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).
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Patent number: 10374130Abstract: 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: GrantFiled: September 28, 2016Date of Patent: August 6, 2019Assignee: EPISTAR CORPORATIONInventors: Schang-Jing Hon, Chao-Hsing Chen, Tsun-Kai Ko, Chien-Fu Shen, Jia-Kuen Wang, Hung-Che Chen
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Patent number: 10361342Abstract: 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 electrically connected to the first semiconductor layer; a second pad comprising multiple sidewalls electrically connected to the second semiconductor layer; and a metal layer formed on the semiconductor stack, wherein the metal layer surrounds the multiple sidewalls of the second pad and the metal layer is separated from the second pad.Type: GrantFiled: June 26, 2017Date of Patent: July 23, 2019Assignee: EPISTAR CORPORATIONInventors: Chao-Hsing Chen, Jia-Kuen Wang, Wen-Hung Chuang, Tzu-Yao Tseng, Cheng-Lin Lu, Chi-Shiang Hsu, Tsung-Hsun Chiang, Bo-Jiun Hu
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Patent number: 10340423Abstract: A light-emitting device includes 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; and a reflective layer located on the semiconductor structure and comprising an outer edge and a second area; wherein a distance between the first edge and the outer edge is between 0 ?m and 10 ?m, and the second area of the reflective layer is not less than 80% of the first area of the second semiconductor layer.Type: GrantFiled: January 18, 2018Date of Patent: July 2, 2019Assignee: EPISTAR CORPORATIONInventors: Chao-Hsing Chen, Jia-Kuen Wang, Wen-Hung Chuang, Tzu-Yao Tseng, Cheng-Lin Lu
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Patent number: 10297723Abstract: 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: GrantFiled: April 9, 2018Date of Patent: May 21, 2019Assignee: EPISTAR CORPORATIONInventors: 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
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Publication number: 20190148600Abstract: 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: ApplicationFiled: January 14, 2019Publication date: May 16, 2019Inventors: Chao-Hsing CHEN, Jia-Kuen WANG, Tzu-Yao TSENG, Wen-Hung CHUANG, Cheng-Lin LU
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Publication number: 20190103515Abstract: A light-emitting device includes a semiconductor stack including a first semiconductor layer, a second semiconductor layer formed on the first semiconductor layer, and an active layer formed therebetween, wherein the first semiconductor layer includes a surrounding exposed region not covered by the active layer, and the surrounding exposed region surrounds the active layer; a conductive layer formed on the second semiconductor layer, including a first conductive region extending toward and contacting the surrounding exposed region of the first semiconductor layer; an electrode layer formed on the first conductive region in the surrounding exposed region; an outside insulating layer covering a portion of the conductive layer and the electrode layer, and including a first opening exposing the other portion of the conductive layer; a bonding layer covering the outside insulating layer and electrically connecting to the other portion of the conductive layer through the first opening; and a conductive substrate, wType: ApplicationFiled: November 13, 2018Publication date: April 4, 2019Inventors: Chun-Teng Ko, Chao-Hsing Chen, Jia-Kuen Wang, Yen-Liang Kuo, Chih-Hao Chen, Wei-Jung Chung, Chih-Ming Wang, Wei-Chih Peng, Schang-Jing Hon, Yu-Yao Lin
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Patent number: 10217906Abstract: 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: GrantFiled: January 25, 2018Date of Patent: February 26, 2019Assignee: EPISTAR CORPORATIONInventors: Chao-Hsing Chen, Jia-Kuen Wang, Tzu-Yao Tseng, Wen-Hung Chuang, Cheng-Lin Lu
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Patent number: 10199544Abstract: 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: GrantFiled: December 29, 2017Date of Patent: February 5, 2019Assignee: EPISTAR CORPORATIONInventors: 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
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Publication number: 20190019919Abstract: A light-emitting device includes a first semiconductor layer; a plurality of semiconductor pillars separated from each other and formed on the first semiconductor layer, the plurality of semiconductor pillars respectively includes a second semiconductor layer and an active layer; a first electrode covering one portion of the plurality of semiconductor pillars; and a second electrode covering another portion of the plurality of semiconductor pillars, wherein the plurality of semiconductor pillars under a covering region of the first electrode are separated from each other by a first space, the plurality of semiconductor pillars outside the covering region of the first electrode are separated from each other by a second space, and the first space is larger than the second space.Type: ApplicationFiled: July 13, 2018Publication date: January 17, 2019Inventors: Aurelien GAUTHIER-BRUN, Chao-Hsing CHEN, Chang-Tai HSAIO, Chih-Hao CHEN, Chi-Shiang HSU, Jia-Kuen WANG, Yung-Hsiang LIN
