发明授权
US6124172A Method of making a semiconductor device having source/drain structures
with self-aligned heavily-doped and lightly-doped regions
失效
制造具有自对准重掺杂和轻掺杂区域的源极/漏极结构的半导体器件的方法
- 专利标题: Method of making a semiconductor device having source/drain structures with self-aligned heavily-doped and lightly-doped regions
- 专利标题(中): 制造具有自对准重掺杂和轻掺杂区域的源极/漏极结构的半导体器件的方法
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申请号: US163688申请日: 1998-09-30
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公开(公告)号: US6124172A公开(公告)日: 2000-09-26
- 发明人: Mark I. Gardner , Mark C. Gilmer
- 申请人: Mark I. Gardner , Mark C. Gilmer
- 申请人地址: CA Sunnyvale
- 专利权人: Advanced Micro Devices, Inc.
- 当前专利权人: Advanced Micro Devices, Inc.
- 当前专利权人地址: CA Sunnyvale
- 主分类号: H01L21/266
- IPC分类号: H01L21/266 ; H01L21/28 ; H01L21/336 ; H01L21/331 ; H01L21/335
摘要:
A method of making a semiconductor device includes forming gate electrode over a substrate and a protective layer over the gate electrode. A portion of the protective layer is selectively removed to expose a peripheral region of the gate electrode. A remainder of the protective layer remains disposed over a central region of the gate electrode. An upper portion of the peripheral region of the gate electrode is then removed typically leaving an underlying portion. Often, a dopant material is implanted into the substrate adjacent to and beneath the underlying portion to simultaneously form lightly-doped and heavily-doped regions beneath and adjacent to the underlying portion, respectively. In addition, all or part of the underlying portion may be oxidized to provide a gate electrode with reduced width.
公开/授权文献
- US5345986A Auxiliary router guide 公开/授权日:1994-09-13
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