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: 12080831Abstract: 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.Type: GrantFiled: June 21, 2023Date of Patent: September 3, 2024Assignee: EPISTAR CORPORATIONInventors: Chao-Hsing Chen, Jia-Kuen Wang, Wen-Hung Chuang, Tzu-Yao Tseng, Cheng-Lin Lu
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Publication number: 20240234635Abstract: 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.Type: ApplicationFiled: December 29, 2023Publication date: July 11, 2024Inventors: Chao-Hsing CHEN, Jia-Kuen WANG, Tzu-Yao TSENG, Tsung-Hsun CHIANG, Bo-Jiun HU, Wen-Hung CHUANG, Yu-Ling LIN
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Publication number: 20240154065Abstract: 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 aType: ApplicationFiled: January 11, 2024Publication date: May 9, 2024Inventors: Chao-Hsing CHEN, Jia-Kuen WANG, Chien-Chih LIAO, Tzu-Yao TSENG, Tsun-Kai KO, Chien-Fu SHEN
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Publication number: 20240136472Abstract: 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.Type: ApplicationFiled: December 29, 2023Publication date: April 25, 2024Inventors: Chao-Hsing CHEN, Jia-Kuen WANG, Tzu-Yao TSENG, Tsung-Hsun CHIANG, Bo-Jiun HU, Wen-Hung CHUANG, Yu-Ling LIN
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Patent number: 11908975Abstract: 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 aType: GrantFiled: April 12, 2021Date of Patent: February 20, 2024Assignee: EPISTAR CORPORATIONInventors: Chao-Hsing Chen, Jia-Kuen Wang, Chien-Chih Liao, Tzu-Yao Tseng, Tsun-Kai Ko, Chien-Fu Shen
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Patent number: 11894491Abstract: 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.Type: GrantFiled: March 7, 2023Date of Patent: February 6, 2024Assignee: EPISTAR CORPORATIONInventors: Chao-Hsing Chen, Jia-Kuen Wang, Tzu-Yao Tseng, Tsung-Hsun Chiang, Bo-Jiun Hu, Wen-Hung Chuang, Yu-Ling Lin
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Publication number: 20230335681Abstract: 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.Type: ApplicationFiled: June 21, 2023Publication date: October 19, 2023Inventors: Chao-Hsing CHEN, Jia-Kuen WANG, Wen-Hung CHUANG, Tzu-Yao TSENG, Cheng-Lin LU
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Patent number: 11764332Abstract: 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, wheType: GrantFiled: April 4, 2022Date of Patent: September 19, 2023Assignee: EPISTAR CORPORATIONInventors: Chao-Hsing Chen, Jia-Kuen Wang, Tzu-Yao Tseng, Tsung-Hsun Chiang, Bo-Jiun Hu, Wen-Hung Chuang, Yu-Ling Lin
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Publication number: 20230261148Abstract: A 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; one or multiple vias penetrating the active layer and the second semiconductor layer to expose the first semiconductor layer; a first contact layer covering the one or multiple vias; a third insulating layer including a first group of one or multiple third insulating openings on the second semiconductor layer to expose the first contact layer; a first pad on the semiconductor stack and covering the first group of one or multiple third insulating openings; and a second pad on the semiconductor stack and separated from the first pad with a distance, wherein the second pad is formed at a position other than positions of the one or multiple vias in a top view of the light-emitting device.Type: ApplicationFiled: April 20, 2023Publication date: August 17, 2023Inventors: 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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Patent number: 11721791Abstract: 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.Type: GrantFiled: February 2, 2021Date of Patent: August 8, 2023Assignee: EPISTAR CORPORATIONInventors: Chao-Hsing Chen, Jia-Kuen Wang, Wen-Hung Chuang, Tzu-Yao Tseng, Cheng-Lin Lu
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Publication number: 20230238488Abstract: 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.Type: ApplicationFiled: March 7, 2023Publication date: July 27, 2023Inventors: Chao-Hsing CHEN, Jia-Kuen WANG, Tzu-Yao TSENG, Tsung-Hsun CHIANG, Bo-Jiun HU, Wen-Hung CHUANG, Yu-Ling LIN
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Patent number: 11705480Abstract: An optoelectronic device comprises an epitaxial stack, comprising a first semiconductor layer, an active layer, and a second semiconductor layer; a trench exposing a portion of the first semiconductor layer; a first insulating layer formed on a side wall of the trench to electrically insulate from the active layer and the second semiconductor layer; a first electrode formed on the trench; a second electrode formed on the second semiconductor layer; a supporting device covering the epitaxial stack; an optical layer covering the first electrode and the second electrode, comprising a plurality of openings corresponding to positions of the first electrodes and the second electrodes; a fifth electrode electrically connected with the first electrode; and a sixth electrode electrically connected with the second electrode, wherein the fifth electrode and the sixth electrode each comprises a side comprising a length longer that of an edge of the epitaxial stack.Type: GrantFiled: April 29, 2022Date of Patent: July 18, 2023Assignee: EPISTAR CORPORATIONInventors: Chao Hsing Chen, Jia Kuen Wang, Chien Fu Shen, Chun Teng Ko
