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公开(公告)号:US20180233631A1
公开(公告)日:2018-08-16
申请号:US15948738
申请日:2018-04-09
Applicant: EPISTAR CORPORATION
Inventor: 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
IPC: H01L33/46
CPC classification number: H01L33/46 , H01L33/38 , H01L33/382 , H01L33/405
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.
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公开(公告)号:US20180233630A1
公开(公告)日:2018-08-16
申请号:US15952197
申请日:2018-04-12
Applicant: EPISTAR CORPORATION
Inventor: Chang-Huei JING , Chien-Fu SHEN
IPC: H01L33/38 , H01L33/00 , H01L25/075
Abstract: An optoelectronic device comprises a substrate; a groove on the substrate; a plurality of semiconductor units on the substrate and separated by the groove, wherein each semiconductor unit comprises a first semiconductor layer, a second semiconductor layer, and an active region interposed between the first semiconductor layer and the second semiconductor layer; a connecting part crossing the groove for connecting two of the plurality of semiconductor units, wherein the connecting part comprises one end on the first semiconductor layer and another end on the second semiconductor layer; a first electrode comprising a plurality of first extensions jointly connected to the one end of the connecting part; and a second electrode comprising a plurality of second extensions jointly connected to the another end of the connecting part, wherein an amount of the plurality of first extensions is different from an amount of the plurality of second extensions.
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公开(公告)号:US20170040493A1
公开(公告)日:2017-02-09
申请号:US15271632
申请日:2016-09-21
Applicant: EPISTAR CORPORATION
Inventor: Jia-Kuen WANG , Chien-Fu SHEN , Hung-Che CHEN , Chao-Hsing CHEN
CPC classification number: H01L33/38 , H01L33/0095 , H01L33/28 , H01L33/30 , H01L33/32 , H01L33/405 , H01L33/60 , H01L2224/48091 , H01L2224/73265 , H01L2933/0016 , H01L2924/00014
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°.
Abstract translation: 光电子器件包括半导体叠层,第一金属层,其布置在半导体堆叠之上并且具有第一主平面和具有第一逐渐减小厚度的第一边界,以及布置在第一金属层上方并具有第二主体的第二金属层 平面和具有第二逐渐减小的厚度的第二边界,其中所述第二主平面平行于所述第一主平面,并且所述第二边界超过所述第一边界,其中在所述第一边界和所述半导体叠层之间形成的第一角,和/ 在第二边界和半导体堆叠之间形成的第二角度小于10°。
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公开(公告)号:US20160233385A1
公开(公告)日:2016-08-11
申请号:US15097468
申请日:2016-04-13
Applicant: EPISTAR CORPORATION
Inventor: Chang-Huei JING , Chien-Fu SHEN
CPC classification number: H01L33/387 , H01L25/0753 , H01L27/15 , H01L33/0012 , H01L33/20 , H01L33/382 , H01L33/62 , H01L2924/0002 , H01L2924/00
Abstract: An optoelectronic device comprises a substrate; a groove on the substrate; a plurality of semiconductor units on the substrate and separated by the groove, wherein each semiconductor unit comprises a first semiconductor layer, a second semiconductor layer, and an active region interposed between the first semiconductor layer and the second semiconductor layer; a connecting part crossing the groove for connecting two of the plurality of semiconductor units, wherein the connecting part comprises one end on the first semiconductor layer and another end on the second semiconductor layer; a first electrode comprising a plurality of first extensions jointly connected to the one end of the connecting part; and a second electrode comprising a plurality of second extensions jointly connected to the another end of the connecting part, wherein an amount of the plurality of first extensions is different from an amount of the plurality of second extensions.
Abstract translation: 光电器件包括衬底; 衬底上的凹槽; 多个半导体单元,位于所述基板上并由所述凹槽分离,其中每个半导体单元包括第一半导体层,第二半导体层和介于所述第一半导体层和所述第二半导体层之间的有源区; 所述连接部分与所述凹槽交叉,用于连接所述多个半导体单元中的两个,其中所述连接部分包括在所述第一半导体层上的一端和所述第二半导体层上的另一端; 第一电极,其包括共同连接到所述连接部分的一端的多个第一延伸部; 以及第二电极,其包括共同连接到所述连接部分的另一端的多个第二延伸部,其中所述多个第一延伸部的量与所述多个第二延伸部的量不同。
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15.
公开(公告)号:US20150129869A1
公开(公告)日:2015-05-14
申请号:US14537058
申请日:2014-11-10
Applicant: EPISTAR CORPORATION
Inventor: Jia-Kuen WANG , Chien-Fu SHEN , Hung-Che CHEN , Chao-Hsing CHEN
CPC classification number: H01L33/38 , H01L33/0095 , H01L33/28 , H01L33/30 , H01L33/32 , H01L33/405 , H01L33/60 , H01L2224/48091 , H01L2224/73265 , H01L2933/0016 , H01L2924/00014
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.
