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公开(公告)号：US10741721B2
公开(公告)日：2020-08-11
申请号：US16374282
申请日：2019-04-03
Applicant: EPISTAR CORPORATION
Inventor： Cheng-Feng Yu , Ching-Yuan Tsai , Yao-Ru Chang , Hsin-Chan Chung , Shih-Chang Lee , Wen-Luh Liao , Cheng-Hsing Chiang , Kuo-Feng Huang , Hsu-Hsuan Teng , Hung-Ta Cheng , Yung-Fu Chang
Abstract: A light-emitting device is provided. The light-emitting device comprises a substrate; an insulating layer on the substrate, wherein the insulating layer comprises a first hole; a light-emitting stack on the insulating layer and comprising an active region comprising a top surface, wherein the top surface comprises a first part and a second part; and an opaque layer covering the first part of the top surface and exposing the second part of the top surface, wherein the second part is directly above the first hole.
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公开(公告)号：US20140124798A1
公开(公告)日：2014-05-08
申请号：US13668716
申请日：2012-11-05
Applicant: EPISTAR CORPORATION
Inventor： Jhih-Sian Wang , Yao-Ru Chang , Yiwen Huang , Guo-Chin Liu
CPC classification number: H01L33/62 , H01L27/156 , H01L33/10 , H01L33/22 , H01L33/32 , H01L33/38 , H01L33/385 , H01L33/40 , H01L33/405 , H01L33/44
Abstract: A light-emitting element includes: a light-emitting structure; a plurality of first contact portions separately on the light-emitting structure; and a plurality of reflective portions disposed separately among the plurality of first contact portions.
Abstract translation: 发光元件包括：发光结构; 分别在所述发光结构上的多个第一接触部; 以及在所述多个第一接触部分中分开设置的多个反射部。
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公开(公告)号：US11121285B2
公开(公告)日：2021-09-14
申请号：US16680207
申请日：2019-11-11
Applicant: EPISTAR CORPORATION
Inventor： Yung-Fu Chang , Hui-Fang Kao , Yi-Tang Lai , Shih-Chang Lee , Wen-Luh Liao , Mei Chun Liu , Yao-Ru Chang , Yi Hisao
IPC: H01L33/14 , H01L33/40 , H01L25/075
Abstract: A semiconductor device includes a conductive layer, a semiconductor stack, a first contact structure, an intermediate structure, a second contact structure, a first electrode and a second electrode. The semiconductor stack is disposed on the conductive layer. The first contact structure is disposed on the semiconductor stack. The intermediate structure encloses the first contact structure. The second contact structure is between the conductive layer and the semiconductor stack. The first electrode is on the conductive layer and separated from the semiconductor stack. The second electrode is on the intermediate structure.
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公开(公告)号：US10032954B2
公开(公告)日：2018-07-24
申请号：US15591544
申请日：2017-05-10
Applicant: EPISTAR CORPORATION
Inventor： Cheng-Feng Yu , Ching-Yuan Tsai , Yao-Ru Chang , Hsin-Chan Chung , Shih-Chang Lee , Wen-Luh Liao , Cheng-Hsing Chiang , Kuo-Feng Huang , Hsu-Hsuan Teng , Hung-Ta Cheng , Yung-Fu Chang
Abstract: A light-emitting device is provided. The light-emitting device comprises a substrate; an insulating layer on the substrate, wherein the insulating layer comprises a first hole; a light-emitting stack on the insulating layer and comprising an active region comprising a top surface, wherein the top surface comprises a first part and a second part; and an opaque layer covering the first part of the top surface and exposing the second part of the top surface, wherein the second part is directly above the first hole.
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公开(公告)号：US20150311416A1
公开(公告)日：2015-10-29
申请号：US14795164
申请日：2015-07-09
Applicant: Epistar corporation
Inventor： Jhih-Sian Wang , Yao-Ru Chang , Yiwen Huang , Guo-Chin Liu
CPC classification number: H01L33/62 , H01L27/156 , H01L33/10 , H01L33/22 , H01L33/32 , H01L33/38 , H01L33/385 , H01L33/40 , H01L33/405 , H01L33/44
Abstract: A light-emitting element includes a light-emitting structure, a plurality of first contact portions disposed separately on the light-emitting structure, and a plurality of reflective portions disposed separately among the first contact portions.
