| 发明名称 |
Photoswitching device including a MOSFET for detecting zero voltage crossing |
| 摘要 |
A switching device includes a thyristor and a MOSFET, and a voltage clamp circuit. The voltage clamp circuit includes an N+ type contact region formed in a surface layer of a N type substrate and electrically connected to a gate electrode of a MOSFET, and a P type guard ring surrounding the contact region.
|
| 申请公布号 |
US5293051(A) |
申请公布日期 |
1994.03.08 |
| 申请号 |
US19930016546 |
申请日期 |
1993.02.11 |
| 申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
MARIYAMA, MITSURU;KATO, NOBUYUKI |
| 分类号 |
H01L29/74;H01L29/745;H01L29/747;H01L29/749;H01L29/87;(IPC1-7):H01L29/74;H01L27/02;H01L29/34 |
主分类号 |
H01L29/74 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
