发明申请
- 专利标题: LIGHT-EMITTING ELEMENT AND METHOD OF MAKING THE SAME
- 专利标题(中): 发光元件及其制造方法
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申请号: US12616929申请日: 2009-11-12
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公开(公告)号: US20100327298A1公开(公告)日: 2010-12-30
- 发明人: Taichiroo KONNO , Nobuaki KITANO
- 申请人: Taichiroo KONNO , Nobuaki KITANO
- 申请人地址: JP Tokyo
- 专利权人: HITACHI CABLE, LTD.
- 当前专利权人: HITACHI CABLE, LTD.
- 当前专利权人地址: JP Tokyo
- 优先权: JP2009-152344 20090626
- 主分类号: H01L33/00
- IPC分类号: H01L33/00 ; H01L21/30
摘要:
A light-emitting element includes a semiconductor substrate, a light emitting portion including an active layer sandwiched between a first cladding layer of a first conductivity type and a second cladding layer of a second conductivity type different from the first conductivity type, a reflective portion provided between the semiconductor substrate and the light emitting portion for reflecting light emitted from the active layer, and a current spreading layer provided on the light emitting portion opposite to the reflective portion and including a concavo-convex portion on a surface thereof. The reflective portion includes a plurality of pair layers each including a first semiconductor layer and a second semiconductor layer different from the first semiconductor layer, and the first semiconductor layer has a thickness TA1 defined by formulas (1) and (3), and the second semiconductor layer has a thickness TB1 defined by formulas (2) and (4).
公开/授权文献
- US08258529B2 Light-emitting element and method of making the same 公开/授权日:2012-09-04