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Patent number: 10153398Abstract: A light-emitting device includes a semiconductor stack including a first semiconductor layer, a second semiconductor layer and an active layer formed therebetween; a surrounding exposed region formed on peripheries of the semiconductor stack, exposing a surface of the first semiconductor layer; a conductive layer formed on the second semiconductor layer, including a first conductive region extending toward and contacting the surface of the first semiconductor layer in the surrounding exposed region; an electrode layer formed on the surrounding exposed region, surrounding the semiconductor stack, contacting the conductive layer and including an electrode pad not overlapping the semiconductor stack; an outside insulating layer covering a portion of the conductive layer and the electrode layer, including a first opening exposing the other portion of the conductive layer; a bonding layer covering the outside insulating layer and electrically connecting to the other portion of the conductive layer through the firsType: GrantFiled: November 1, 2017Date of Patent: December 11, 2018Assignee: EPISTAR CORPORATIONInventors: Chun-Teng Ko, Chao-Hsing Chen, Jia-Kuen Wang, Yen-Liang Kuo, Chih-Hao Chen, Wei-Jung Chung, Chih-Ming Wang, Wei-Chih Peng, Schang-Jing Hon, Yu-Yao Lin
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Publication number: 20180331154Abstract: 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 oneType: ApplicationFiled: July 10, 2018Publication date: November 15, 2018Inventors: Chao Hsing CHEN, Jia Kuen WANG, Chien Fu SHEN, Chun Teng KO
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Patent number: 10056429Abstract: An optoelectronic device includes a first optoelectronic unit; a second optoelectronic unit; a third optoelectronic unit formed between the first optoelectronic unit and the second optoelectronic unit; 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 electrically insulated from the third optoelectronic unit wherein the first pad is formed on the third optoelectronic unit or disposed between the first electrode and the second electrode; and a plurality of conductor arrangement structures electrically connected to the first optoelectronic unit, the second optoelectronic unit, and the third optoelectronic unit.Type: GrantFiled: August 7, 2017Date of Patent: August 21, 2018Assignee: EPISTAR CORPORATIONInventors: Chao Hsing Chen, Jia Kuen Wang, Chien Fu Shen, Chun Teng Ko
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Publication number: 20180233631Abstract: 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: ApplicationFiled: April 9, 2018Publication date: August 16, 2018Inventors: 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
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Publication number: 20180212126Abstract: 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: ApplicationFiled: January 26, 2018Publication date: July 26, 2018Inventors: Yi-Hung Lin, Chao-Hsing Chen, Jia-Kuen Wang, Tzu-Yao Tseng, Jen-Chieh Yu, Guan-Wu Chen
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Publication number: 20180212125Abstract: 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: ApplicationFiled: January 25, 2018Publication date: July 26, 2018Inventors: Chao-Hsing CHEN, Jia-Kuen WANG, Tzu-Yao Tseng, Wen-Hung Chuang, Cheng-Lin LU
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Publication number: 20180212110Abstract: A light-emitting device includes 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; and a reflective layer located on the semiconductor structure and comprising an outer edge and a second area; wherein a distance between the first edge and the outer edge is between 0 ?m and 10 ?m, and the second area of the reflective layer is not less than 80% of the first area of the second semiconductor layer.Type: ApplicationFiled: January 18, 2018Publication date: July 26, 2018Inventors: Chao-Hsing CHEN, Jia-Kuen WANG, Wen-Hung CHUANG, Tzu-Yao TSENG, Cheng-Lin LU
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Publication number: 20180145223Abstract: 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: ApplicationFiled: January 4, 2018Publication date: May 24, 2018Inventors: Hong-Che CHEN, Chien-Fu SHEN, Chao-Hsing CHEN, Yu-Chen YANG, Jia-Kuen WANG, Chih-Nan LIN
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Publication number: 20180145228Abstract: 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: ApplicationFiled: December 29, 2017Publication date: May 24, 2018Inventors: 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
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Publication number: 20180130924Abstract: A light-emitting device includes a semiconductor stack including a first semiconductor layer, a second semiconductor layer and an active layer formed therebetween; a surrounding exposed region formed on peripheries of the semiconductor stack, exposing a surface of the first semiconductor layer; a conductive layer formed on the second semiconductor layer, including a first conductive region extending toward and contacting the surface of the first semiconductor layer in the surrounding exposed region; an electrode layer formed on the surrounding exposed region, surrounding the semiconductor stack, contacting the conductive layer and including an electrode pad not overlapping the semiconductor stack; an outside insulating layer covering a portion of the conductive layer and the electrode layer, including a first opening exposing the other portion of the conductive layer; a bonding layer covering the outside insulating layer and electrically connecting to the other portion of the conductive layer through the firsType: ApplicationFiled: November 1, 2017Publication date: May 10, 2018Inventors: Chun-Teng Ko, Chao-Hsing Chen, Jia-Kuen Wang, YEN-LIANG KUO, Chih-Hao Chen, Wei-Jung Chung, Chih-Ming Wang, Wei-Chih Peng, Schang-Jing Hon, YU-YAO LIN
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Patent number: D824864Type: GrantFiled: December 22, 2016Date of Patent: August 7, 2018Assignee: EPISTAR CORPORATIONInventors: 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