| 发明名称 | Light-emitting device | ||
| 摘要 | A light-emitting device includes a semiconductor light-emitting stack; a current injected portion formed on the semiconductor light-emitting stack; an extension portion having a first branch radiating from the current injected portion and a second branch extending from the first branch; an electrical contact structure between the second branch and the semiconductor light-emitting stack and having a first width; and a current blocking structure located right beneath the electrical contact structure and having a second width larger than the first width. | ||
| 申请公布号 | US8987776(B2) | 申请公布日期 | 2015.03.24 |
| 申请号 | US201414169035 | 申请日期 | 2014.01.30 |
| 申请人 | Epistar Corporation | 发明人 | Chen Ying Ming;Hsu Tzu Chieh;Wang Jhih-Sian;Huang Chien-Fu;Chen Shih-I |
| 分类号 | H01L33/24;H01L33/38;H01L33/62;H01L23/00;H01L33/10;H01L33/22;H01L33/00;H01L33/20 | 主分类号 | H01L33/24 |
| 代理机构 | Muncy, Geissler, Olds & Lowe, P.C. | 代理人 | Muncy, Geissler, Olds & Lowe, P.C. |
| 主权项 | 1. A light-emitting device comprising: a semiconductor light-emitting stack comprising a center and an edge; a current injected portion on an upper surface of the semiconductor light-emitting stack, and located near the center of the upper surface of semiconductor light-emitting stack; and an extension portion on the semiconductor light-emitting stack, wherein the extension portion comprises multiple first branches, multiple second branches cross the first branches, and multiple third branches parallel to the edge, wherein one end of each first branch is connected with the current injected portion, and the other end of each first branch is connected with one of the third branches, and wherein a length of one of the multiple third branches is greater than that of one of the multiple second branches. | ||
| 地址 | Hsinchu TW | ||