of openings and not covering the semiconductor platform; a second electrode and a second electrode pad on the second semiconductor layer and not covering the first semiconductor layer in the plurality of openings, wherein a first surface of the plurality of first electrode pads is higher than a second surface of the second electrode pad, and a step difference between the first surface and the second surface is less than 2 μm.

IPC Classes  ?

  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/20 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate

46.

Light-emitting diode and manufacturing method thereof

      
Application Number 18330562
Grant Number 12550508
Status In Force
Filing Date 2023-06-07
First Publication Date 2023-10-05
Grant Date 2026-02-10
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Yang, Jhih Yong
  • Wang, Hsin Ying
  • Kuo, De Shan

Abstract

A light-emitting diode, includes a semiconductor stack, including a first semiconductor layer, an active region and a second semiconductor layer; a transparent conductive layer formed on the semiconductor stack and electrically connected to the second semiconductor layer; an insulating layer formed on the transparent conductive layer, comprising a plurality of first opening; a first electrode formed on the insulating layer, electrically connected to the first semiconductor layer; and a second electrode formed on the insulating layer, comprising a second pad and a second extension extending from the second pad along a long side of the light-emitting diode toward the first electrode, electrically connected to the transparent conductive layer, wherein the second extension comprise a plurality of node parts and a plurality of linking parts alternately disposed, and in a plan view, the node part has a width smaller than that of the second pad and lager than that of the linking part and that of the first opening; wherein the second extension does not overlap the first electrode; and wherein the plurality of node parts contacts the transparent conductive layer through the plurality of the first openings.

IPC Classes  ?

  • H10H 20/857 - Interconnections, e.g. lead-frames, bond wires or solder balls
  • H10H 20/819 - Bodies characterised by their shape, e.g. curved or truncated substrates
  • H10H 20/01 - Manufacture or treatment

47.

Semiconductor light-emitting device

      
Application Number 18118488
Grant Number 11894491
Status In Force
Filing Date 2023-03-07
First Publication Date 2023-07-27
Grant Date 2024-02-06
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chen, Chao-Hsing
  • Wang, Jia-Kuen
  • Tseng, Tzu-Yao
  • Chiang, Tsung-Hsun
  • Hu, Bo-Jiun
  • Chuang, Wen-Hung
  • Lin, Yu-Ling

Abstract

A semiconductor light-emitting device includes a semiconductor stack including a first semiconductor layer and a second semiconductor layer; a first reflective layer formed on the first semiconductor layer and including a plurality of vias; a plurality of contact structures respectively filled in the vias and electrically connected to the first semiconductor layer; a second reflective layer including metal material formed on the first reflective layer and contacting the contact structures; a plurality of conductive vias surrounded by the semiconductor stack; a connecting layer formed in the conductive vias and electrically connected to the second semiconductor layer; a first pad portion electrically connected to the second semiconductor layer; and a second pad portion electrically connected to the first semiconductor layer, wherein a shortest distance between two of the conductive vias is larger than a shortest distance between the first pad portion and the second pad portion.

IPC Classes  ?

  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 33/10 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a light reflecting structure, e.g. semiconductor Bragg reflector
  • H01L 33/24 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate of the light emitting region, e.g. non-planar junction
  • H01L 33/42 - Transparent materials
  • H01L 33/46 - Reflective coating, e.g. dielectric Bragg reflector
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 33/02 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies
  • H01L 33/08 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a plurality of light emitting regions, e.g. laterally discontinuous light emitting layer or photoluminescent region integrated within the semiconductor body
  • H01L 33/22 - Roughened surfaces, e.g. at the interface between epitaxial layers
  • H01L 33/40 - Materials therefor
  • H01L 33/44 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the coatings, e.g. passivation layer or anti-reflective coating

48.

Light-emitting device

      
Application Number 29763121
Grant Number D0993199
Status In Force
Filing Date 2020-12-21
First Publication Date 2023-07-25
Grant Date 2023-07-25
Owner
  • EPISTAR CORPORATION (Taiwan, Province of China)
  • YENRICH TECHNOLOGY CORPORATION (Taiwan, Province of China)
Inventor
  • Hsieh, Min-Hsun
  • Yu, Jen-Chieh
  • Chen, Chun-Wei
  • Liu, Chun-Hung

49.

Light-emitting device, manufacturing method thereof and display module using the same

      
Application Number 18175395
Grant Number 12062748
Status In Force
Filing Date 2023-02-27
First Publication Date 2023-07-20
Grant Date 2024-08-13
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Hsieh, Min-Hsun
  • Chen, Shau-Yi
  • Deng, Shao-You

Abstract

A light-emitting device includes a carrier, a light-emitting element and a connection structure. The carrier includes a first electrical conduction portion. The light-emitting element includes a first light-emitting layer capable of emitting first light and a first contact electrode formed under the light-emitting layer. The first contact electrode is corresponded to the first electrical conduction portion. The connection structure includes a first electrical connection portion and a protective portion surrounding the first contact electrode and the first electrical connection portion. The first electrical connection portion includes an upper portion, a lower portion and a neck portion arranged between the upper portion and the lower portion. An edge of the upper portion is protruded beyond the neck portion, and an edge of the lower portion is protruded beyond the upper portion.

IPC Classes  ?

  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group

50.

Light-emitting device, manufacturing method thereof and display module using the same

      
Application Number 18175381
Grant Number 12100793
Status In Force
Filing Date 2023-02-27
First Publication Date 2023-06-29
Grant Date 2024-09-24
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Hsieh, Min-Hsun
  • Chen, Shau-Yi
  • Deng, Shao-You

Abstract

A light-emitting device includes a carrier, a light-emitting element and a connection structure. The carrier includes a first electrical conduction portion. The light-emitting element includes a first light-emitting layer capable of emitting first light and a first contact electrode formed under the light-emitting layer. The first contact electrode is corresponded to the first electrical conduction portion. The connection structure includes a first electrical connection portion and a protective portion surrounding the first contact electrode and the first electrical connection portion. The first electrical connection portion includes an upper portion, a lower portion and a neck portion arranged between the upper portion and the lower portion. An edge of the upper portion is protruded beyond the neck portion, and an edge of the lower portion is protruded beyond the upper portion.

IPC Classes  ?

  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group

51.

Semiconductor device and semiconductor component including the same preliminary class

      
Application Number 18099583
Grant Number 12051767
Status In Force
Filing Date 2023-01-20
First Publication Date 2023-05-25
Grant Date 2024-07-30
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Tseng, Yen-Chun
  • Huang, Kuo-Feng
  • Lee, Shih-Chang
  • Chin, Ming-Ta
  • Yen, Shih-Nan
  • Chiang, Cheng-Hsing
  • Lin, Chia-Hung
  • Yeh, Cheng-Long
  • Lee, Yi-Ching
  • Sung, Jui-Che
  • Cheng, Shih-Hao

Abstract

A semiconductor device is provided, which includes a first semiconductor structure, a second semiconductor structure, and an active region. The first semiconductor structure includes a first dopant. The second semiconductor structure is located on the first semiconductor structure and includes a second dopant different from the first dopant. The active region includes a plurality of semiconductor pairs and located between the first semiconductor structure and the second semiconductor structure. Each semiconductor pair includes a barrier layer and a well layer and includes the first dopant. The active region does not include a nitrogen element. A doping concentration of the first dopant in the first semiconductor structure is higher than a doping concentration of the first dopant in the active region.

IPC Classes  ?

  • H01L 33/06 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a quantum effect structure or superlattice, e.g. tunnel junction within the light emitting region, e.g. quantum confinement structure or tunnel barrier
  • H01L 33/02 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies
  • H01L 33/08 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a plurality of light emitting regions, e.g. laterally discontinuous light emitting layer or photoluminescent region integrated within the semiconductor body
  • H01L 33/14 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a carrier transport control structure, e.g. highly-doped semiconductor layer or current-blocking structure
  • H01L 33/20 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate

52.

