Patents by Inventor Chao-Hsing Chen

Chao-Hsing Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11011680
    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.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: May 18, 2021
    Assignee: Epistar Corporation
    Inventors: Yi-Hung Lin, Chao-Hsing Chen, Jia-Kuen Wang, Tzu-Yao Tseng, Jen-Chieh Yu, Guan-Wu Chen
  • Patent number: 11011679
    Abstract: An optoelectronic device, comprising a first semiconductor layer comprising four boundaries comprising two longer sides and two shorter sides; a second semiconductor layer formed on the first semiconductor layer; and a plurality of first conductive type electrodes formed on the first semiconductor layer, wherein one first part of the plurality of first conductive type electrodes is formed on a corner constituted by one of the two longer sides and one of the two shorter sides, and wherein one fourth part of the plurality of first conductive type electrodes is formed along the one of the two longer sides, the one fourth part of the plurality of first conductive type electrodes comprises a head portion and a tail portion, the head portion comprises a width larger than that of the tail portion.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: May 18, 2021
    Assignee: EPISTAR CORPORATION
    Inventors: Chao-Hsing Chen, Jia-Kuen Wang, Chien-Chih Liao, Tzu-Yao Tseng, Tsun-Kai Ko, Chien-Fu Shen
  • Publication number: 20210135049
    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.
    Type: Application
    Filed: November 4, 2019
    Publication date: May 6, 2021
    Inventors: Che-Hung Lin, Chien-Chih Liao, Chi-Shiang Hsu, De-Shan Kuo, Chao-Hsing Chen
  • Patent number: 10991854
    Abstract: A light-emitting element includes a semiconductor light-emitting stack including a first semiconductor layer, a second semiconductor layer formed on the first semiconductor layer, and an active layer formed therebetween; a first conductive layer disposed on the second semiconductor layer and electrically connecting the second semiconductor layer; a second conductive layer disposed on the second semiconductor layer and electrically connecting the first semiconductor layer; and a cushion part disposed on and directly contacts the first conductive layer, wherein in a top view, the cushion part is surrounded by and electrically isolated from the second conductive layer.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: April 27, 2021
    Assignee: EPISTAR CORPORATION
    Inventors: Chao-Hsing Chen, Tsung-Hsun Chiang, Chien-Chih Liao, Wen-Hung Chuang, Min-Yen Tsai, Bo-Jiun Hu
  • Patent number: 10985301
    Abstract: A light-emitting device includes a supportive substrate and a first light-emitting element on the supportive substrate. The first light-emitting element includes a first light-emitting stacked layer having a first surface and a second surface opposite to the first surface, and a first transparent layer on the first surface and electrically connected to the first light-emitting stacked layer. A second light-emitting element locates on the supportive substrate and a metal layer electrically connects to the first light-emitting element and the second light-emitting element and physically connects to the first transparent layer. The first light-emitting stacked layer includes a first width and the first transparent layer includes a second width different from the first width from a cross section view of the light-emitting device.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: April 20, 2021
    Assignee: EPISTAR CORPORATION
    Inventors: Shih-I Chen, Chia-Liang Hsu, Tzu-Chieh Hsu, Han-Min Wu, Ye-Ming Hsu, Chien-Fu Huang, Chao-Hsing Chen, Chiu-Lin Yao, Hsin-Mao Liu, Chien-Kai Chung
  • Patent number: 10985295
    Abstract: A light-emitting device comprises a semiconductor stack comprising a first semiconductor layer, a second semiconductor layer, and an active layer formed between the first semiconductor layer and the second semiconductor layer; a first contact layer on the first semiconductor layer; a second contact layer on the second semiconductor layer, wherein the first contact layer and the second contact layer comprise a metal material other than gold (Au) or copper (Cu); a first pad on the semiconductor stack; a second pad on the semiconductor stack.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: April 20, 2021
    Assignee: EPISTAR CORPORATION
    Inventors: Chao-Hsing Chen, Jia-Kuen Wang, Tzu-Yao Tseng, Bo-Jiun Hu, Tsung-Hsun Chiang, Wen-Hung Chuang, Kuan-Yi Lee, Yu-Ling Lin, Chien-Fu Shen, Tsun-Kai Ko
  • Patent number: 10964847
