Invention Grant
US08089122B2 Vertical trench gate transistor semiconductor device and method for fabricating the same 有权
垂直沟槽栅晶体管半导体器件及其制造方法

Vertical trench gate transistor semiconductor device and method for fabricating the same
Abstract:
A first region functioning as a transistor includes a drain region, a body region formed over the drain region, a source region formed over the body region and a trench formed through the body region and having a gate electrode buried therein. A source region is formed over the body region extending in a second region. The source region forming an upper edge of the trench is rounded.
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