发明名称 |
SEMICONDUCTOR DEVICE, METHOD OF MANUFACTURING THE SAME AND POWER-SUPPLY DEVICE USING THE SAME |
摘要 |
In a lateral-type power MOSFET, high breakdown voltage is achieved with suppressing to increase a cell pitch, and a feedback capacity and an ON resistance are decreased. An n− type silicon region having a high resistance to be a region of maintaining a breakdown voltage is vertically provided with respect to a main surface of an n+ type silicon substrate, and the n− type silicon region having the high resistance is connected to the n+ type silicon substrate. Also, a conductive substance is filled through an insulating substance inside a trench formed to reach the n+ type silicon substrate from the main surface of the n+ type silicon substrate so as to contact with the n− type silicon region having the high resistance, and the conductive substance is electrically connected to a source electrode.
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申请公布号 |
US2010327348(A1) |
申请公布日期 |
2010.12.30 |
申请号 |
US20100818485 |
申请日期 |
2010.06.18 |
申请人 |
RENESAS ELECTRONICS CORPORATION |
发明人 |
HASHIMOTO TAKAYUKI;HIRAO TAKASHI;AKIYAMA NOBORU |
分类号 |
H01L27/06;H01L21/8234;H01L29/78 |
主分类号 |
H01L27/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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