    Abstract: A light-emitting element comprises a light-emitting semiconductor stack comprising a first semiconductor layer, a second semiconductor layer on the first semiconductor layer, and a light-emitting layer between the first semiconductor layer and the second semiconductor layer; a reflective layer formed on the light-emitting semiconductor stack; a barrier layer formed on the reflective stack; a protection layer formed on the barrier layer, comprising a first through hole and a second through hole; a first height balancer filled in the first through hole and formed on the protection layer; a second height balancer filled in the second through hole and formed on the protection layer; and a conductive contact layer comprising a first conductive part formed on the first height balancer and a second conductive part formed on the second height balancer.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: March 30, 2021
    Assignee: EPISTAR CORPORATION
    Inventors: Schang-Jing Hon, Chao-Hsing Chen, Tsun-Kai Ko, Chien-Fu Shen, Jia-Kuen Wang, Hung-Che Chen
  • Patent number: 10950758
    Abstract: A light-emitting device comprises a semiconductor structure comprising a surface and a side wall inclined to the surface, wherein the semiconductor structure comprises 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, and the second semiconductor layer comprises a first edge and a first area; a reflective layer located on the second semiconductor layer and comprising an outer edge and a second area, wherein a distance between the first edge and the outer edge is greater than 0 ?m and is not greater than 10 ?m; and a first contact part comprising a metal formed on the reflective layer and the first semiconductor layer, wherein the first contact part comprises a first periphery comprising a first periphery length larger than a periphery length of the active layer from a top-view of the light-emitting device.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: March 16, 2021
    Assignee: Epistar Corporation
    Inventors: Chao-Hsing Chen, Jia-Kuen Wang, Wen-Hung Chuang, Tzu-Yao Tseng, Cheng-Lin Lu
  • Patent number: 10950652
    Abstract: Disclosed herein is a light-emitting device.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: March 16, 2021
    Assignee: EPISTAR CORPORATION
    Inventors: Chien-Fu Shen, Chao-Hsing Chen, Tsun-Kai Ko, Schang-Jing Hon, Sheng-Jie Hsu, De-Shan Kuo, Hsin-Ying Wang, Chiu-Lin Yao, Chien-Fu Huang, Hsin-Mao Liu, Chien-Kai Chung
  • Publication number: 20210020690
    Abstract: An optoelectronic device comprises a substrate; a first and a second optoelectronic units formed on the substrate; a plurality of third optoelectronic units formed on the substrate, electrically connected to the first optoelectronic unit and the second optoelectronic unit; a plurality of first electrodes respectively formed on the first optoelectronic unit, the second optoelectronic unit and the plurality of third optoelectronic units; a plurality of second electrodes respectively formed on the first optoelectronic unit, the second optoelectronic unit and the plurality of third optoelectronic units; an optical layer surrounding the first optoelectronic unit, the second optoelectronic unit and the plurality of third optoelectronic units in a top view of the optoelectronic device; a third electrode formed on the first optoelectronic unit and one of the plurality of third optoelectronic units; and a fourth electrode formed on the second optoelectronic unit and another one of the plurality of third optoelectronic
    Type: Application
    Filed: October 7, 2020
    Publication date: January 21, 2021
    Inventors: Chao Hsing CHEN, Jia Kuen WANG, Chien Fu SHEN, Chun Teng KO
  • Publication number: 20200357956
    Abstract: A semiconductor light-emitting device includes a substrate; a first semiconductor layer and a second semiconductor layer formed on the substrate, wherein the first semiconductor layer includes a first exposed portion and a second portion; a plurality of first trenches formed on the substrate and including a surface composed by the first exposed portion; a second trench formed on the substrate and including a surface composed by the second exposed portion at a periphery region of the semiconductor light-emitting device, wherein each of the plurality of first trenches is branched from the second trench; and a patterned metal layer formed on the second semiconductor layer and including a first metal region and a second metal region, and portions of the second metal region are formed in the plurality of first trenches and the second trench to electrically connect to the first exposed portion and the second exposed portion.
