发明申请
US20080173942A1 STRUCTURE AND METHOD OF MANUFACTURING A STRAINED FinFET WITH STRESSED SILICIDE
审中-公开
具有应力硅化物的应变FinFET的结构和方法
- 专利标题: STRUCTURE AND METHOD OF MANUFACTURING A STRAINED FinFET WITH STRESSED SILICIDE
- 专利标题(中): 具有应力硅化物的应变FinFET的结构和方法
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申请号: US11625431申请日: 2007-01-22
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公开(公告)号: US20080173942A1公开(公告)日: 2008-07-24
- 发明人: Huilong Zhu , Siddhartha Panda , Jay W. Strane , Sey-Ping Sun , Brian L. Tessier
- 申请人: Huilong Zhu , Siddhartha Panda , Jay W. Strane , Sey-Ping Sun , Brian L. Tessier
- 申请人地址: US NY Armonk US CA Sunnyvale
- 专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION,ADVANCED MICRO DEVICES, INC.
- 当前专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION,ADVANCED MICRO DEVICES, INC.
- 当前专利权人地址: US NY Armonk US CA Sunnyvale
- 主分类号: H01L29/786
- IPC分类号: H01L29/786 ; H01L21/336
摘要:
A stressed semiconductor structure including at least one FinFET device on a surface of a substrate, typically a buried insulating layer of an initial semiconductor-on-insulator substrate, is provided. In a preferred embodiment, the at least one FinFET device includes a semiconductor Fin that is located on an unetched portion of the buried insulator layer which has a raised height as compared to an adjacent and adjoining etched portion of the buried insulating layer. The semiconductor Fin includes a gate dielectric on its sidewalls and optionally a hard mask located on an upper surface thereof. The inventive structure also includes a gate conductor, which is located on the surface of the substrate, typically the buried insulating layer, and the gate conductor is at least laterally adjacent to the gate dielectric located on the sidewalls of the semiconductor Fin. A stressed silicide is located on the gate conductor, which introduces stress into the channel of the FinFET device. The stressed silicide memorizes the stress from a sacrificial stressed film that is formed prior to forming the stressed silicide. The stress type of the stressed film is introduced into the silicide during a silicide anneal step.
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