发明名称 |
Nitride-based semiconductor light-emitting device |
摘要 |
A nitride-based semiconductor light-emitting device includes a light-emitting stack comprising a first semiconductor structure having a first conductivity, a second semiconductor structure having a second conductivity, and an active region interposed the first semiconductor structure and the second semiconductor structure; a semiconductor buffer structure formed under the first semiconductor structure; and an un-doped AlGaN layer formed between the first semiconductor structure and the semiconductor buffer structure. |
申请公布号 |
US9524869(B2) |
申请公布日期 |
2016.12.20 |
申请号 |
US201414154149 |
申请日期 |
2014.01.13 |
申请人 |
Epistar Corporation |
发明人 |
Lin Wen Hsiang;Hsieh Chang-Hua |
分类号 |
H01L29/06;H01L21/02;H01L33/00;H01L33/12 |
主分类号 |
H01L29/06 |
代理机构 |
Muncy, Geissler, Olds & Lowe, P.C. |
代理人 |
Muncy, Geissler, Olds & Lowe, P.C. |
主权项 |
1. A nitride-based semiconductor light-emitting device, comprising:
a light-emitting stack comprising a first semiconductor structure having a first conductivity, a second semiconductor structure having a second conductivity, and an active region between the first semiconductor structure and the second semiconductor structure; a semiconductor buffer structure formed under the first semiconductor structure; and an un-doped AlGaN layer formed between the first semiconductor structure and the semiconductor buffer structure, wherein the un-doped AlGaN layer comprises a thickness between 40 and 600 angstrom. |
地址 |
Hsinchu TW |