    Type: Application
    Filed: July 24, 2020
    Publication date: November 12, 2020
    Inventors: Chao-Hsing CHEN, Jia-Kuen WANG, Tzu-Yao TSENG, Tsung-Hsun CHIANG, Bo-Jiun HU, Wen-Hung CHUANG, Yu-Ling LIN
  • Patent number: 10825860
    Abstract: An optoelectronic device comprises a substrate; a first optoelectronic unit formed on the substrate; a second optoelectronic unit formed on the substrate; a plurality of third optoelectronic units formed on the substrate, electrically connected to the first optoelectronic unit and the second optoelectronic unit; a plurality of first electrodes respectively formed on the first optoelectronic unit, the second optoelectronic unit and the plurality of third optoelectronic units; a plurality of second electrodes respectively formed on the first optoelectronic unit, the second optoelectronic unit and the plurality of third optoelectronic units; an optical layer surrounding the first optoelectronic unit, the second optoelectronic unit and the plurality of third optoelectronic units in a top view of the optoelectronic device; a third electrode formed on the first optoelectronic unit and one of the plurality of third optoelectronic units; and a fourth electrode formed on the second optoelectronic unit and another one
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: November 3, 2020
    Assignee: EPISTAR CORPORATION
    Inventors: Chao Hsing Chen, Jia Kuen Wang, Chien Fu Shen, Chun Teng Ko
  • Publication number: 20200295233
    Abstract: A light-emitting device comprises a semiconductor stack comprising a first semiconductor layer, a second semiconductor layer, and an active layer formed between the first semiconductor layer and the second semiconductor layer; a first contact layer on the first semiconductor layer; a second contact layer on the second semiconductor layer, wherein the first contact layer and the second contact layer comprise a metal material other than gold (Au) or copper (Cu); a first pad on the semiconductor stack; a second pad on the semiconductor stack.
    Type: Application
    Filed: June 3, 2020
    Publication date: September 17, 2020
    Inventors: Chao-Hsing CHEN, Jia-Kuen WANG, Tzu-Yao TSENG, Bo-Jiun HU, Tsung-Hsun CHIANG, Wen-Hung CHUANG, Kuan-Yi LEE, Yu-Ling LIN, Chien-Fu SHEN, Tsun-Kai KO
  • Publication number: 20200279976
    Abstract: A light-emitting device comprises a semiconductor structure comprising a surface and a side wall inclined to the surface, wherein the semiconductor structure comprises 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, and the second semiconductor layer comprises a first edge and a first area; a reflective layer located on the second semiconductor layer and comprising an outer edge and a second area, wherein a distance between the first edge and the outer edge is greater than 0 ?m and is not greater than 10 ?m; and a first contact part comprising a metal formed on the reflective layer and the first semiconductor layer, wherein the first contact part comprises a first periphery comprising a first periphery length larger than a periphery length of the active layer from a top-view of the light-emitting device.
    Type: Application
    Filed: May 19, 2020
    Publication date: September 3, 2020
    Inventors: Chao-Hsing CHEN, Jia-Kuen WANG, Wen-Hung CHUANG, Tzu-Yao TSENG, Cheng-Lin LU
  • Patent number: 10749075
    Abstract: A semiconductor light-emitting device includes a semiconductor stack including a first semiconductor layer, a second semiconductor layer, and an active layer; a plurality of first trenches penetrating the second semiconductor layer and the active layer to expose the first semiconductor layer; a second trench penetrating the second semiconductor layer and the active layer to expose the first semiconductor layer, wherein the second trench is disposed near an outmost edge of the active layer, and surrounds the active layer and the plurality of first trenches; a patterned metal layer formed on the second semiconductor layer and formed in one of the plurality of first trenches or the second trench; and a first pad portion and a second pad portion both formed on the second semiconductor layer and electrically connecting the second semiconductor layer and the first semiconductor layer respectively.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: August 18, 2020
    Assignee: EPISTAR CORPORATION
    Inventors: Chao-Hsing Chen, Jia-Kuen Wang, Tzu-Yao Tseng, Tsung-Hsun Chiang, Bo-Jiun Hu, Wen-Hung Chuang, Yu-Ling Lin
  • Patent number: 10680136