Light-emitting device

      
Application Number 18092578
Grant Number 11973164
Status In Force
Filing Date 2023-01-03
First Publication Date 2023-05-18
Grant Date 2024-04-30
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Lin, Che-Hung
  • Liao, Chien-Chih
  • Hsu, Chi-Shiang
  • Kuo, De-Shan
  • Chen, Chao-Hsing

Abstract

A light-emitting device includes a substrate including a top surface; a semiconductor stack including a first semiconductor layer, an active layer and a second semiconductor layer formed on the substrate, wherein a portion of the top surface is exposed; a distributed Bragg reflector (DBR) formed on the semiconductor stack and contacting the portion of the top surface of the substrate; a metal layer formed on the distributed Bragg reflector (DBR), contacting the portion of the top surface of the substrate and being insulated with the semiconductor stack; and an insulation layer formed on the metal layer and contacting the portion of the top surface of the substrate.

IPC Classes  ?

  • H01L 33/08 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a plurality of light emitting regions, e.g. laterally discontinuous light emitting layer or photoluminescent region integrated within the semiconductor body
  • H01L 33/10 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a light reflecting structure, e.g. semiconductor Bragg reflector
  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape

53.

SEMICONDUCTOR DEVICE

      
Application Number 17940662
Status Pending
Filing Date 2022-09-08
First Publication Date 2023-03-16
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Hsueh, Wei-Jen
  • Lee, Shih-Chang

Abstract

A semiconductor device includes a dielectric layer, a first trench located in the dielectric layer, a first semiconductor located in the first trench, a second semiconductor layer and an electrical connector. The dielectric layer has a first surface. The second semiconductor layer includes an active portion connecting the first semiconductor layer, and the electrical connector is located on the first surface and connects the second semiconductor layer.

IPC Classes  ?

  • H01L 31/0304 - Inorganic materials including, apart from doping materials or other impurities, only AIIIBV compounds
  • H01L 31/105 - Devices sensitive to infrared, visible or ultraviolet radiation characterised by only one potential barrier or surface barrier the potential barrier being of the PIN type

54.

Optoelectronic device

      
Application Number 17940361
Grant Number 12581785
Status In Force
Filing Date 2022-09-08
First Publication Date 2023-03-09
Grant Date 2026-03-17
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Hsueh, Wei-Jen
  • Lee, Shih-Chang
  • Ou, Chen
  • Pan, Po-Chou
  • Liao, Wen-Luh

Abstract

An optoelectronic device includes a substrate, a first semiconductor stack located on the substrate, a second semiconductor stack located on the first semiconductor stack, and a first optical structure located between the first semiconductor stack and the second semiconductor stack. The first semiconductor stack includes a first semiconductor layer, a second semiconductor layer and a first active layer which emits or absorbs a first light with a first wavelength. The second semiconductor stack includes a third semiconductor layer, a fourth semiconductor layer and a second active layer which emits or absorbs a second light with a second wavelength smaller than the first wavelength. The first optical structure includes a plurality of first parts and a plurality of second parts. The first parts and the second parts are alternately arranged by a first period along a horizontal direction parallel to the substrate.

IPC Classes  ?

  • H01L 27/15 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier, specially adapted for light emission
  • H10F 39/10 - Integrated devices
  • H10H 29/10 - Integrated devices comprising at least one light-emitting semiconductor component covered by group

55.

Semiconductor device

      
Application Number 17983947
Grant Number 12689175
Status In Force
Filing Date 2022-11-09
First Publication Date 2023-03-02
Grant Date 2026-07-21
Owner
  • EPISTAR CORPORATION (Taiwan, Province of China)
  • BREACH CORPORATION (Taiwan, Province of China)
Inventor
  • Chung, Hsin-Chan
  • Chen, Shou-Lung

Abstract

A semiconductor device includes a substrate, a first type semiconductor structure, semiconductor columnar bodies between the substrate and the first type semiconductor structure, a first electrode and a second electrode. The first type semiconductor structure includes a first surface, a second surface opposite the first surface and away from the substrate, a first extension and a second extension respectively extending outward beyond the semiconductor columnar bodies. The first electrode and the second electrode are on the second surface of the first type semiconductor structure.

IPC Classes  ?

  • H01S 5/042 - Electrical excitation
  • H01S 5/0225 - Out-coupling of light
  • H01S 5/023 - Mount members, e.g. sub-mount members
  • H01S 5/02315 - Support members, e.g. bases or carriers
  • H01S 5/0233 - Mounting configuration of laser chips
  • H01S 5/0235 - Method for mounting laser chips
  • H01S 5/028 - Coatings
  • H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]

56.

SEMICONDUCTOR DEVICE

      
Application Number 17869582
Status Pending
Filing Date 2022-07-20
First Publication Date 2023-01-26
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Pan, Po-Chou
  • Lee, Shih-Chang
  • Hsueh, Wei-Jen
  • Kuo, Sheng-Feng

Abstract

A semiconductor device is provided, which includes a substrate, a first semiconductor structure, a plurality of first holes, a first dielectric structure and a second semiconductor structure. The first semiconductor structure is located on the substrate. The first holes are periodically arranged in the first semiconductor structure. The first dielectric structure is filled in one or more of the first holes. The second semiconductor structure is located on the first semiconductor structure.

IPC Classes  ?

  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape

57.

Light-emitting device

      
Application Number 17947526
Grant Number 12074252
Status In Force
Filing Date 2022-09-19
First Publication Date 2023-01-19
Grant Date 2024-08-27
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Wang, Chung-Hao
  • Wang, Yu-Chi
  • Chen, Yi-Ming
  • Chiu, Yi-Yang
  • Lin, Chun-Yu

Abstract

An optoelectronic semiconductor device includes a substrate, a first type semiconductor structure, a second type semiconductor structure, an active structure and a contact structure. The first type semiconductor structure is located on the substrate and has a first protrusion part with a first thickness and a platform part with a second thickness. The second type semiconductor structure is located on the first type semiconductor structure. The active structure is between the first type semiconductor structure and the second type semiconductor structure. The contact structure is disposed between the first type semiconductor structure and the substrate. The second thickness of the platform part is in a range of 0.01 μm to 1 μm.

IPC Classes  ?

  • H01L 33/20 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 33/22 - Roughened surfaces, e.g. at the interface between epitaxial layers
  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/46 - Reflective coating, e.g. dielectric Bragg reflector

58.

Light-emitting device having two light-emitting areas

      
Application Number 29745495
Grant Number D0975664
Status In Force
Filing Date 2020-08-06
First Publication Date 2023-01-17
Grant Date 2023-01-17
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Hu, Wei-Shan
  • Cheng, Ching-Tai
  • Lan, Pei-Hsuan

59.

LED assembly

      
Application Number 17947948
Grant Number 11949050
Status In Force
Filing Date 2022-09-19
First Publication Date 2023-01-12
Grant Date 2024-04-02
Owner
  • EPISTAR CORPORATION (Taiwan, Province of China)
  • KAISTAR LIGHTING (XIAMEN) CO., LTD. (China)
Inventor
  • Chen, Tzer-Perng
  • Cheng, Tzu-Chi

Abstract

An LED bulb with a screw base; a cover forming an accommodation space with the screw base; an LED filament located in the accommodation space including a substrate comprising a top surface, a side surface, and an extension direction; a plurality of LED chips disposed on the first top surface; a first electrode arranged on the top surface, electrically connected to the plurality of LED chips; and a first clamp including first and second projecting prongs. The first electrode is clamped by the first and second projecting prongs within the accommodation space. The LED bulb has an imaginary rotational axis not parallel to the extension direction.

IPC Classes  ?

  • H01L 33/50 - Wavelength conversion elements
  • H01L 33/48 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor body packages
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls

60.