Abstract translation: 光电子器件包括半导体叠层,形成在半导体叠层之上的第一金属层,其中第一金属层包括第一主平面和逐渐减小厚度的第一边界,以及形成在第一金属层之上的第二金属层, 其中所述第二金属层包括与所述第一主平面平行的第二主平面和具有逐渐减小的厚度的第二边界,并且所述第二金属层的第二边界超过所述第一金属层的第一边界。
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公开(公告)号:US20240154065A1
公开(公告)日:2024-05-09
申请号:US18410823
申请日:2024-01-11
Applicant: EPISTAR CORPORATION
Inventor: Chao-Hsing CHEN , Jia-Kuen WANG , Chien-Chih LIAO , Tzu-Yao TSENG , Tsun-Kai KO , Chien-Fu SHEN
IPC: H01L33/38
CPC classification number: H01L33/38 , H01L33/382 , H01L33/387 , H01L33/405
Abstract: 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 a top view of the optoelectronic device, the first extended portion is located between the fourth electrodes.
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公开(公告)号:US20230187473A1
公开(公告)日:2023-06-15
申请号:US18105045
申请日:2023-02-02
Applicant: Epistar Corporation
Inventor: Chien-Fu SHEN , Chao-Hsing CHEN , Tsun-Kai KO , Schang-Jing HON , Sheng-Jie HSU , De-Shan KUO , Hsin-Ying WANG , Chiu-Lin YAO , Chien-Fu HUANG , Hsin-Mao LIU , Chien-Kai CHUNG
CPC classification number: H01L27/156 , H01L25/0753 , H01L27/153 , H01L33/20 , H01L33/44 , H01L33/62 , H01L33/382 , H01L33/385 , H01L2924/0002
Abstract: A light-emitting device includes a substrate with a top surface; a first light-emitting structure unit and a second light-emitting structure unit separately formed on the top surface and adjacent to each other, and wherein the first light-emitting structure unit includes a first sidewall and the second light-emitting structure unit includes a second sidewall; an isolation layer formed on the first sidewall and the second sidewall, including a first edge on the first light-emitting structure unit and wherein the first edge has an acute angle in a cross-sectional view; and an electrical connection formed on the isolation layer, the first light-emitting structure unit and the second light-emitting structure unit, and electrically connecting the first light-emitting structure unit and the second light-emitting structure unit; wherein the first sidewall and the second sidewall are inclined; and wherein the electrical connection includes a first part on the first light-emitting structure unit, and the first part does not overlap the first edge of the isolation layer.
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公开(公告)号:US20220367563A1
公开(公告)日:2022-11-17
申请号:US17877550
申请日:2022-07-29
Applicant: EPISTAR CORPORATION
Inventor: Cheng-Yu CHEN , Hui-Chun YEH , Chien-Fu SHEN
Abstract: A method for manufacturing a light-emitting device, includes: forming a semiconductor stack on a substrate, wherein the semiconductor stack includes a first semiconductor layer, a second semiconductor layer and an active region formed therebetween; removing portions of the semiconductor stack to form a plurality of mesas and exposing a part of the first semiconductor layer, wherein the part of the first semiconductor layer includes a first portion and a second portion; forming a plurality of trenches by removing the first portion of the part of the first semiconductor to exposing a top surface of the substrate and a side wall of the first semiconductor, wherein the plurality of trenches defining a plurality of light-emitting units in the semiconductor stack; wherein in a top view, the plurality of trenches includes a first trench extending along a first direction and a second trench extending along a second direction not parallel with the first trench; and wherein the second trench includes an end; forming connection electrodes on the semiconductor stack to electrically connect the adjacent light-emitting units; and separating the substrate and the second portion of the part of the first semiconductor layer along a first dicing line not parallel with the second direction; wherein the first dicing line intersects the end of the second trench.
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公开(公告)号:US20210210659A1
公开(公告)日:2021-07-08
申请号:US17206647
申请日:2021-03-19
Applicant: EPISTAR CORPORATION
Inventor: 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
Abstract: 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.
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公开(公告)号:US20210183942A1
公开(公告)日:2021-06-17
申请号:US17170407
申请日:2021-02-08
Applicant: EPISTAR CORPORATION
Inventor: Chien-Fu SHEN , Chao-Hsing CHEN , Tsun-Kai KO , Schang-Jing HON , Sheng-Jie HSU , De-Shan KUO , Hsin-Ying WANG , Chiu-Lin YAO , Chien-Fu HUANG , Hsin-Mao LIU , Chien-Kai CHUNG
Abstract: A light-emitting device, includes a substrate with a top surface; a first light-emitting structure unit and a second light-emitting structure unit separately formed on the top surface and adjacent to each other, and wherein the first light-emitting structure unit includes a first sidewall and a second sidewall; a trench between the first and the second light-emitting structure units; and an electrical connection arranged on the first sidewall and the second light-emitting structure unit, and electrically connecting the first light-emitting structure unit and the second light-emitting structure unit; wherein the first sidewall connects to the top surface; wherein the first sidewall faces the second light-emitting structure units, and the second sidewall is not between the first light-emitting structure unit and the second light-emitting structure unit; and wherein the second sidewall is steeper than the first sidewall.
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