    Abstract: A light-emitting device comprises a semiconductor structure comprising a surface and a side wall inclined to the surface, wherein the semiconductor structure comprises 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, and the second semiconductor layer comprises a first edge and a first area; a reflective layer located on the second semiconductor layer and comprising an outer edge and a second area, wherein a distance between the first edge and the outer edge is greater than 0 ?m and is not greater than 10 ?m; and a first contact part comprising a metal formed on the reflective layer and the first semiconductor layer, wherein the first contact part comprises a first periphery comprising a first periphery length larger than a periphery length of the active layer from a top-view of the light-emitting device.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: June 9, 2020
    Assignee: EPISTAR CORPORATION
    Inventors: Chao-Hsing Chen, Jia-Kuen Wang, Wen-Hung Chuang, Tzu-Yao Tseng, Cheng-Lin Lu
  • Patent number: 10680138
    Abstract: A light-emitting device comprises a semiconductor stack comprising a first semiconductor layer, a second semiconductor layer, and an active layer formed between the first semiconductor layer and the second semiconductor layer; a first pad on the semiconductor stack; a second pad on the semiconductor stack, wherein the first pad and the second pad are separated from each other with a distance, which define a region between the first pad and the second pad on the semiconductor stack; and multiple vias penetrating the active layer to expose the first semiconductor layer, wherein the first pad and the second pad are formed on regions other than the multiple vias.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: June 9, 2020
    Assignee: EPISTAR CORPORATION
    Inventors: Chao-Hsing Chen, Jia-Kuen Wang, Tzu-Yao Tseng, Bo-Jiun Hu, Tsung-Hsun Chiang, Wen-Hung Chuang, Kuan-Yi Lee, Yu-Ling Lin, Chien-Fu Shen, Tsun-Kai Ko
  • Patent number: 10658544
    Abstract: A light-emitting device comprises a semiconductor layer sequence comprising a first semiconductor layer having a first electrical conductivity, a second semiconductor layer having a second electrical conductivity, and an active layer interposed between the first semiconductor layer and the second semiconductor layer; a plurality of beveled trenches formed in the semiconductor layer sequence; a plurality of protruding structures respectively formed in the plurality of beveled trenches; a dielectric layer formed on the second semiconductor layer and an inner sidewall of the plurality of beveled trenches; a reflecting layer interposed between the semiconductor layer sequence and the dielectric layer; and a metal layer formed along the inner sidewall of the plurality of beveled trenches, wherein the dielectric layer, the reflecting layer and the metal layer are overlapping, the plurality of protruding structures and the reflecting layer are not overlapping.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: May 19, 2020
    Assignee: EPISTAR CORPORATION
    Inventors: Chao-Hsing Chen, Yu-Chen Yang, Li-Ping Jou, Hui-Chun Yeh, Yi-Wen Ku
  • Patent number: 10651344
    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 surrounding part surrounding the semiconductor structure and exposing a surface of the first semiconductor layer; a first insulating structure formed on the semiconductor structure, including a plurality of protrusions covering the surface of the first semiconductor layer and a plurality of recesses exposing the surface of the first semiconductor layer; a first contact portion formed on the surrounding part and contacting the surface of the first semiconductor layer by the plurality of recesses; a first pad formed on the semiconductor structure; and a second pad formed on the semiconductor structure.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: May 12, 2020
    Assignee: EPISTAR CORPORATION
    Inventors: Chao-Hsing Chen, Jia-Kuen Wang, Tzu-Yao Tseng, Wen-Hung Chuang, Cheng-Lin Lu
  • Patent number: 10644202
    Abstract: A light-emitting device comprises a light-emitting semiconductor stack comprising a plurality of recesses and a mesa, each of the plurality of recesses comprising a bottom surface, and the mesa comprising an upper surface; a first electrode formed on the upper surface of the mesa; a plurality of second electrodes respectively formed on the bottom surface of the plurality of recesses; a first electrode pad formed on the light-emitting semiconductor stack and contacting with the first electrode; a second electrode pad formed on the light-emitting semiconductor stack and contacting with the plurality of second electrode; a first insulating layer comprising a plurality of passages to expose the plurality of second electrodes; and a second insulating layer comprising a plurality of spaces and formed on the first insulating layer, wherein the plurality of spaces is covered by the first electrode pad.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: May 5, 2020
    Assignee: EPISTAR CORPORATION
    Inventors: Hong-Che Chen, Chien-Fu Shen, Chao-Hsing Chen, Yu-Chen Yang, Jia-Kuen Wang, Chih-Nan Lin