发明授权
- 专利标题： Semiconductor device and protection method
- 专利标题（中）： 半导体器件及保护方法
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申请号： US744245申请日： 1996-11-05
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公开(公告)号： US5883402A公开(公告)日： 1999-03-16
- 发明人: Ichiro Omura , Tsuneo Ogura , Kenichi Matsushita , Hideaki Ninomiya
- 申请人： Ichiro Omura , Tsuneo Ogura , Kenichi Matsushita , Hideaki Ninomiya
- 申请人地址： JPX Kawasaki
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JPX Kawasaki
- 优先权： JPX7-287208 19951106; JPX8-075632 19960329
- 主分类号： H01L27/02
- IPC分类号： H01L27/02 ; H01L29/74
摘要：
A semiconductor device comprises a main switching element, an electric field detector and an on-voltage application unit. The main switching element includes a high-voltage main electrode, at least a low-voltage main electrode and at least a first gate electrode. The electric field detector has a MOS structure making conductive between the high-voltage main electrode and the first gate electrode in a path other than the main switching element in accordance with a predetermined electric field generated in the main switching element. The on-voltage application unit applies an on-voltage to the first gate electrode on the basis of the conductive state.
公开/授权文献
- US5130803A Satellite broadcasting tuner 公开/授权日：1992-07-14
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