Semiconductor device

      
Application Number 17860749
Grant Number 12364067
Status In Force
Filing Date 2022-07-08
First Publication Date 2023-01-12
Grant Date 2025-07-15
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Lin, Chun-Yu
  • Li, Jun-Yi
  • Chiu, Yi-Yang
  • Chang, Chun-Wei
  • Chen, Yi-Ming
  • Wu, Chang-Hsiu
  • Liao, Wen-Luh
  • Ou, Chen
  • Jheng, Wei-Wun

Abstract

A semiconductor device includes a semiconductor stack, a third semiconductor structure, a dielectric layer, and a reflective layer under the third semiconductor structure. The semiconductor stack includes a first semiconductor structure, an active structure, a second semiconductor structure. The first semiconductor structure has a first surface which includes a first portion and a second portion, and the first surface has a first area. The third semiconductor structure connects to the first portion, and has a second surface with a second area. The dielectric layer connects to the second portion and includes a plurality of openings, and the plurality of openings have a third area. A ratio of the second area to the first area is between 0.1˜0.7, and a ratio of the third area to the first area is less than 0.2.

IPC Classes  ?

  • H10H 20/832 - Electrodes characterised by their material
  • H10H 20/82 - Roughened surfaces, e.g. at the interface between epitaxial layers
  • H10H 20/831 - Electrodes characterised by their shape
  • H10H 20/833 - Transparent materials
  • H10H 20/84 - Coatings, e.g. passivation layers or antireflective coatings

61.

Light-emitting device

      
Application Number 29776714
Grant Number D0972769
Status In Force
Filing Date 2021-03-31
First Publication Date 2022-12-13
Grant Date 2022-12-13
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Kao, Hui-Fang
  • Chan, Yao-Ning
  • Lai, Yi-Tang
  • Chou, Yun-Chung
  • Lee, Shih-Chang
  • Ou, Chen

62.

LIGHT EMITTING DEVICE

      
Application Number 17830268
Status Pending
Filing Date 2022-06-01
First Publication Date 2022-12-08
Owner
  • EPISTAR CORPORATION (Taiwan, Province of China)
  • Yenrich Technology Corporation (Taiwan, Province of China)
Inventor
  • Hsieh, Min-Hsun
  • Liu, Hsin-Mao
  • Huang, Li-Yuan
  • Wang, Tzu-Hsiang
  • Pu, Chi-Chih
  • Lin, Ya-Wen
  • Chiu, Hsiao-Pei
  • Li, Pei-Yu

Abstract

A light-emitting device includes a first carrier, which includes a side surface between a first surface and a second surface, upper conductive pads on the first surface, and lower conductive pads under the second surface; a RDL pixel package includes a RDL which includes bonding pads and bottom electrodes, and the light-emitting units on the RDL, and connected to the bonding pads. A light-transmitting layer on the RDL and covers the light-emitting units, an upper surface, a lower surface, and a lateral surface between the upper surface and the lower surface. The RDL pixel package is on the first surface and electrically connected to the upper conductive pads. A protective layer covers the first surface and contacting the side surface of the RDL pixel package. The lower electrodes and the upper conductive pads are connected, and the distance between two adjacent bonding pads is less than 30 μm.

IPC Classes  ?

  • H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls

63.

Light-emitting device

      
Application Number 17856465
Grant Number 12300776
Status In Force
Filing Date 2022-07-01
First Publication Date 2022-10-20
Grant Date 2025-05-13
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Hsieh, Min-Hsun
  • Liao, Shih-An

Abstract

A light-emitting device includes a carrier, a light-emitting unit disposed on the carrier, a reflective element arranged on the light-emitting unit, and an optical element arranged on the carrier and surrounding the light-emitting unit.

IPC Classes  ?

  • H01L 33/60 - Reflective elements
  • H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
  • H01L 33/10 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a light reflecting structure, e.g. semiconductor Bragg reflector
  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/50 - Wavelength conversion elements
  • H01L 33/54 - Encapsulations having a particular shape
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls

64.

Light-emitting device and manufacturing method thereof

      
Application Number 17850549
Grant Number 12317654
Status In Force
Filing Date 2022-06-27
First Publication Date 2022-10-13
Grant Date 2025-05-27
Owner Epistar Corporation (Taiwan, Province of China)
Inventor
  • Lu, Tsung-Hong
  • Cheng, Ching-Tai

Abstract

A light-emitting device comprises a light-emitting element, a covering structure, a quantum dot material block, and an adhesive structure is disclosed. The covering structure has a depressed part. The quantum dot material block is filled into the depressed part and enclosed by the light-emitting element and the covering structure. The light-emitting element, the covering structure, and the quantum dot material block are bonded together through the adhesive structure. Since the quantum dot material block is enclosed by the covering structure and the light-emitting element, the outer moisture and oxygen are blocked by the covering structure and the light-emitting element from the quantum dot material block, the decreasing emitting efficiency of the quantum dot material is further alleviated.

IPC Classes  ?

  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 33/08 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a plurality of light emitting regions, e.g. laterally discontinuous light emitting layer or photoluminescent region integrated within the semiconductor body
  • H01L 33/50 - Wavelength conversion elements
  • H10H 20/851 - Wavelength conversion means
  • H10H 20/856 - Reflecting means
  • H10H 20/01 - Manufacture or treatment

65.

Light-emitting device

      
Application Number 17659634
Grant Number 11791370
Status In Force
Filing Date 2022-04-18
First Publication Date 2022-08-04
Grant Date 2023-10-17
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Hsieh, Min Hsun
  • Liu, Hsin-Mao

Abstract

This disclosure discloses a light-emitting display module display. The light-emitting display module comprises: a board; and a plurality of light-emitting diode modules arranged in an array configuration on the board; wherein one of the light-emitting diode modules comprises a plurality of encapsulated light-emitting units spaced apart from each other; and one of the encapsulated light-emitting units comprises a plurality of optoelectronic units, a first supporting, and a fence; and wherein the plurality of optoelectronic units are covered by the first supporting structure, and the fence surrounds the first supporting structure and the plurality of optoelectronic units.

IPC Classes  ?

  • H01L 27/15 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier, specially adapted for light emission
  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
  • H01L 33/48 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor body packages
  • H01L 33/50 - Wavelength conversion elements
  • H01L 33/56 - Materials, e.g. epoxy or silicone resin
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/44 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the coatings, e.g. passivation layer or anti-reflective coating

66.

Semiconductor light-emitting device

      
Application Number 17712690
Grant Number 11764332
Status In Force
Filing Date 2022-04-04
First Publication Date 2022-07-21
Grant Date 2023-09-19
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chen, Chao-Hsing
  • Wang, Jia-Kuen
  • Tseng, Tzu-Yao
  • Chiang, Tsung-Hsun
  • Hu, Bo-Jiun
  • Chuang, Wen-Hung
  • Lin, Yu-Ling

Abstract

A semiconductor light-emitting device includes a semiconductor stack including a first semiconductor layer, a second semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, wherein the first semiconductor layer includes a lateral outer perimeter surface surrounding the active layer; a plurality of vias penetrating the semiconductor stack to expose the first semiconductor layer; a first pad portion and a second pad portion formed on the semiconductor stack to respectively electrically connected to the first semiconductor layer and the second semiconductor layer, wherein the second pad portion and the first pad portion are arranged in a first direction; wherein the plurality of vias is arranged in a plurality of rows, the plurality of rows are arranged in the first direction and includes a first row and a second row, the first row is covered by the second pad portion, the second row is not covered by the first pad portion and the second pad portion, wherein a spacing between two adjacent vias in the first row is different from a spacing between two adjacent vias in the second row.

IPC Classes  ?

  • H01L 33/10 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a light reflecting structure, e.g. semiconductor Bragg reflector
  • H01L 33/24 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate of the light emitting region, e.g. non-planar junction
  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/42 - Transparent materials
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 33/22 - Roughened surfaces, e.g. at the interface between epitaxial layers
  • H01L 33/44 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the coatings, e.g. passivation layer or anti-reflective coating
  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 33/46 - Reflective coating, e.g. dielectric Bragg reflector
  • H01L 33/02 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies
  • H01L 33/08 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a plurality of light emitting regions, e.g. laterally discontinuous light emitting layer or photoluminescent region integrated within the semiconductor body
  • H01L 33/40 - Materials therefor

67.

