发明授权
- 专利标题: Method for protecting a gate structure during contact formation
- 专利标题(中): 在接触形成期间保护栅极结构的方法
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申请号: US12428011申请日: 2009-04-22
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公开(公告)号: US08202776B2公开(公告)日: 2012-06-19
- 发明人: Hong-Dyi Chang , Pei-Chao Su , Kong-Beng Thei , Hun-Jan Tao , Harry Hak-Lay Chuang
- 申请人: Hong-Dyi Chang , Pei-Chao Su , Kong-Beng Thei , Hun-Jan Tao , Harry Hak-Lay Chuang
- 申请人地址: TW Hsin-Chu
- 专利权人: Taiwan Semiconductor Manufacturing Company, Ltd.
- 当前专利权人: Taiwan Semiconductor Manufacturing Company, Ltd.
- 当前专利权人地址: TW Hsin-Chu
- 代理机构: Hayne and Boone, LLP
- 主分类号: H01L21/8238
- IPC分类号: H01L21/8238
摘要:
A method for fabricating a semiconductor device is disclosed. The method includes providing a substrate; forming at least one gate structure over the substrate; forming a plurality of doped regions in the substrate; forming an etch stop layer over the substrate; removing a first portion of the etch stop layer, wherein a second portion of the etch stop layer remains over the plurality of doped regions; forming a hard mask layer over the substrate; removing a first portion of the hard mask layer, wherein a second portion of the hard mask layer remains over the at least one gate structure; and forming a first contact through the second portion of the hard mask layer to the at least one gate structure, and a second contact through the second portion of the etch stop layer to the plurality of doped regions.
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