Abstract translation: 发光元件包括发光结构，分别设置在发光结构上的多个第一接触部分和在第一接触部分之间分开设置的多个反射部。
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Patent Agency Ranking
公开(公告)号：US10529896B2
公开(公告)日：2020-01-07
申请号：US16136102
申请日：2018-09-19
Applicant: EPISTAR CORPORATION
Inventor： Yao-Ru Chang , Wen-Luh Liao , Chun-Yu Lin , Hsin-Chan Chung , Hung-Ta Cheng
IPC: H01L33/00 , H01L33/44 , H01L33/38 , H01L33/24 , H01L33/30 , H01L33/62 , H01L33/08 , H01L33/20 , H01L33/22
Abstract: The present disclosure provides a light-emitting device, comprising: a light-emitting stack; a first semiconductor layer on the light-emitting stack; a first electrode formed on the first semiconductor layer and comprising an inner segment, an outer segment, and a plurality of extending segments electrically connecting the inner segment with the outer segment.
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公开(公告)号：US09466775B2
公开(公告)日：2016-10-11
申请号：US14795164
申请日：2015-07-09
Applicant: Epistar corporation
Inventor： Jhih-Sian Wang , Yao-Ru Chang , Yiwen Huang , Guo-Chin Liu
IPC: H01L33/08 , H01L33/62 , H01L33/38 , H01L33/10 , H01L33/44 , H01L27/15 , H01L33/22 , H01L33/32 , H01L33/40
CPC classification number: H01L33/62 , H01L27/156 , H01L33/10 , H01L33/22 , H01L33/32 , H01L33/38 , H01L33/385 , H01L33/40 , H01L33/405 , H01L33/44
Abstract: A light-emitting element includes a light-emitting structure, a plurality of first contact portions disposed separately on the light-emitting structure, and a plurality of reflective portions disposed separately among the first contact portions.
Abstract translation: 发光元件包括发光结构，分别设置在发光结构上的多个第一接触部和在第一接触部之间分开设置的多个反射部。
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公开(公告)号：US09153747B2
公开(公告)日：2015-10-06
申请号：US14302036
申请日：2014-06-11
Applicant: Epistar Corporation
Inventor： Wen-Luh Liao , Chien-Chung Hsu , Yao-Ru Chang , Shih-I Chen , Chia-Liang Hsu
CPC classification number: H01L33/46 , H01L33/38 , H01L33/42 , H01L2224/32225 , H01L2224/48091 , H01L2224/48227 , H01L2224/73265 , H01L2924/00014 , H01L2924/00
Abstract: A light-emitting element includes a light-emitting stack which has an active layer, and a non-oxide insulative layer below the light-emitting stack, wherein a refractive index of the non-oxide insulative layer is less than 1.4.
Abstract translation: 发光元件包括具有有源层的发光叠层和发光叠层下面的非氧化物绝缘层，其中非氧化物绝缘层的折射率小于1.4。
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公开(公告)号：US10700240B2
公开(公告)日：2020-06-30
申请号：US16700614
申请日：2019-12-02
Applicant: EPISTAR CORPORATION
Inventor： Yao-Ru Chang , Wen-Luh Liao , Chun-Yu Lin , Hsin-Chan Chung , Hung-Ta Cheng
IPC: H01L33/00 , H01L33/44 , H01L33/38 , H01L33/24 , H01L33/62 , H01L33/30 , H01L33/22 , H01L33/08 , H01L33/20
Abstract: The present disclosure provides a light-emitting device. The light-emitting device includes a light emitting area and an electrode area. The light-emitting area includes a first semiconductor structure having a first active layer and a second semiconductor structure having a second active layer. The electrode area includes an external electrode structure surrounding the second semiconductor structure in a top view. The light-emitting area has a shape of circle or polygon in the top view. When the first semiconductor structure is driven by a first current, the first active layer can emit a first light with a first main wavelength. When the second semiconductor structure is driven by a second current, the active layer of the second semiconductor structure can emit a second light with a second main wavelength.
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公开(公告)号：US10109771B2
公开(公告)日：2018-10-23
申请号：US15653038
申请日：2017-07-18
Applicant: EPISTAR CORPORATION
Inventor： Yao-Ru Chang , Wen-Luh Liao , Chun-Yu Lin , Hsin-Chan Chung , Hung-Ta Cheng
Abstract: The present disclosure provides a light-emitting device, comprising: a light-emitting stack; a first semiconductor layer on the light-emitting stack; a first electrode formed on the first semiconductor layer and comprising an inner segment, an outer segment, and a plurality of extending segments electrically connecting the inner segment with the outer segment.
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