Semiconductor Device

      
Application Number 17456858
Status Pending
Filing Date 2021-11-29
First Publication Date 2022-06-02
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Shen, Ching-Hsing
  • Liao, Wen-Luh
  • Ou, Chen
  • Lee, Shih-Chang
  • Kao, Hui-Fang
  • Chou, Yun-Chung

Abstract

The present disclosure provides a semiconductor device. The semiconductor device includes an epitaxial stack including a mesa region and a lower region; a first pad on the lower region and a second pad on the mesa region; a first contact between the epitaxial stack and the first pad; a passivation structure covering the epitaxial stack and including a first opening; and a first metal structure in the first opening and disposed between the first contact and the first pad; wherein the first metal structure includes a first top surface away from the epitaxial stack, and the passivation structure including a second top surface at a position corresponding to the lower region and away from the epitaxial stack, and a first height difference between the first top surface and the second top surface is less than 3 μm and larger than zero; and wherein the first metal structure includes a first width adjacent to the first contact and a second width adjacent to the first pad, and the second width is larger than the first width.

IPC Classes  ?

  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls

68.

WAVELENGTH CONVERSION STRUCTURE, LIGHT-EMITTING APPARATUS AND DISPLAY DEVICE USING THE SAME

      
Application Number 17512190
Status Pending
Filing Date 2021-10-27
First Publication Date 2022-04-28
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Bao, Zhen
  • Huang, Wen-Tse
  • Hong, Ling-Xuan
  • Liu, Ru-Shi
  • Lin, Jia-Cheng

Abstract

The present disclosure provides a wavelength conversion structure, a light-emitting apparatus, and a display device using the wavelength conversion structures. The wavelength conversion structure includes a porous inorganic shell and a plurality of organic complex phosphor particles filled in the porous inorganic shell. Wherein the plurality of organic complex phosphor particles is capable of being excited to emit light with a peak wavelength in the visible light range.

IPC Classes  ?

69.

Semiconductor light emitting device and method of fabricating the same

      
Application Number 17570206
Grant Number 11791436
Status In Force
Filing Date 2022-01-06
First Publication Date 2022-04-28
Grant Date 2023-10-17
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chiu, Hsin-Chih
  • Lu, Chih-Chiang
  • Lin, Chun-Yu
  • Ni, Ching-Huai
  • Chen, Yi-Ming
  • Hsu, Tzu-Chieh
  • Lin, Ching-Pei

Abstract

A semiconductor light-emitting device comprises a substrate; a first adhesive layer on the substrate; multiple epitaxial units on the first adhesive layer; a second adhesive layer on the multiple epitaxial units; multiple first electrodes between the first adhesive layer and the multiple epitaxial units, and contacting the first adhesive layer and the multiple epitaxial units; and multiple second electrodes between the second adhesive layer and the multiple epitaxial units, and contacting the second adhesive layer and the multiple epitaxial units; wherein the multiple epitaxial units are totally separated.

IPC Classes  ?

  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 33/46 - Reflective coating, e.g. dielectric Bragg reflector
  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 33/22 - Roughened surfaces, e.g. at the interface between epitaxial layers
  • H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
  • H01L 21/00 - Processes or apparatus specially adapted for the manufacture or treatment of semiconductor or solid-state devices, or of parts thereof

70.

Method of selectively transferring semiconductor device

      
Application Number 17646102
Grant Number 11901478
Status In Force
Filing Date 2021-12-27
First Publication Date 2022-04-21
Grant Date 2024-02-13
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Ku, Hao-Min
  • Chang, You-Hsien
  • Chen, Shih-I
  • Tsai, Fu-Chun
  • Chiu, Hsin-Chih

Abstract

A method of transferring multiple semiconductor devices from a first substrate to a second substrate comprises the steps of forming the multiple semiconductor devices adhered on the first substrate, wherein the multiple semiconductor devices comprises a first semiconductor device and a second semiconductor device, and the first semiconductor device and the second semiconductor device have a first gap between thereof; separating the first semiconductor device and the second semiconductor device from the first substrate; sticking the first semiconductor device and the second semiconductor device to a surface of the second substrate, wherein the first semiconductor device and the second semiconductor device have a second gap between thereof; wherein the first gap and the second gap are different.

IPC Classes  ?

  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 21/683 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls

71.

Semiconductor device and semiconductor component

      
Application Number 17406521
Grant Number 12002906
Status In Force
Filing Date 2021-08-19
First Publication Date 2022-02-24
Grant Date 2024-06-04
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Liang, Hao-Chun
  • Yeoh, Wei-Shan
  • Chan, Yao-Ning
  • Chen, Yi-Ming
  • Lee, Shih-Chang

Abstract

The present disclosure provides a semiconductor device and a semiconductor component. The semiconductor device includes an active structure, a ring-shaped semiconductor contact layer, a first electrode, and an insulating layer. The active structure has a first-conductivity-type semiconductor layer, a second-conductivity-type semiconductor layer, and an active layer located between the first-conductivity-type semiconductor layer and the second-conductivity-type semiconductor layer. The ring-shaped semiconductor contact layer is located on the second-conductivity-type semiconductor layer and having a first inner sidewall and a first outer sidewall. The first electrode has an upper surface and covers the ring-shaped semiconductor contact layer. The insulating layer covers the first electrode and the active structure and has a second inner sidewall and a second outer sidewall. The first inner sidewall is not flush with the second inner sidewall in a vertical direction.

IPC Classes  ?

  • H01L 33/44 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the coatings, e.g. passivation layer or anti-reflective coating
  • H01L 31/02 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof - Details
  • H01L 31/0216 - Coatings
  • H01L 31/0352 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
  • H01L 33/20 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
  • H01L 33/46 - Reflective coating, e.g. dielectric Bragg reflector
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 31/0224 - Electrodes
  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape

72.

Light emitting diode

      
Application Number 29798333
Grant Number D0944218
Status In Force
Filing Date 2021-07-07
First Publication Date 2022-02-22
Grant Date 2022-02-22
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Kao, Hui-Fang
  • Chan, Yao-Ning
  • Liang, Hao-Chun
  • Lee, Shih-Chang

73.

Light-emitting device and manufacturing method thereof

      
Application Number 17496132
Grant Number 12068433
Status In Force
Filing Date 2021-10-07
First Publication Date 2022-01-27
Grant Date 2024-08-20
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chao, Yen-Tai
  • Hsu, Sen-Jung
  • Chang, Tao-Chi
  • Wen, Wei-Chih
  • Chen, Ou
  • Wang, Yu-Shou
  • Tu, Chun-Hsiang
  • Huang, Jing-Feng

Abstract

A light-emitting device includes: a substrate having a top surface, wherein the top surface comprises a first portion and a second portion; a first semiconductor stack on the first portion, comprising a first upper surface and a first side wall; and a second semiconductor stack on the first upper surface, comprising a second upper surface and a second side wall, and wherein the second side wall connects the first upper surface; wherein the first semiconductor stack comprises a dislocation stop layer; wherein the dislocation stop layer comprises AlGaN; and wherein the first side wall and the second portion of the top surface form an acute angle α between thereof.

IPC Classes  ?

  • H01L 33/12 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a stress relaxation structure, e.g. buffer layer
  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 33/20 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
  • H01L 33/10 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a light reflecting structure, e.g. semiconductor Bragg reflector
  • H01L 33/16 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular crystal structure or orientation, e.g. polycrystalline, amorphous or porous
  • H01L 33/22 - Roughened surfaces, e.g. at the interface between epitaxial layers

74.

