发明授权
- 专利标题: Semiconductor device and method of manufacturing the same
- 专利标题(中): 半导体装置及其制造方法
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申请号: US12285748申请日: 2008-10-14
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公开(公告)号: US07745232B2公开(公告)日: 2010-06-29
- 发明人: Naoya Sashida
- 申请人: Naoya Sashida
- 申请人地址: JP Yokohama
- 专利权人: Fujitsu Semiconductor Limited
- 当前专利权人: Fujitsu Semiconductor Limited
- 当前专利权人地址: JP Yokohama
- 代理机构: Westerman, Hattori, Daniels & Adrian, LLP
- 优先权: JP2001-350323 20011115
- 主分类号: H01L21/8239
- IPC分类号: H01L21/8239
摘要:
According to the present invention, contact plugs are formed by a CVD method without deteriorating the properties of the ferroelectric capacitor in a semiconductor device having a fine ferroelectric capacitor. Adhesive film is formed in a contact hole, which exposes an upper electrode of the ferroelectric capacitor after conducting heat treatment in an oxidizing atmosphere, and a W layer is deposited by the CVD method using such TiN adhesive film as a hydrogen barrier and the contact hole is filled.
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