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Vertical field-effect transistor including a fin having sidewalls with a tapered bottom profile
Vertical field-effect transistor including a fin having sidewalls with a tapered bottom profile
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机译:垂直场效应晶体管,包括鳍片,该鳍片的侧壁具有锥形的底部轮廓
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摘要
A method of forming a semiconductor structure includes forming at least one fin disposed over a substrate, wherein sidewalls of the at least one fin includes a first portion proximate a top surface of the substrate having a tapered profile and a second portion disposed above the first portion. The method also includes forming a bottom source/drain region surrounding at least part of the first portion of the sidewalls of the at least one fin having the tapered profile and forming a bottom spacer disposed over a top surface of the bottom source/drain region surrounding at least part of the second portion of the sidewalls of the at least one fin. The at least one fin provides a channel for a vertical field-effect transistor.
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