Patents by Inventor Jia-Kuen Wang

Jia-Kuen Wang 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).

  • Publication number: 20170162751
    Abstract: An optoelectronic device includes a semiconductor stack, including a first semiconductor layer, an active layer formed on the first semiconductor layer, and a second semiconductor layer; a first metal layer formed on a top surface of the second semiconductor layer; a second metal layer formed on a top surface of the first semiconductor layer; an insulative layer formed on the top surface of the first semiconductor layer and the top surface of the second semiconductor layer; wherein a space between a sidewall of the first metal layer and a sidewall of the semiconductor stack is less than 3 ?m.
    Type: Application
    Filed: February 20, 2017
    Publication date: June 8, 2017
    Inventors: Jia-Kuen WANG, Chao-Hsing CHEN
  • Publication number: 20170141260
    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: Application
    Filed: November 14, 2016
    Publication date: May 18, 2017
    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: 9620679
    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: March 11, 2016
    Date of Patent: April 11, 2017
    Assignee: EPISTAR CORPORATION
    Inventors: Hong-Che Chen, Chien-Fu Shen, Chao-Hsing Chen, Yu-Chen Yang, Jia-Kuen Wang, Chih-Nan Lin
  • Patent number: 9601655
    Abstract: An optoelectronic device comprises a semiconductor stack, wherein the semiconductor stack comprises a first semiconductor layer, an active layer formed on the first semiconductor layer, and a second semiconductor layer formed on the active layer; an electrode formed on the second semiconductor layer, wherein the first electrode further comprises a reflective layer; and an insulative layer formed on the second semiconductor layer, and a space formed between the first electrode and the insulative layer.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: March 21, 2017
    Assignee: EPISTAR CORPORATION
    Inventors: Jia-Kuen Wang, Chao-Hsing Chen
  • Publication number: 20170069682
    Abstract: An optoelectronic device includes a substrate having a first side, a second side opposite to the first side; a first optoelectronic unit formed on the first side of the substrate; a second optoelectronic unit formed on the first side of the substrate; a third optoelectronic unit formed on the first side of the substrate; a first electrode formed on and electrically connected to the first optoelectronic unit; a second electrode formed on and electrically connected to the second optoelectronic unit; a first pad formed on the first side of the substrate and electrically insulated from the third optoelectronic unit; and a plurality of conductor arrangement structures electrically connected to the first optoelectronic unit, the second optoelectronic unit, and the third optoelectronic unit.
    Type: Application
    Filed: November 7, 2016
    Publication date: March 9, 2017
    Inventors: Chao Hsing CHEN, Jia Kuen WANG, Chien Fu SHEN, Chun Teng KO
  • Publication number: 20170040493
    Abstract: An optoelectronic device comprises a semiconductor stack, a first metal layer arranged above the semiconductor stack and having a first major plane and a first boundary with a first gradually reduced thickness, and a second metal layer arranged above the first metal layer and having a second major plane and a second boundary with a second gradually reduced thickness, wherein the second major plane parallels to the first major plane and the second boundary exceeds the first boundary, wherein a first angle formed between the first boundary and the semiconductor stack, and/or a second angle formed between the second boundary and the semiconductor stack, is/are less than 10°.
    Type: Application
    Filed: September 21, 2016
    Publication date: February 9, 2017
    Inventors: Jia-Kuen WANG, Chien-Fu SHEN, Hung-Che CHEN, Chao-Hsing CHEN
  • Publication number: 20170018684
    Abstract: A light-emitting element comprises a substrate; a light-emitting semiconductor stack on the substrate, the 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 first electrode on the first semiconductor layer; a reflective layer formed on the light-emitting semiconductor stack; a protection layer formed on the light-emitting semiconductor stack; and a conductive contact layer formed on the light-emitting semiconductor stack, wherein each layer above the substrate comprises a side surface inclined to a top surface of the substrate.
