发明授权
US08669151B2 High-K metal gate electrode structures formed at different process stages of a semiconductor device
有权
在半导体器件的不同工艺阶段形成的高K金属栅电极结构
- 专利标题: High-K metal gate electrode structures formed at different process stages of a semiconductor device
- 专利标题(中): 在半导体器件的不同工艺阶段形成的高K金属栅电极结构
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申请号: US12909291申请日: 2010-10-21
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公开(公告)号: US08669151B2公开(公告)日: 2014-03-11
- 发明人: Jan Hoentschel , Sven Beyer , Thilo Scheiper , Uwe Griebenow
- 申请人: Jan Hoentschel , Sven Beyer , Thilo Scheiper , Uwe Griebenow
- 申请人地址: KY Grand Cayman
- 专利权人: GLOBALFOUNDRIES Inc.
- 当前专利权人: GLOBALFOUNDRIES Inc.
- 当前专利权人地址: KY Grand Cayman
- 代理机构: Amerson Law Firm, PLLC
- 优先权: DE102009055392 20091230
- 主分类号: H01L21/8234
- IPC分类号: H01L21/8234
摘要:
Sophisticated high-k metal gate electrode structures are provided on the basis of a hybrid process strategy in which the work function of certain gate electrode structures is adjusted in an early manufacturing stage, while, in other gate electrode structures, the initial gate stack is used as a dummy material and is replaced in a very advanced manufacturing stage. In this manner, superior overall process robustness in combination with enhanced device performance may be achieved.
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