Patents by Inventor Chao-Shun Huang
Chao-Shun Huang 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: 11935969Abstract: 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.Type: GrantFiled: November 9, 2020Date of Patent: March 19, 2024Assignee: EPISTAR CORPORATIONInventors: Shih-Chang Lee, Shiuan-Leh Lin, I-Hung Chen, Chu-Jih Su, Chao-Shun Huang
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Patent number: 11935981Abstract: 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 ? and smaller than 1000 ?.Type: GrantFiled: June 30, 2021Date of Patent: March 19, 2024Assignee: EPISTAR CORPORATIONInventors: Chu-Jih Su, Chia-Hsiang Chou, Wei-Chih Peng, Wen-Luh Liao, Chao-Shun Huang, Hsuan-Le Lin, Shih-Chang Lee, Mei Chun Liu, Chen Ou
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Patent number: 11335826Abstract: 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.Type: GrantFiled: June 30, 2020Date of Patent: May 17, 2022Assignee: EPISTAR CORPORATIONInventors: Chu-Jih Su, Chao-Shun Huang, Shiuan-Leh Lin, Shih-Chang Lee, Wen-Luh Liao, Mei-Chun Liu
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Publication number: 20210408310Abstract: 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.Type: ApplicationFiled: June 30, 2020Publication date: December 30, 2021Inventors: Chu-Jih Su, Chao-Shun Huang, Shiuan-Leh Lin, Shih-Chang Lee, Wen-Luh Liao, Mei-Chun Liu
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Publication number: 20210408311Abstract: 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 ? and smaller than 1000 ?.Type: ApplicationFiled: June 30, 2021Publication date: December 30, 2021Inventors: Chu-Jih SU, Chia-Hsiang CHOU, Wei-Chih PENG, Wen-Luh LIAO, Chao-Shun HUANG, Hsuan-Le LIN, Shih-Chang LEE, Mei Chun LIU, Chen OU
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Publication number: 20210151612Abstract: 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.Type: ApplicationFiled: November 9, 2020Publication date: May 20, 2021Inventors: Shih-Chang Lee, Shiuan-Leh Lin, I-Hung Chen, Chu-Jih Su, Chao-Shun Huang
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Patent number: 10886433Abstract: A light-emitting device comprises a textured substrate comprising a plurality of textured structures, wherein the textured structures and the textured substrate are both composed of sapphire; and a light-emitting stack overlaying the textured substrate, comprising a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer, wherein each of the plurality of textured structures comprises a top portion having a first top-view shape, and a bottom portion parallel to the top portion and having a second top-view shape, wherein the first top-view shape comprises a circle or an ellipse, the first top-view shape comprises a first periphery and the second top-view shape comprises a second periphery, the first periphery is enclosed by the second periphery, and various distances are between each of the first periphery and the second periphery.Type: GrantFiled: June 26, 2019Date of Patent: January 5, 2021Assignee: EPISTAR CORPORATIONInventors: Ta-Cheng Hsu, Ching-Shian Yeh, Chao-Shun Huang, Ying-Yong Su, Ya-Lan Yang, Ya-Ju Lee
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Publication number: 20190319170Abstract: A light-emitting device comprises a textured substrate comprising a plurality of textured structures, wherein the textured structures and the textured substrate are both composed of sapphire; and a light-emitting stack overlaying the textured substrate, comprising a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer, wherein each of the plurality of textured structures comprises a top portion having a first top-view shape, and a bottom portion parallel to the top portion and having a second top-view shape, wherein the first top-view shape comprises a circle or an ellipse, the first top-view shape comprises a first periphery and the second top-view shape comprises a second periphery, the first periphery is enclosed by the second periphery, and various distances are between each of the first periphery and the second periphery.Type: ApplicationFiled: June 26, 2019Publication date: October 17, 2019Inventors: Ta-Cheng HSU, Ching-Shian YEH, Chao-Shun HUANG, Ying-Yong SU, Ya-Lan YANG, Ya-Ju LEE
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Patent number: 10374125Abstract: A light-emitting device comprises a textured substrate comprising a plurality of textured structures, wherein the textured structures and the textured substrate are both composed of sapphire; and a light-emitting stack overlaying the textured substrate, comprising a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer, wherein each of the plurality of textured structures comprises a top portion having a first top-view shape, and a bottom portion parallel to the top portion and having a second top-view shape, wherein the first top-view shape comprises a circle or an ellipse, the first top-view shape comprises a first periphery and the second top-view shape comprises a second periphery, the first periphery is enclosed by the second periphery, and various distances are between each of the first periphery and the second periphery.Type: GrantFiled: July 30, 2018Date of Patent: August 6, 2019Assignee: EPISTAR CORPORATIONInventors: Ta-Cheng Hsu, Ching-Shian Yeh, Chao-Shun Huang, Ying-Yong Su, Ya-Lan Yang, Ya-Ju Lee