    Type: Application
    Filed: September 28, 2016
    Publication date: January 19, 2017
    Inventors: Schang-Jing HON, Chao-Hsing CHEN, Tsun-Kai KO, Chien-Fu SHEN, Jia-Kuen WANG, Hung-Che CHEN
  • Publication number: 20170005232
    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: Application
    Filed: September 14, 2016
    Publication date: January 5, 2017
    Inventors: Chao-Hsing CHEN, Jia-Kuen WANG, Tzu-Yao TSENG, Tsung-Hsun CHIANG, Bo-Jiun HU, Wen-Hung CHUANG, Yu-Ling LIN
  • Patent number: 9490295
    Abstract: An optoelectronic device including a substrate having a first site, a second side opposite to the first side, and an outer boundary; a light emitting unit formed on the first side; a first electrode electrically connected to the light emitting unit; a second electrode electrically connected to the light emitting unit; and a heat dissipation pad formed between the first electrode and the second electrode and electrically insulated from the light emitting unit.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: November 8, 2016
    Assignee: EPISTAR CORPORATION
    Inventors: Chao Hsing Chen, Jia Kuen Wang, Chien Fu Shen, Chun Teng Ko
  • Patent number: 9466767
    Abstract: An optoelectronic device comprises a semiconductor stack, a first metal layer formed above the semiconductor stack, wherein the first metal layer comprises a first major plane and a first boundary with a gradually reduced thickness, and a second metal layer formed above the first metal layer, wherein the second metal layer comprise a second major plane paralleling to the first major plane and a second boundary with a gradually reduced thickness, and the second boundary of the second metal layer exceeds the first boundary of the first metal layer.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: October 11, 2016
    Assignee: EPISTAR CORPORATION
    Inventors: Jia-Kuen Wang, Chien-Fu Shen, Hung-Che Chen, Chao-Hsing Chen
  • Patent number: 9461209
    Abstract: A semiconductor light-emitting device includes a semiconductor stack comprising 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 periphery surface surrounding the active layer; a plurality of vias penetrating the semiconductor stack to expose the first semiconductor layer; and a patterned metal layer formed on the plurality of vias and covered the periphery surface of the first semiconductor layer.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: October 4, 2016
    Assignee: EPISTAR CORPORATION
    Inventors: Min-Yen Tsai, Chao-Hsing Chen, Tsung-Hsun Chiang, Wen-Hung Chuang, Bo-Jiun Hu, Tzu-Yao Tseng, Jia-Kuen Wang, Kuan-Yi Lee, Yi-Ming Chen, Chun-Yu Lin, Tsung-Hsien Yang, Tzu-Chieh Hsu, Kun-De Lin, Yao-Ning Chan, Chih-Chiang Lu
  • Patent number: 9461208
    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 first electrode comprising multiple contact areas and multiple extension areas, wherein the multiple contact areas are physically separated from one another; and a first conductive part and a second conductive part formed on the light-emitting semiconductor stack and respectively electrically connected to the first semiconductor layer and the second semiconductor layer, wherein the first conductive part and the second conductive part each comprises a concave-convex profile.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: October 4, 2016
    Assignee: EPISTAR CORPORATION
    Inventors: Schang-Jing Hon, Chao-Hsing Chen, Tsun-Kai Ko, Chien-Fu Shen, Jia-Kuen Wang, Hung-Che Chen
  • Publication number: 20160197237
    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: Application
    Filed: March 11, 2016
    Publication date: July 7, 2016
    Inventors: Hong-Che CHEN, Chien-Fu SHEN, Chao-Hsing CHEN, Yu-Chen YANG, Jia-Kuen WANG, Chih-Nan LIN
  • Patent number: D760179
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: June 28, 2016
    Assignee: EPISTAR CORPORATION
    Inventors: Chao Hsing Chen, Tsun Kai Ko, Chien Fu Shen, Jia Kuen Wang, Hung Che Chen, Chun Teng Ko, Chien Chih Liao
  • Patent number: D764422
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: August 23, 2016
    Assignee: EPISTAR CORPORATION
    Inventors: Schang-Jing Hon, Chao-Hsing Chen, Tsun-Kai Ko, Chien-Fu Shen, Jia-Kuen Wang, Hung-Che Chen
  • Patent number: D768094
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: October 4, 2016
    Assignee: EPISTAR CORPORATION
    Inventors: Chao Hsing Chen, Tsung Hsun Chiang, Chien Chih Liao, Wen Hung Chuang, Min Yen Tsai, Bo Jiun Hu, Tzu Yao Tseng, Kuan Yi Lee, Jia Kuen Wang
  • Patent number: D769199
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: October 18, 2016
    Assignee: EPISTAR CORPORATION
    Inventors: Chao Hsing Chen, Tsung Hsun Chiang, Chien Chih Liao, Wen Hung Chuang, Bo Jiun Hu, Tzu Yao Tseng, Jia Kuen Wang, Tsun Kai Ko, Chien Fu Shen, Kuan Yi Lee, Min Yen Tsai
  • Patent number: D769831
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: October 25, 2016
    Assignee: EPISTAR CORPORATION
    Inventors: Chao Hsing Chen, Tzu Yao Tseng, Min Yen Tsai, Bo Jiun Hu, Kuan Yi Lee, Jia Kuen Wang, Tsung Hsun Chiang, Chien Chih Liao, Wen Hung Chuang
  • Patent number: D777693
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: January 31, 2017
    Assignee: EPISTAR CORPORATION
    Inventors: Chao Hsing Chen, Tsung Hsun Chiang, Chien Chih Liao, Wen Hung Chuang, Min Yen Tsai, Bo Jiun Hu, Tzu Yao Tseng, Jia Kuen Wang, Tsun Kai Ko, Chien Fu Shen, Kuan Yi Lee
  • Patent number: D783548
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: April 11, 2017
    Assignee: EPISTAR CORPORATION
    Inventors: Jia-Kuen Wang, Bo-Jiun Hu, Wen-Hung Chuang, Chao-Hsing Chen