发明名称 |
Nitride semiconductor light emitting device |
摘要 |
A light emitting device includes a first layer of a first conductivity type, a second layer of a second conductivity type, a light emitting layer between the first and second layers, a first electrode disposed on a surface of the first layer, and a second electrode disposed on a surface of the second layer and electrically insulated from the first layer. The first layer has first and second regions, each of which contacts the first electrode. A dopant concentration in the first region is less than a dopant concentration in the second region. |
申请公布号 |
US9257608(B2) |
申请公布日期 |
2016.02.09 |
申请号 |
US201414188373 |
申请日期 |
2014.02.24 |
申请人 |
Kabushiki Kaisha Toshiba |
发明人 |
Tanaka Akira |
分类号 |
H01L33/32;H01L33/14;H01L33/38;H01L33/50;H01L33/20 |
主分类号 |
H01L33/32 |
代理机构 |
Patterson & Sheridan, LLP |
代理人 |
Patterson & Sheridan, LLP |
主权项 |
1. A nitride semiconductor light emitting device, comprising:
a first layer having a first conductivity type; a second layer having a second conductivity type; a light emitting layer between the first layer and the second layer, the light emitting layer including a nitride semiconductor material; a first electrode disposed on a surface of the first layer; and a second electrode disposed on a first surface of the second layer and electrically insulated from the first layer, wherein the first layer has a first region contacting the first electrode and having a first dopant concentration, and a second region contacting the first electrode and having a second dopant concentration that is greater than the first dopant concentration, and a portion of the first electrode is between the second region and the second electrode in a direction parallel to the first surface. |
地址 |
Tokyo JP |