发明授权
- 专利标题: Nitride semiconductor light-emitting element and method for producing same
- 专利标题(中): 氮化物半导体发光元件及其制造方法
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申请号: US13579174申请日: 2011-02-17
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公开(公告)号: US08742440B2公开(公告)日: 2014-06-03
- 发明人: Mayuko Fudeta , Eiji Yamada
- 申请人: Mayuko Fudeta , Eiji Yamada
- 申请人地址: JP Osaka-shi
- 专利权人: Sharp Kabushiki Kaisha
- 当前专利权人: Sharp Kabushiki Kaisha
- 当前专利权人地址: JP Osaka-shi
- 代理机构: Morrison & Foerster LLP
- 优先权: JP2010-034919 20100219
- 国际申请: PCT/JP2011/053358 WO 20110217
- 国际公布: WO2011/102411 WO 20110825
- 主分类号: H01L33/00
- IPC分类号: H01L33/00 ; H01L33/12 ; H01L33/20
摘要:
Disclosed is a nitride semiconductor light-emitting element comprising a p-type nitride semiconductor layer 1, a p-type nitride semiconductor layer 2, and a p-type nitride semiconductor layer 3 placed in order above a nitride semiconductor active layer, wherein the p-type nitride semiconductor layer 1 and p-type nitride semiconductor layer 2 each contain Al, the average Al composition of the p-type nitride semiconductor layer 1 is equivalent to the average Al composition of the p-type nitride semiconductor layer 2, the p-type nitride semiconductor layer 3 has a smaller band gap than the p-type nitride semiconductor layer 2, the p-type impurity concentration of the p-type nitride semiconductor layer 2 and the p-type impurity concentration of the p-type nitride semiconductor layer 3 are both lower than the p-type impurity concentration of the p-type nitride semiconductor layer 1, and a method for producing same.
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