Light-emitting device

      
Application Number 17496155
Grant Number 11575070
Status In Force
Filing Date 2021-10-07
First Publication Date 2022-01-27
Grant Date 2023-02-07
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Lin, Che-Hung
  • Liao, Chien-Chih
  • Hsu, Chi-Shiang
  • Kuo, De-Shan
  • Chen, Chao-Hsing

Abstract

A light-emitting device includes a substrate including a top surface; a semiconductor stack including a first semiconductor layer, an active layer and a second semiconductor layer formed on the substrate, wherein a portion of the top surface is exposed; a distributed Bragg reflector (DBR) formed on the semiconductor stack and contacting the portion of the top surface of the substrate; a metal layer formed on the distributed Bragg reflector (DBR), contacting the portion of the top surface of the substrate and being insulated with the semiconductor stack; and an insulation layer formed on the metal layer and contacting the portion of the top surface of the substrate.

IPC Classes  ?

  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 33/08 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a plurality of light emitting regions, e.g. laterally discontinuous light emitting layer or photoluminescent region integrated within the semiconductor body
  • H01L 33/10 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a light reflecting structure, e.g. semiconductor Bragg reflector
  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape

75.

Light conversion device

      
Application Number 17482656
Grant Number 11610876
Status In Force
Filing Date 2021-09-23
First Publication Date 2022-01-13
Grant Date 2023-03-21
Owner
  • EPISTAR CORPORATION (Taiwan, Province of China)
  • NATIONAL TSTNG HUA UNIVERSITY (Taiwan, Province of China)
Inventor
  • Wu, Meng-Chyi
  • Liao, Jyun-Hao
  • Wang, Hsiang-Hui

Abstract

A light conversion device includes a light-emitting unit, a photoelectric conversion unit, and an electroconductive bonding layer. Each of the light-emitting unit and the photoelectric conversion unit includes a first-type region and a second-type region opposite to the first-type region. The electroconductive bonding layer is disposed between the light-emitting unit and the photoelectric conversion unit for connecting the photoelectric conversion unit with the light-emitting unit. When the light conversion device is operated to receive a bias and an external light, the light-emitting unit generates a modulated light having a frequency different from that of the external light.

IPC Classes  ?

  • H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
  • H01L 23/00 - Details of semiconductor or other solid state devices

76.

Semiconductor photo-detecting device

      
Application Number 17364175
Grant Number 11935981
Status In Force
Filing Date 2021-06-30
First Publication Date 2021-12-30
Grant Date 2024-03-19
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Su, Chu-Jih
  • Chou, Chia-Hsiang
  • Peng, Wei-Chih
  • Liao, Wen-Luh
  • Huang, Chao-Shun
  • Lin, Hsuan-Le
  • Lee, Shih-Chang
  • Liu, Mei Chun
  • Ou, Chen

Abstract

A photo-detecting device includes a first semiconductor layer with a first dopant, a light-absorbing layer, a second semiconductor layer, and a semiconductor contact layer. The second semiconductor layer is located on the first semiconductor layer and has a first region and a second region, the light absorbing layer is located between the first semiconductor layer and the second semiconductor layer and has a third region and a fourth region, the semiconductor contact layer contacts the first region. The first region includes a second dopant and a third dopant, the second region includes second dopant, and the third region includes third dopant. The semiconductor contact layer has a first thickness greater than 50 Å and smaller than 1000 Å.

IPC Classes  ?

  • H01L 31/055 - Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means where light is absorbed and re-emitted at a different wavelength by the optical element directly associated or integrated with the PV cell, e.g. by using luminescent material, fluorescent concentrators or up-conversion arrangements
  • H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
  • H01L 31/0224 - Electrodes
  • H01L 31/0304 - Inorganic materials including, apart from doping materials or other impurities, only AIIIBV compounds
  • H01L 31/101 - Devices sensitive to infrared, visible or ultraviolet radiation
  • H01L 31/12 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto

77.

Semiconductor photo-detecting device

      
Application Number 16917223
Grant Number 11335826
Status In Force
Filing Date 2020-06-30
First Publication Date 2021-12-30
Grant Date 2022-05-17
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Su, Chu-Jih
  • Huang, Chao-Shun
  • Lin, Shiuan-Leh
  • Lee, Shih-Chang
  • Liao, Wen-Luh
  • Liu, Mei-Chun

Abstract

A photo-detecting device includes a substrate, a first semiconductor layer, a light-absorbing layer, a second semiconductor layer, a semiconductor contact layer, an insulating layer, and an electrode structure. The second semiconductor layer includes a first region and a second region. The semiconductor contact layer is on the first region. The insulating layer covers the semiconductor contact layer, the first region, and the second region. The electrode structure covers the semiconductor contact layer, the insulating layer, the first region, and the second region.

IPC Classes  ?

  • H01L 31/055 - Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means where light is absorbed and re-emitted at a different wavelength by the optical element directly associated or integrated with the PV cell, e.g. by using luminescent material, fluorescent concentrators or up-conversion arrangements
  • H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
  • H01L 31/0224 - Electrodes
  • H01L 31/0304 - Inorganic materials including, apart from doping materials or other impurities, only AIIIBV compounds
  • H01L 31/12 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto
  • H01L 31/101 - Devices sensitive to infrared, visible or ultraviolet radiation

78.

Light-emitting device

      
Application Number 17357164
Grant Number 11563149
Status In Force
Filing Date 2021-06-24
First Publication Date 2021-12-16
Grant Date 2023-01-24
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Lin, Yi-Hung
  • Chen, Chao-Hsing
  • Wang, Jia-Kuen
  • Tseng, Tzu-Yao

Abstract

A light-emitting device includes a semiconductor structure including a first semiconductor layer, a second semiconductor layer, and an active layer formed between the first semiconductor layer and the second semiconductor layer; a via penetrating the second semiconductor layer and the active layer to expose a surface of the first semiconductor layer; a first electrode formed in the via and on the second semiconductor layer; a second electrode formed on the second semiconductor layer; and an insulating structure covering the first electrode, the second electrode and the semiconductor structure and including a first opening to expose the first electrode and a second opening to expose the second electrode, wherein the first electrode and the second electrode respectively include a metal layer contacting the insulating layer, the metal layer includes a material including a surface tension value larger than 1500 dyne/cm and a standard reduction potential larger than 0.3 V.

IPC Classes  ?

  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 33/40 - Materials therefor
  • H01L 33/22 - Roughened surfaces, e.g. at the interface between epitaxial layers
  • H01L 33/46 - Reflective coating, e.g. dielectric Bragg reflector
  • H01L 33/42 - Transparent materials
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 33/32 - Materials of the light emitting region containing only elements of group III and group V of the periodic system containing nitrogen
  • F21K 9/23 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
  • H01L 33/06 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a quantum effect structure or superlattice, e.g. tunnel junction within the light emitting region, e.g. quantum confinement structure or tunnel barrier
  • H01L 33/12 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a stress relaxation structure, e.g. buffer layer
  • F21K 9/232 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
  • F21Y 115/10 - Light-emitting diodes [LED]
  • F21K 9/69 - Details of refractors forming part of the light source

79.

Semiconductor device

      
Application Number 17333611
Grant Number 11699774
Status In Force
Filing Date 2021-05-28
First Publication Date 2021-10-28
Grant Date 2023-07-11
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Hsu, Tzu-Chieh
  • Huang, Yi-Wen
  • Chen, Shou-Lung
  • Chen, Hsin-Kang

Abstract

The present disclosure provides a semiconductor device. The semiconductor device includes a substrate having a first side and a second side opposite to the first side; a first optical element at the first side of the substrate; and a semiconductor stack on the substrate. The semiconductor stack includes a first reflective structure; a second reflective structure; a cavity region between the first reflective structure and the second reflective structure and having a first surface and a second surface opposite to the first surface; and a confinement layer in one of the second reflective structure and the first reflective structure. The semiconductor device further includes a first electrode and a second electrode on the first surface.