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Patent number: 11699776Abstract: 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 stType: GrantFiled: February 25, 2021Date of Patent: July 11, 2023Assignee: 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: 11658269Abstract: A 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; one or multiple vias penetrating the active layer and the second semiconductor layer to expose the first semiconductor layer; a first contact layer covering the one or multiple vias; a third insulating layer including a first group of one or multiple third insulating openings on the second semiconductor layer to expose the first contact layer; a first pad on the semiconductor stack and covering the first group of one or multiple third insulating openings; and a second pad on the semiconductor stack and separated from the first pad with a distance, wherein the second pad is formed at a position other than positions of the one or multiple vias in a top view of the light-emitting device.Type: GrantFiled: March 19, 2021Date of Patent: May 23, 2023Assignee: 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: 20230135799Abstract: A light-emitting device includes a first semiconductor layer; a semiconductor pillar formed on the first semiconductor layer, including a second semiconductor layer and an active layer, wherein the semiconductor pillar comprises an outmost periphery; a first contact layer formed on the first semiconductor layer and including a first contact portion and a first extending portion, wherein the first extending portion continuously surrounds an entirety of the outmost periphery of the semiconductor pillar and the first contact portion; a second contact layer formed on the second semiconductor layer; a first insulating layer including multiple first openings exposing the first contact layer and multiple second openings exposing the second contact layer; a first electrode contact layer connected to the first contact portion through the multiple first openings and covering all of the first contact layer; a second electrode contact layer connected to the second contact layer through the multiple second openings.Type: ApplicationFiled: December 29, 2022Publication date: May 4, 2023Inventors: 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: 11563149Abstract: 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: GrantFiled: June 24, 2021Date of Patent: January 24, 2023Assignee: EPISTAR CORPORATIONInventors: Yi-Hung Lin, Chao-Hsing Chen, Jia-Kuen Wang, Tzu-Yao Tseng
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Publication number: 20220262849Abstract: An optoelectronic device comprises an epitaxial stack, comprising a first semiconductor layer, an active layer, and a second semiconductor layer; a trench exposing a portion of the first semiconductor layer; a first insulating layer formed on a side wall of the trench to electrically insulate from the active layer and the second semiconductor layer; a first electrode formed on the trench; a second electrode formed on the second semiconductor layer; a supporting device covering the epitaxial stack; an optical layer covering the first electrode and the second electrode, comprising a plurality of openings corresponding to positions of the first electrodes and the second electrodes; a fifth electrode electrically connected with the first electrode; and a sixth electrode electrically connected with the second electrode, wherein the fifth electrode and the sixth electrode each comprises a side comprising a length longer that of an edge of the epitaxial stack.Type: ApplicationFiled: April 29, 2022Publication date: August 18, 2022Inventors: Chao Hsing CHEN, Jia Kuen WANG, Chien Fu SHEN, Chun Teng KO
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Publication number: 20220231196Abstract: 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, wheType: ApplicationFiled: April 4, 2022Publication date: July 21, 2022Inventors: Chao-Hsing CHEN, Jia-Kuen WANG, Tzu-Yao TSENG, Tsung-Hsun CHIANG, Bo-Jiun HU, Wen-Hung CHUANG, Yu-Ling LIN
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Patent number: 11355550Abstract: 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 optoelectronicType: GrantFiled: October 7, 2020Date of Patent: June 7, 2022Assignee: EPISTAR CORPORATIONInventors: Chao Hsing Chen, Jia Kuen Wang, Chien Fu Shen, Chun Teng Ko
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Patent number: 11329195Abstract: 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: GrantFiled: July 24, 2020Date of Patent: May 10, 2022Assignee: EPISTAR CORPORATIONInventors: Chao-Hsing Chen, Jia-Kuen Wang, Tzu-Yao Tseng, Tsung-Hsun Chiang, Bo-Jiun Hu, Wen-Hung Chuang, Yu-Ling Lin