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Publication number: 20190067518Abstract: A light-emitting device comprises a textured substrate comprising a plurality of textured structures, wherein the textured structures and the textured substrate are both composed of sapphire; and a light-emitting stack overlaying the textured substrate, comprising a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer, wherein each of the plurality of textured structures comprises a top portion having a first top-view shape, and a bottom portion parallel to the top portion and having a second top-view shape, wherein the first top-view shape comprises a circle or an ellipse, the first top-view shape comprises a first periphery and the second top-view shape comprises a second periphery, the first periphery is enclosed by the second periphery, and various distances are between each of the first periphery and the second periphery.Type: ApplicationFiled: July 30, 2018Publication date: February 28, 2019Inventors: Ta-Cheng HSU, Ching-Shian YEH, Chao-Shun HUANG, Ying-Yong SU, Ya-Lan YANG, Ya-Ju LEE
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Patent number: 10038116Abstract: A light-emitting device comprises a textured substrate comprising a plurality of textured structures, wherein the textured structures and the textured substrate are both composed of sapphire; and a light-emitting stack overlaying the textured substrate, comprising a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer, wherein one of the plurality of textured structures comprises a top portion and a bottom portion, wherein a first distance between a first projection of the top portion on the bottom portion and the bottom portion at one side is different from a second distance between a second projection of the top portion on the bottom portion and the bottom portion at another side.Type: GrantFiled: August 30, 2017Date of Patent: July 31, 2018Assignee: EPISTAR CORPORATIONInventors: Ta-Cheng Hsu, Ching-Shian Yeh, Chao-Shun Huang, Ying-Yong Su, Ya-Lan Yang, Ya-Ju Lee
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Publication number: 20170365740Abstract: A light-emitting device comprises a textured substrate comprising a plurality of textured structures, wherein the textured structures and the textured substrate are both composed of sapphire; and a light-emitting stack overlaying the textured substrate, comprising a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer, wherein one of the plurality of textured structures comprises a top portion and a bottom portion, wherein a first distance between a first projection of the top portion on the bottom portion and the bottom portion at one side is different from a second distance between a second projection of the top portion on the bottom portion and the bottom portion at another side.Type: ApplicationFiled: August 30, 2017Publication date: December 21, 2017Inventors: Ta-Chen HSU, Ching-Shian YEH, Chao-Shun HUANG, Ying-Yong SU, Ya-Lan YANG, Ya-Ju LEE
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Patent number: 9780259Abstract: A light-emitting device comprises a textured substrate comprising a plurality of textured structures, wherein the textured structures and the textured substrate are both composed of sapphire; and a light-emitting stack overlaying the textured substrate, comprising a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer, wherein each of the plurality of textured structures comprises a top portion having a first top-view shape, and a bottom portion parallel to the top portion and having a second top-view shape, wherein the first top-view shape comprises a circle or an ellipse, the first top-view shape comprises a first periphery and the second top-view shape comprises a second periphery, the first periphery is enclosed by the second periphery, and various distances are between each of the first periphery and the second periphery.Type: GrantFiled: January 4, 2016Date of Patent: October 3, 2017Assignee: EPISTAR CORPORATIONInventors: Ta-Cheng Hsu, Ya-Lan Yang, Ying-Yong Su, Ching-Shian Yeh, Chao-Shun Huang, Ya-Ju Lee
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Publication number: 20160118538Abstract: A light-emitting device comprises a textured substrate comprising a plurality of textured structures, wherein the textured structures and the textured substrate are both composed of sapphire; and a light-emitting stack overlaying the textured substrate, comprising a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer, wherein each of the plurality of textured structures comprises a top portion having a first top-view shape, and a bottom portion parallel to the top portion and having a second top-view shape, wherein the first top-view shape comprises a circle or an ellipse, the first top-view shape comprises a first periphery and the second top-view shape comprises a second periphery, the first periphery is enclosed by the second periphery, and various distances are between each of the first periphery and the second periphery.Type: ApplicationFiled: January 4, 2016Publication date: April 28, 2016Inventors: Ta-Cheng HSU, Ya-Lan Yan, Ying-Yong SU, Ching-Shian YEH, Chao-Shun Huang, Ya-Ju Lee