IPC Classes  ?

  • H01L 33/10 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a light reflecting structure, e.g. semiconductor Bragg reflector
  • H01S 5/42 - Arrays of surface emitting lasers
  • H01L 33/60 - Reflective elements
  • H01L 33/20 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01S 5/02 - Structural details or components not essential to laser action
  • H01S 5/042 - Electrical excitation
  • H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]

80.

LED driver and illumination system related to the same

      
Application Number 16172403
Grant Number RE048798
Status In Force
Filing Date 2018-10-26
First Publication Date 2021-10-26
Grant Date 2021-10-26
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Huang, Chih-Shu
  • Wu, Chang-Hseih
  • Hsieh, Min-Hsun

Abstract

A driver includes a semiconductor chip, a bridge rectifier, and a current driver. The semiconductor chip includes a rectifying diode and a constant current source formed thereon. The bridge rectifier includes the rectifying diode. The current driver includes the first constant current source to provide a constant current.

IPC Classes  ?

  • H05B 33/08 - Circuit arrangements for operating electroluminescent light sources
  • H02M 5/25 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
  • H05B 45/31 - Phase-control circuits
  • H05B 45/395 - Linear regulators
  • H05B 45/355 - Power factor correction [PFC]Reactive power compensation

81.

Light-emitting device

      
Application Number 17348080
Grant Number 11942509
Status In Force
Filing Date 2021-06-15
First Publication Date 2021-10-07
Grant Date 2024-03-26
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chen, Chao-Hsing
  • Ma, I-Lun
  • Hu, Bo-Jiun
  • Lin, Yu-Ling
  • Liao, Chien-Chih

Abstract

A light-emitting device comprises a substrate; a first light-emitting unit and a second light-emitting unit formed on the substrate, each of the first light-emitting unit and the second light-emitting unit comprises a first semiconductor layer, a second semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, wherein the first light-emitting unit comprises a first semiconductor mesa and a first surrounding part surrounding the first semiconductor mesa, and the second light-emitting unit comprises a second semiconductor mesa and a second surrounding part surrounding the second semiconductor mesa; a trench formed between the first light-emitting unit and the second light-emitting unit and exposing the substrate; a first insulating layer comprising a first opening on the first surrounding part and a second opening on the second semiconductor layer of the second light-emitting unit; and a connecting electrode comprising a first connecting part on the first light-emitting unit and connected to the first semiconductor layer formed in the first opening, a second connecting part on the second light-emitting unit and connected to the second semiconductor layer of the second light-emitting unit, and a third connecting part formed in the trench to connect the first connecting part and the second connecting part.

IPC Classes  ?

  • H01L 33/24 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate of the light emitting region, e.g. non-planar junction
  • H01L 27/15 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier, specially adapted for light emission
  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 33/12 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a stress relaxation structure, e.g. buffer layer
  • H01L 33/30 - Materials of the light emitting region containing only elements of group III and group V of the periodic system
  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/42 - Transparent materials
  • H01L 33/46 - Reflective coating, e.g. dielectric Bragg reflector
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls

82.

Semiconductor light-emitting device and semiconductor light-emitting component

      
Application Number 17211331
Grant Number 12230736
Status In Force
Filing Date 2021-03-24
First Publication Date 2021-09-30
Grant Date 2025-02-18
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chen, Jian-Zhi
  • Tseng, Yen-Chun
  • Kao, Hui-Fang
  • Chan, Yao-Ning
  • Lai, Yi-Tang
  • Chou, Yun-Chung
  • Lee, Shih-Chang
  • Ou, Chen

Abstract

The present disclosure provides a semiconductor light-emitting device and a semiconductor light-emitting component. The semiconductor light-emitting device includes a substrate, a first semiconductor contact layer, a semiconductor light-emitting stack including an active layer, a first-conductivity-type contact structure, a second semiconductor contact layer, a second-conductivity-type contact structure and a first electrode pad. The first-conductivity-type contact structure is electrically connected to the first semiconductor contact layer. The second-conductivity-type contact structure is electrically connected to the second semiconductor contact layer. The first-conductivity-type contact structure has a first bottom surface and a first top surface, and the active layer has a second bottom surface and a second top surface. The first bottom surface is lower than the second bottom surface, and the first top surface is higher than the second top surface in a cross-sectional view of the semiconductor light-emitting device.

IPC Classes  ?

  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
  • H01L 33/20 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
  • H01L 33/36 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes
  • H01L 33/30 - Materials of the light emitting region containing only elements of group III and group V of the periodic system
  • H01L 33/32 - Materials of the light emitting region containing only elements of group III and group V of the periodic system containing nitrogen
  • H01L 33/46 - Reflective coating, e.g. dielectric Bragg reflector

83.

SEMICONDUCTOR LIGHT-EMITTING DEVICE

      
Application Number 17202001
Status Pending
Filing Date 2021-03-15
First Publication Date 2021-09-23
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Wang, Hsin-Ying
  • Chen, Chao-Hsing
  • Lee, Chi-Ling
  • Ou, Chen
  • Hsieh, Min-Hsun

Abstract

A semiconductor light-emitting device includes: a substrate; a semiconductor stack on the substrate including a first semiconductor contact layer including an upper surface; a light-emitting stack including an active layer on the upper surface; a second semiconductor contact layer on the light-emitting stack; and a recessed region including part of the upper surface; a transparent electrode on the second semiconductor contact layer; a protective layer on the substrate and the light-emitting stack; and a first and a second electrode pad on the substrate and electrically connected to the first semiconductor contact layer and the transparent electrode via first and second openings of the protective layer. A ratio of an area of the substrate to an area of the transparent electrode ranges from 2 to 100. A ratio of an operating current of the semiconductor light-emitting device to the area of the transparent electrode ranges from 10 mA/mm2 to 1000 mA/mm2.

IPC Classes  ?

  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/42 - Transparent materials
  • H01L 25/13 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices having separate containers the devices being of a type provided for in group

84.

Light-emitting device, manufacturing method thereof and display module using the same

      
Application Number 17332378
Grant Number 11710812
Status In Force
Filing Date 2021-05-27
First Publication Date 2021-09-16
Grant Date 2023-07-25
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Hsieh, Min-Hsun
  • Liu, Hsin-Mao
  • Su, Ying-Yang

Abstract

A light-emitting device includes a light-emitting element having a first-type semiconductor layer, a second-type semiconductor layer, an active stack between the first-type semiconductor layer and the second-type semiconductor layer, a bottom surface, and a top surface. A first electrode is disposed on the bottom surface and electrically connected to the first-type semiconductor layer. A second electrode is disposed on the bottom surface and electrically connected to the second-type semiconductor layer. A supporting structure is disposed on the top surface. The supporting structure has a thickness and a maximum width. A ratio of the maximum width to the thickness is of 2˜150.

IPC Classes  ?

  • H01L 33/58 - Optical field-shaping elements
  • H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
  • H01L 33/50 - Wavelength conversion elements
  • H01L 27/15 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier, specially adapted for light emission
  • H01L 33/60 - Reflective elements
  • H01L 23/00 - Details of semiconductor or other solid state devices

85.

Method of applying conductive adhesive and manufacturing device using the same

      
Application Number 17327270
Grant Number 11626295
Status In Force
Filing Date 2021-05-21
First Publication Date 2021-09-09
Grant Date 2023-04-11
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor Hsieh, Min-Hsun

Abstract

An applying method includes the following steps. Firstly, a conductive adhesive including a plurality of conductive particles and an insulating binder is provided. Then, a carrier plate is provided. Then, a patterned adhesive is formed on the carrier plate by the conductive adhesive, wherein the patterned adhesive includes a first transferring portion. Then, a manufacturing device including a needle is provided. Then, the needle of the manufacturing device is moved to contact the first transferring portion. Then, the transferring portion is transferred to a board by the manufacturing device.

IPC Classes  ?

