发明申请
- 专利标题: Semiconductor device and manufacturing method thereof
- 专利标题(中): 半导体装置及其制造方法
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申请号: US11133266申请日: 2005-05-20
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公开(公告)号: US20050212020A1公开(公告)日: 2005-09-29
- 发明人: Kazutoshi Izumi , Hitoshi Saito , Naoya Sashida , Kaoru Saigoh , Kouichi Nagai
- 申请人: Kazutoshi Izumi , Hitoshi Saito , Naoya Sashida , Kaoru Saigoh , Kouichi Nagai
- 申请人地址: JP Kawasaki
- 专利权人: FUJITSU LIMITED
- 当前专利权人: FUJITSU LIMITED
- 当前专利权人地址: JP Kawasaki
- 主分类号: H01L21/8246
- IPC分类号: H01L21/8246 ; H01L27/115 ; H01L29/76
摘要:
An insulation film (24) having a gradual inclination of a surface is formed by a high density plasma CVD method, an atmospheric pressure CVD method or the like, after a ferroelectric capacitor (23) is formed. Thereafter, an alumina film (25) is formed on the insulation film (24). According to the method, low coverage of the alumina film (25) does not become a problem, and the ferroelectric capacitor (23) is reliably protected.
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