Invention Grant
- Patent Title: Semiconductor light-emitting device
- Patent Title (中): 半导体发光装置
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Application No.: US13194056Application Date: 2011-07-29
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Publication No.: US08405113B2Publication Date: 2013-03-26
- Inventor: Takuya Kazama
- Applicant: Takuya Kazama
- Applicant Address: JP Tokyo
- Assignee: Stanley Electric Co., Ltd.
- Current Assignee: Stanley Electric Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Holtz, Holtz, Goodman & Chick, P.C.
- Priority: JP2010-171779 20100730
- Main IPC: H01L33/22
- IPC: H01L33/22

Abstract:
A semiconductor light-emitting device includes a reflective electrode on a support; a first cladding layer; a light-emitting layer; a second cladding layer having a terrace structure formed of recesses and protrusions, a light-extracting structure having projections and depressions being formed on top surfaces of the protrusions and bottom surfaces of the recesses; and surface electrodes on the top surfaces of the protrusions. The second cladding layer has a stacked structure, which includes a first current-spreading layer, a first light-extracting layer on the first current-spreading layer and having the light-extracting structure on the bottom surfaces of the recesses, a second current-spreading layer on the first light-extracting layer, and a second light-extracting layer on the second current-spreading layer and having the light-extracting structure on the top surfaces of the protrusions, and the first and second light-extracting layer have lower light absorptance and higher resistance than the first and second current-spreading layer.
Public/Granted literature
- US20120025251A1 SEMICONDUCTOR LIGHT-EMITTING DEVICE Public/Granted day:2012-02-02
Information query
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