发明授权
- 专利标题: Fabrication method of a semiconductor device using liquid repellent film
- 专利标题(中): 使用防液膜的半导体器件的制造方法
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申请号: US10954286申请日: 2004-10-01
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公开(公告)号: US07399704B2公开(公告)日: 2008-07-15
- 发明人: Gen Fujii , Shinji Maekawa
- 申请人: Gen Fujii , Shinji Maekawa
- 申请人地址: JP Kanagawa-Ken
- 专利权人: Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人: Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人地址: JP Kanagawa-Ken
- 代理机构: Nixon Peabody LLP
- 代理商 Jeffrey L. Costellia
- 优先权: JP2003-344880 20031002
- 主分类号: H01L21/44
- IPC分类号: H01L21/44
摘要:
In the case where a contact hole is formed by a conventional process of the semiconductor device fabrication, a resist is required to be formed almost entirely over a substrate in order to form the resist over the film where the contact hole is not formed. Accordingly, the throughput is considerably low. Further, when the resist spreads to the area of the contact hole when the amount of the resist to be applied and the surface state of the base are not fully controlled, contact defect would occur. Thus, improvements are required. According to the invention, in forming a semiconductor device, a part to be a contact hole of the semiconductor device may be covered with a first organic film that is liquid repellent. Subsequently, a second organic film serving as an insulating film is formed on the area where the first organic film is not formed, and the first organic film is removed thereafter to form a contact hole.
公开/授权文献
- US20050074963A1 Fabrication method of a semiconductor device 公开/授权日:2005-04-07
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