  • H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or
  • H01L 23/00 - Details of semiconductor or other solid state devices
  • B23K 3/06 - Solder feeding devicesSolder melting pans
  • B23K 1/00 - Soldering, e.g. brazing, or unsoldering

86.

Acoustic wave device and manufacturing method thereof

      
Application Number 17193492
Grant Number 12068735
Status In Force
Filing Date 2021-03-05
First Publication Date 2021-09-09
Grant Date 2024-08-20
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Hsu, Ta-Cheng
  • Chen, Wei-Shou
  • Chung, Chung-Jen
  • Chang, Chia-Min

Abstract

An acoustic wave device, includes piezoelectric layer having an upper piezoelectric surface and a lower piezoelectric surface; an upper electrode formed on the upper piezoelectric surface; a lower electrode; a support layer including a non-monocrystalline insulating material; and a lower cover, wherein the lower electrode and the support layer formed between the lower cover and the lower piezoelectric surface.

IPC Classes  ?

  • H03H 9/02 - Networks comprising electromechanical or electro-acoustic elementsElectromechanical resonators Details
  • H03H 3/02 - Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
  • H03H 9/05 - Holders or supports

87.

MEASUREMENT APPARATUS FOR GAS SENSOR

      
Application Number 16836781
Status Pending
Filing Date 2020-03-31
First Publication Date 2021-09-09
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor Peng, Wei-Chih

Abstract

A measurement apparatus for gas sensor includes a wafer-holding module and a vacuuming module. The wafer-holding module includes a holding carrier configured to hold a wafer. The holding carrier includes an uppermost surface, a bottommost surface, an outermost side surface between the uppermost surface and the bottommost surface, a plurality of grooves, and a plurality of through holes. The vacuuming module couples to the plurality of through holes and is configured to generate a negative pressure to attach the gas-sensing cell to the holding carrier. The wafer includes at least one uncut gas-sensing cell. At least one gas-sensing cell has a cavity located right above at least one of the grooves. The grooves extend downwardly from the uppermost surface and not reaching the bottommost surface. The grooves extend outwardly in a horizontal direction to expose out of the outermost side surface.

IPC Classes  ?

  • G01N 33/00 - Investigating or analysing materials by specific methods not covered by groups
  • G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
  • G01R 1/04 - HousingsSupporting membersArrangements of terminals

88.

Light-emitting diode

      
Application Number 29679564
Grant Number D0928104
Status In Force
Filing Date 2019-02-07
First Publication Date 2021-08-17
Grant Date 2021-08-17
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Kao, Hui-Fang
  • Chan, Yao-Ning
  • Liang, Hao-Chun
  • Lee, Shih-Chang

89.

Portion of light-emitting diode unit

      
Application Number 29682110
Grant Number D0927436
Status In Force
Filing Date 2019-03-01
First Publication Date 2021-08-10
Grant Date 2021-08-10
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor Tsai, Min-Yen

90.

Light-emitting device

      
Application Number 29706467
Grant Number D0926713
Status In Force
Filing Date 2019-09-20
First Publication Date 2021-08-03
Grant Date 2021-08-03
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Hsieh, Min-Hsun
  • Wang, Tzu-Hsiang
  • Pu, Chi-Chih
  • Lin, Ya-Wen

91.

Optoelectronic device and method for manufacturing the same

      
Application Number 17228602
Grant Number 11908975
Status In Force
Filing Date 2021-04-12
First Publication Date 2021-07-29
Grant Date 2024-02-20
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chen, Chao-Hsing
  • Wang, Jia-Kuen
  • Liao, Chien-Chih
  • Tseng, Tzu-Yao
  • Ko, Tsun-Kai
  • Shen, Chien-Fu

Abstract

An optoelectronic device includes a first semiconductor layer, a second semiconductor layer and an active layer between the first semiconductor layer and the second semiconductor layer; a first insulating layer on the second semiconductor layer and including a plurality of first openings exposing the first semiconductor layer, wherein the first openings include a first group and a second group; a third electrode on the first insulating layer and including a first extended portion and a second extended portion, wherein the first extended portion and the second extended portion are respectively electrically connected to the first semiconductor layer through the first group of the first openings and the second group of the first openings, and wherein the number of the first group of the first openings is different from the number of the second group of the first openings; and a plurality of fourth electrodes on the second insulating layer and electrically connected to the second semiconductor layer, wherein in a top view of the optoelectronic device, the first extended portion is located between the fourth electrodes.

IPC Classes  ?

  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/40 - Materials therefor

92.

OPTOELECTRONIC SYSTEM

      
Application Number 17220343
Status Pending
Filing Date 2021-04-01
First Publication Date 2021-07-22
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Hsieh, Min-Hsun
  • Han, Cheng-Nan
  • Hong, Steve Meng-Yuan
  • Liu, Hsin-Mao
  • Lee, Tsung-Xian

Abstract

An embodiment of the invention discloses an optoelectronic system comprising a plurality of optoelectronic elements, wherein each of the plurality of optoelectronic elements comprises a semiconductor epitaxial layer, a first electrode, a second electrode, a top surface, a bottom surface, and a plurality of lateral surfaces arranged between the top surface and the bottom surface; a layer covering the plurality of lateral surfaces and comprising a side surface; and a reflecting structure having a shape of pyramid, formed between two adjacent optoelectronic elements of the plurality of optoelectronic elements and electrically separated from the plurality of optoelectronic elements, wherein the reflecting structure is configured to reflect light from the two adjacent optoelectronic elements upwards to leave the optoelectronic system.

IPC Classes  ?

  • H01L 33/50 - Wavelength conversion elements
  • H01L 21/683 - Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereofApparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components for supporting or gripping
  • H01L 23/00 - Details of semiconductor or other solid state devices
  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/48 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor body packages
  • H01L 33/56 - Materials, e.g. epoxy or silicone resin

93.

LIGHT EMITTING DEVICE AND THE MANUFACTURING METHOD THEREOF

      
Application Number 17219455
Status Pending
Filing Date 2021-03-31
First Publication Date 2021-07-15
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Hsieh, Min-Hsun
  • Chen, Tzer-Perng
  • Wu, Jen-Chau
  • Shieh, Yuh-Ren
  • Tu, Chuan-Cheng

Abstract

A light-emitting apparatus comprises a board having a plurality of conductive channels penetrating thereof; a plurality of light emitting units for emitting different color lights, disposed on the board and electrically connected to the plurality of conductive channels; and an opaque layer arranged on the board for preventing the plurality of light emitting units from crosstalk, and comprising a plurality of holes for exposing and separating the plurality of light emitting units in a top view.

IPC Classes  ?

  • H01L 33/22 - Roughened surfaces, e.g. at the interface between epitaxial layers
  • H01L 23/00 - Details of semiconductor or other solid state devices
  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof

94.

Semiconductor light-emitting device

      
Application Number 17218906
Grant Number 12266737
Status In Force
Filing Date 2021-03-31
First Publication Date 2021-07-15
Grant Date 2025-04-01
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chen, Yi-Ming
  • Yang, Tsung-Hsien

Abstract

A semiconductor light-emitting device comprises a semiconductor stack having a first surface, wherein the first surface comprises multiple protrusion portions and multiple concave portions; a first electrode on the first surface and electrically connecting with the semiconductor stack; a second electrode on the first surface and electrically connecting with the semiconductor stack; and a transparent conduction layer conformally covering the first surface and between the first electrode and the semiconductor stack, wherein the first electrode comprises a first bonding portion and a first extending portion, and the first extending portion is between the first bonding portion and the transparent conduction layer and conformally covers the transparent conduction layer.

IPC Classes  ?

  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/20 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
  • H01L 33/40 - Materials therefor
  • H01L 33/42 - Transparent materials
  • H01L 33/48 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor body packages
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 33/32 - Materials of the light emitting region containing only elements of group III and group V of the periodic system containing nitrogen

95.

