发明申请
- 专利标题: METHOD FOR FORMING A GATE INSULATING FILM
- 专利标题(中): 形成绝缘膜的方法
-
申请号: US12349192申请日: 2009-01-06
-
公开(公告)号: US20090181549A1公开(公告)日: 2009-07-16
- 发明人: Kenji Yoneda , Kazuhiko Yamamoto
- 申请人: Kenji Yoneda , Kazuhiko Yamamoto
- 优先权: JP2008-003336 20080110
- 主分类号: H01L21/469
- IPC分类号: H01L21/469
摘要:
In formation of a gate insulating film made of a high dielectric constant metal silicate, atomic layer deposition (ALD) is performed by setting exposure time to a precursor containing a metal or the like to saturation time of a deposition rate by a surface adsorption reaction and by setting exposure time to an oxidizing agent to time required for a composition of a metal oxide film to reach 97% or more of a stoichiometric value.
公开/授权文献
- US07727911B2 Method for forming a gate insulating film 公开/授权日:2010-06-01
信息查询
IPC分类: