发明授权
US07977243B2 Barrier metal film production apparatus, barrier metal film production method, metal film production method, and metal film production apparatus
有权
阻隔金属膜制造装置,阻隔金属膜制造方法,金属膜制造方法以及金属膜制造装置
- 专利标题: Barrier metal film production apparatus, barrier metal film production method, metal film production method, and metal film production apparatus
- 专利标题(中): 阻隔金属膜制造装置,阻隔金属膜制造方法,金属膜制造方法以及金属膜制造装置
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申请号: US12693589申请日: 2010-01-26
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公开(公告)号: US07977243B2公开(公告)日: 2011-07-12
- 发明人: Hitoshi Sakamoto , Naoki Yahata , Ryuichi Matsuda , Yoshiyuki Ooba , Toshihiko Nishimori
- 申请人: Hitoshi Sakamoto , Naoki Yahata , Ryuichi Matsuda , Yoshiyuki Ooba , Toshihiko Nishimori
- 申请人地址: JP Kawasaki-shi
- 专利权人: Canon Anelva Corporation
- 当前专利权人: Canon Anelva Corporation
- 当前专利权人地址: JP Kawasaki-shi
- 代理机构: Fitzpatrick, Cella, Harper & Scinto
- 优先权: JP2001-348325 20011114; JP2002-027738 20020205; JP2002-044289 20020221; JP2002-044296 20020221
- 主分类号: H01L21/311
- IPC分类号: H01L21/311
摘要:
A Cl2 gas plasma is generated at a site within a chamber between a substrate and a metal member. The metal member is etched with the Cl2 gas plasma to form a precursor. A nitrogen gas is excited in a manner isolated from the chamber accommodating the substrate. A metal nitride is formed upon reaction between excited nitrogen and the precursor, and formed as a film on the substrate. After film formation of the metal nitride, a metal component of the precursor is formed as a film on the metal nitride on the substrate. In this manner, a barrier metal film with excellent burial properties and a very small thickness is produced at a high speed, with diffusion of metal being suppressed and adhesion to the metal being improved.
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