发明授权
- 专利标题: Method of producing semiconductor device having a side wall film
- 专利标题(中): 具有侧壁膜的半导体器件的制造方法
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申请号: US159776申请日: 1993-12-02
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公开(公告)号: US5424237A公开(公告)日: 1995-06-13
- 发明人: Taiji Ema
- 申请人: Taiji Ema
- 申请人地址: JPX Kawasaki
- 专利权人: Fujitsu Limited
- 当前专利权人: Fujitsu Limited
- 当前专利权人地址: JPX Kawasaki
- 优先权: JPX62-286461 19871114
- 主分类号: H01L21/3205
- IPC分类号: H01L21/3205 ; H01L21/8242 ; H01L27/10 ; H01L27/108 ; H01L21/8232
摘要:
A semiconductor device includes a semiconductor substrate, an insulation film formed on the semiconductor substrate, a film formed on the insulation film having a side wall, and a side wall film formed on the insulation film so as to surround the side wall of the film. The side wall film has a slope and satisfies a condition a>d, where a is a width of a bottom surface of the side wall film which is in contact with the insulation film, and d is a thickness of the film.
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