发明授权
US06271096B1 Method and device for improved salicide resistance on polysilicon gates
有权
在多晶硅闸门上提高耐化学性的方法和装置
- 专利标题: Method and device for improved salicide resistance on polysilicon gates
- 专利标题(中): 在多晶硅闸门上提高耐化学性的方法和装置
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申请号: US09458537申请日: 1999-12-09
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公开(公告)号: US06271096B1公开(公告)日: 2001-08-07
- 发明人: Chia-Hong Jan , Julie A. Tsai , Simon Yang , Tahir Ghani , Kevin A. Whitehill , Steven J. Keating , Alan Myers
- 申请人: Chia-Hong Jan , Julie A. Tsai , Simon Yang , Tahir Ghani , Kevin A. Whitehill , Steven J. Keating , Alan Myers
- 主分类号: H01L21336
- IPC分类号: H01L21336
摘要:
A method and device for improved salicide resistance in polysilicon gates under 0.20 &mgr;m. The several embodiments of the invention provide for formation of gate electrode structures with recessed and partially recessed spacers. One embodiment, provides a gate electrode structure with recessed thick inner spacers and thick outer spacers. Another embodiment provides a gate electrode structure with recessed thin inner spacers and recessed thick outer spacers. Another embodiment provides a gate electrode structure with thin inner spacers and partially recessed outer spacers. Another embodiment provides a gate electrode structure with two spacer stacks. The outermost spacer stack with recessed thin inner spacers and recessed thick outer spacers. The inner spacer stack with thin inner spacers and thin outer spacers. Another embodiment provides a gate electrode structure with two spacer stacks. The outermost spacer stack with recessed thin inner spacers and recessed thick outer spacers. The inner spacer stack with recessed thin inner spacers and recessed thin outer spacers.
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