Light-emitting element, display device and backlight unit

      
Application Number 17136776
Grant Number 11870007
Status In Force
Filing Date 2020-12-29
First Publication Date 2021-07-01
Grant Date 2024-01-09
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Lin, Che-Hung
  • Kuo, De Shan

Abstract

A method of manufacturing a light-emitting element, includes: providing a base having an upper surface and a lower surface; forming a semiconductor stack on the upper surface; removing part of the semiconductor stack to form an isolation region surrounding the semiconductor stack; forming a dielectric stack covering the semiconductor stack and the isolation region; and applying a first laser having a first wavelength to irradiate the base along the isolation region; wherein the dielectric stack has a reflectance of 10%-50% and/or a transmittance of 50%-90% for the first wavelength.

IPC Classes  ?

  • H01L 33/08 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a plurality of light emitting regions, e.g. laterally discontinuous light emitting layer or photoluminescent region integrated within the semiconductor body
  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 33/22 - Roughened surfaces, e.g. at the interface between epitaxial layers

96.

Light-emitting element having conductive contact layer

      
Application Number 17185551
Grant Number 11699776
Status In Force
Filing Date 2021-02-25
First Publication Date 2021-07-01
Grant Date 2023-07-11
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Hon, Schang-Jing
  • Chen, Chao-Hsing
  • Ko, Tsun-Kai
  • Shen, Chien-Fu
  • Wang, Jia-Kuen
  • Chen, Hung-Che

Abstract

A light-emitting element includes a substrate including a first side, a second side and a third side connecting the first side and the second side; a light-emitting semiconductor stack on the substrate and including a first semiconductor layer, a second semiconductor layer, and a light-emitting layer between the first semiconductor layer and the second semiconductor layer; a first electrode on the first semiconductor layer and including a contact area and a first extension area; a second electrode on the second semiconductor layer; a protection layer on the light-emitting semiconductor stack and including a first through hole exposing the first electrode and a second through hole exposing the second electrode; a first conductive part on the protection layer and electrically connected to the first electrode; and a second conductive part on the protection layer and electrically connected to the second electrode, wherein the second conductive part comprises a projected area on the light-emitting semiconductor stack, the first extension area is located outside the projected area and located between the second conductive part and the third side.

IPC Classes  ?

  • H01L 33/38 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the electrodes with a particular shape
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 33/54 - Encapsulations having a particular shape
  • H01L 33/44 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the coatings, e.g. passivation layer or anti-reflective coating
  • H01L 33/46 - Reflective coating, e.g. dielectric Bragg reflector
  • H01L 33/20 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
  • H01L 33/24 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate of the light emitting region, e.g. non-planar junction

97.

Light emitting apparatus having antenna located in accommodation space formed by housing and control module

      
Application Number 17105834
Grant Number 11313518
Status In Force
Filing Date 2020-11-27
First Publication Date 2021-06-03
Grant Date 2022-04-26
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Wang, Sheng-Bo
  • Wu, Chang-Hsieh
  • Lin, Yi-Chao
  • Liu, Yao-Zhong
  • Kuo, Jai-Tai

Abstract

A light emitting apparatus includes a housing, a connector, a light source, a control module board, and an antenna. The housing includes an inner space. The light source is located in the inner space. The control module board is located in the connector, wherein an accommodation space is formed by the housing and the control module board. The antenna is located in the accommodation space.

IPC Classes  ?

  • F21K 9/238 - Arrangement or mounting of circuit elements integrated in the light source
  • F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
  • F21V 7/05 - Optical design plane
  • H05B 47/19 - Controlling the light source by remote control via wireless transmission
  • F21V 7/00 - Reflectors for light sources
  • F21K 9/232 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb

98.

Light-emitting device with semiconductor stack and reflective layer on semiconductor stack

      
Application Number 17165290
Grant Number 11721791
Status In Force
Filing Date 2021-02-02
First Publication Date 2021-05-27
Grant Date 2023-08-08
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Chen, Chao-Hsing
  • Wang, Jia-Kuen
  • Chuang, Wen-Hung
  • Tseng, Tzu-Yao
  • Lu, Cheng-Lin

Abstract

A light-emitting device includes a semiconductor structure including a first semiconductor layer, a second semiconductor layer on the first semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, wherein the second semiconductor layer includes a first edge; a reflective structure located on the second semiconductor layer and including an outer edge; a first electrode pad located on the reflective structure, wherein the first electrode pad including an outer side wall adjacent to the outer edge, wherein the outer edge extends beyond the outer side wall and does not exceed the first edge in a cross-sectional view of the light-emitting device.

IPC Classes  ?

  • H01L 33/40 - Materials therefor
  • H01L 33/22 - Roughened surfaces, e.g. at the interface between epitaxial layers
  • H01L 33/46 - Reflective coating, e.g. dielectric Bragg reflector
  • H01L 33/42 - Transparent materials
  • H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 33/32 - Materials of the light emitting region containing only elements of group III and group V of the periodic system containing nitrogen
  • F21K 9/23 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
  • H01L 33/06 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a quantum effect structure or superlattice, e.g. tunnel junction within the light emitting region, e.g. quantum confinement structure or tunnel barrier
  • H01L 33/12 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a stress relaxation structure, e.g. buffer layer
  • F21K 9/232 - Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
  • F21Y 115/10 - Light-emitting diodes [LED]
  • F21K 9/69 - Details of refractors forming part of the light source

99.

Photodetector with modified region in barrier and absorption structures

      
Application Number 17092674
Grant Number 11935969
Status In Force
Filing Date 2020-11-09
First Publication Date 2021-05-20
Grant Date 2024-03-19
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Lee, Shih-Chang
  • Lin, Shiuan-Leh
  • Chen, I-Hung
  • Su, Chu-Jih
  • Huang, Chao-Shun

Abstract

A photodetector includes a first semiconductor layer, an absorption structure, a second semiconductor layer, and a barrier structure. The absorption structure is located on the first semiconductor layer, and having a first conduction band, a first valence band, and a first band gap. The second semiconductor layer is located on the absorption structure, and having a second conduction band, a second valence band, and a second band gap. The barrier structure is located between the absorption structure and the second semiconductor layer, and having a third conduction band, a third valence band, and a third band gap. The third conduction band is greater than the second conduction band or the third valence band is less than the second valence band.

IPC Classes  ?

100.

Semiconductor device and semiconductor component including ihe same

      
Application Number 17089377
Grant Number 11588072
Status In Force
Filing Date 2020-11-04
First Publication Date 2021-05-06
Grant Date 2023-02-21
Owner EPISTAR CORPORATION (Taiwan, Province of China)
Inventor
  • Tseng, Yen-Chun
  • Huang, Kuo-Feng
  • Lee, Shih-Chang
  • Chin, Ming-Ta
  • Yen, Shih-Nan
  • Chiang, Cheng-Hsing
  • Lin, Chia-Hung
  • Yeh, Cheng-Long
  • Lee, Yi-Ching
  • Sung, Jui-Che
  • Cheng, Shih-Hao

Abstract

A semiconductor device is provided, which includes a first semiconductor structure, a second semiconductor structure, and an active region. The first semiconductor structure includes a first dopant. The second semiconductor structure is located on the first semiconductor structure and includes a second dopant different from the first dopant. The active region includes a plurality of semiconductor pairs and is located between the first semiconductor structure and the second semiconductor structure. One of the plurality of semiconductor pairs has a barrier layer and a well layer and includes the first dopant. The barrier layer has a first thickness and a first Al content, and the well layer has a second thickness and a second Al content, the second thickness is less than the first thickness, and the second Al content is less than the first Al content.

IPC Classes  ?

  • H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
  • H01L 33/20 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
  • H01L 33/14 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a carrier transport control structure, e.g. highly-doped semiconductor layer or current-blocking structure
  • H01L 33/08 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a plurality of light emitting regions, e.g. laterally discontinuous light emitting layer or photoluminescent region integrated within the semiconductor body
  • H01L 33/02 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies
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