发明授权
- 专利标题: Silicide gate transistors
- 专利标题(中): 硅化物栅极晶体管
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申请号: US09734185申请日: 2000-12-12
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公开(公告)号: US06465309B1公开(公告)日: 2002-10-15
- 发明人: Qi Xiang , Paul R. Besser , Matthew Buynoski , John C. Foster , Paul L. King , Eric N. Paton
- 申请人: Qi Xiang , Paul R. Besser , Matthew Buynoski , John C. Foster , Paul L. King , Eric N. Paton
- 主分类号: H01L21336
- IPC分类号: H01L21336
摘要:
A semiconductor structure and method for making the same provides a gate dielectric formed of oxynitride or a nitride/oxide stack formed within a recess. Amorphous silicon is deposited on the gate dielectric within the recess and a metal is deposited on the amorphous silicon. An annealing process forms a metal silicide gate within the recess on the gate dielectric. A wider range of metal materials can be selected because the gate dielectric formed of oxynitride or a nitride/oxide stack remains stable during the silicidation process. The metal silicide gate significantly reduces the sheet resistance between the gate and gate terminal.
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