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Patent number: 9231151Abstract: A light-emitting device comprises a textured substrate comprising a boundary and a plurality of textured structures within the boundary, wherein the textured structures and the textured substrate are both composed of sapphire; and a light-emitting stack overlaying the textured substrate, comprising a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer, wherein each of the plurality of textured structures comprises a top portion having a first top-view shape and a bottom portion parallel to the top portion, the bottom portion having a second top-view shape, wherein the first top-view shape comprises a circle or ellipse and the second top-view shape comprises a polygon, wherein the first top-view shape and the second top-view shape overlap each other, and the textured structures are spaced apart from each other from a top view of the light-emitting device.Type: GrantFiled: September 14, 2012Date of Patent: January 5, 2016Assignee: EPISTAR CORPORATIONInventors: Ta-Cheng Hsu, Ya-Lan Yang, Ying-Yong Su, Ching-Shian Yeh, Chao-Shun Huang, Ya-Ju Lee
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Patent number: 8648522Abstract: This disclosure provides a light-emitting device including a patterned substrate and the manufacturing method thereof. The patterned substrate has a plurality of depressions and/or extrusions for scattering light emitted from a light-emitting layer. Each of the plurality of depressions and/or extrusions comprises a top portion, a bottom portion, and a sidewall portion enclosing the top portion and the bottom portion, and at least part of the sidewall portion comprises a curve. In a preferred embodiment, the light-emitting device further comprises a rough surface formed on at least one of the top portion, the bottom portion, and the sidewall portion.Type: GrantFiled: August 20, 2010Date of Patent: February 11, 2014Assignee: Epistar CorporationInventors: Ta-Cheng Hsu, Ya-Lan Yang, Ying-Yong Su, Ching-Shian Yeh, Chao-Shun Huang, Ya-Ju Lee
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Publication number: 20130009188Abstract: This disclosure provides a light-emitting device including a patterned substrate and the manufacturing method thereof. The patterned substrate has a plurality of depressions and/or extrusions for scattering light emitted from a light-emitting layer. Each of the plurality of depressions and/or extrusions comprises a top portion, a bottom portion, and a sidewall portion enclosing the top portion and the bottom portion, and at least part of the sidewall portion comprises a curve. Ina preferred embodiment, the light-emitting device further comprises a rough surface formed on at least one of the top portion, the bottom portion, and the sidewall portion.Type: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Inventors: Ta-Cheng Hsu, Ya-Lan Yang, Ying-Yong Su, Ching-Shian Yeh, Chao-Shun Huang, Ya-Ju Lee
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Publication number: 20100314991Abstract: This disclosure provides a light-emitting device including a patterned substrate and the manufacturing method thereof. The patterned substrate has a plurality of depressions and/or extrusions for scattering light emitted from a light-emitting layer. Each of the plurality of depressions and/or extrusions comprises a top portion, a bottom portion, and a sidewall portion enclosing the top portion and the bottom portion, and at least part of the sidewall portion comprises a curve. In a preferred embodiment, the light-emitting device further comprises a rough surface formed on at least one of the top portion, the bottom portion, and the sidewall portion.Type: ApplicationFiled: August 20, 2010Publication date: December 16, 2010Inventors: Ta-Cheng Hsu, Ya-Lan Yang, Ying-Yong Su, Ching-Shian Yeh, Chao-Shun Huang, Ya-Ju Lee
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Patent number: 7825577Abstract: This disclosure provides a light-emitting device including a patterned substrate and the manufacturing method thereof. The patterned substrate has a plurality of depressions and/or extrusions for scattering light emitted from a light-emitting layer. Each of the plurality of depressions and/or extrusions comprises a top portion, a bottom portion, and a sidewall portion enclosing the top portion and the bottom portion, and at least part of the sidewall portion comprises a curve. In a preferred embodiment, the light-emitting device further comprises a rough surface formed on at least one of the top portion, the bottom portion, and the sidewall portion.Type: GrantFiled: July 30, 2007Date of Patent: November 2, 2010Assignee: Epistar CorporationInventors: Ta-Cheng Hsu, Ya-Lan Yang, Ying-Yong Su, Ching-Shian Yeh, Chao-Shun Huang, Ya-Ju Lee
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Publication number: 20080067916Abstract: This disclosure provides a light-emitting device including a patterned substrate and the manufacturing method thereof. The patterned substrate has a plurality of depressions and/or extrusions for scattering light emitted from a light-emitting layer. Each of the plurality of depressions and/or extrusions comprises a top portion, a bottom portion, and a sidewall portion enclosing the top portion and the bottom portion, and at least part of the sidewall portion comprises a curve. In a preferred embodiment, the light-emitting device further comprises a rough surface formed on at least one of the top portion, the bottom portion, and the sidewall portion.Type: ApplicationFiled: July 30, 2007Publication date: March 20, 2008Applicant: EPISTAR CORPORATIONInventors: Ta-Cheng Hsu, Ya-Lan Yang, Ying-Yong Su, Ching-Shian Yeb, Chao-Shun Huang, Ya-Ju Lee