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Self-aligned metal gate with poly silicide for vertical transport field-effect transistors
Self-aligned metal gate with poly silicide for vertical transport field-effect transistors
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机译:用于垂直运输场效应晶体管的具有多硅化物的自对准金属栅极
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摘要
A method of forming a semiconductor structure includes forming an interfacial layer surrounding at least one channel stack, forming a high-k dielectric layer surrounding the interfacial layer, and forming a metal gate layer surrounding the high-k dielectric layer. The method also includes forming a silicon layer over the metal gate layer and forming at least one additional metal layer over the silicon layer. The method further includes performing silicidation to transform at least a portion of the at least one additional metal layer and at least a portion of the silicon layer into a silicide layer. The metal gate layer, the silicon layer and the silicide layer form at least one gate electrode for a vertical transport field-effect transistor (VTFET).
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