发明名称 Shielded gate trench MOSFET device and fabrication
摘要 A method for fabricating a semiconductor device includes forming a plurality of trenches, including applying a first mask, forming a first polysilicon region in at least some of the plurality of trenches, forming a inter-polysilicon dielectric region and a termination protection region, including applying a second mask, forming a second polysilicon region in the at least some of the plurality of trenches, forming a first electrical contact to the first polysilicon region and forming a second electrical contact to the second polysilicon region, including applying a third mask, disposing a metal layer, and forming a source metal region and a gate metal region, including applying a fourth mask.
申请公布号 US8236651(B2) 申请公布日期 2012.08.07
申请号 US20090583192 申请日期 2009.08.14
申请人 CHEN JOHN;LEE IL KWAN;CHANG HONG;LI WENJUN;BHALLA ANUP;YILMAZ HAMZA;ALPHA AND OMEGA SEMICONDUCTOR INCORPORATED 发明人 CHEN JOHN;LEE IL KWAN;CHANG HONG;LI WENJUN;BHALLA ANUP;YILMAZ HAMZA
分类号 H01L21/8234 主分类号 H01L21/8234
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