发明申请
- 专利标题: METHOD FOR FORMING TUNGSTEN FILM, FILM-FORMING APPARATUS, STORAGE MEDIUM AND SEMICONDUCTOR DEVICE
- 专利标题(中): 形成金属膜,成膜装置,储存介质和半导体器件的方法
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申请号: US11994339申请日: 2006-06-23
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公开(公告)号: US20090045517A1公开(公告)日: 2009-02-19
- 发明人: Masahito Sugiura , Yasutaka Mizoguchi , Yasushi Aiba
- 申请人: Masahito Sugiura , Yasutaka Mizoguchi , Yasushi Aiba
- 申请人地址: JP Tokyo
- 专利权人: Tokyo Electron Limited
- 当前专利权人: Tokyo Electron Limited
- 当前专利权人地址: JP Tokyo
- 优先权: JP2005-194170 20050701
- 国际申请: PCT/JP2006/312606 WO 20060623
- 主分类号: H01L23/52
- IPC分类号: H01L23/52 ; C23C16/44 ; H01L21/44
摘要:
A tungsten film with a lower specific resistance and a lower fluorine concentration over its boundary with the base barrier layer, which adheres to the barrier layer with a high level of reliability, compared to tungsten films formed through methods in the related art, is formed.The tungsten film is formed through a process in which a silicon-containing gas is delivered to a wafer M placed within a processing container 14 and a process executed after the silicon-containing gas supply process, in which a first tungsten film 70 is formed by alternately executing multiple times, a tungsten-containing gas supply step for supplying a tungsten-containing gas and a hydrogen compound gas supply step for supplying a hydrogen compound gas with no silicon content with a purge step in which an inert gas is supplied into the processing container and/or an evacuation step for evacuating the processing container executed between the tungsten-containing gas supply step and the hydrogen compound gas supply step.
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