发明申请
- 专利标题: METHOD FOR DEPOSITING TUNGSTEN-CONTAINING LAYERS BY VAPOR DEPOSITION TECHNIQUES
- 专利标题(中): 通过蒸发沉积技术沉积含钨层的方法
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申请号: US11461909申请日: 2006-08-02
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公开(公告)号: US20060264031A1公开(公告)日: 2006-11-23
- 发明人: Ming Xi , Ashok Sinha , Moris Kori , Alfred Mak , Xinliang Lu , Ken Lai , Karl Littau
- 申请人: Ming Xi , Ashok Sinha , Moris Kori , Alfred Mak , Xinliang Lu , Ken Lai , Karl Littau
- 主分类号: H01L21/4763
- IPC分类号: H01L21/4763
摘要:
In one embodiment, a method for forming a tungsten-containing material on a substrate is provided which includes forming a tungsten nucleation layer by sequentially exposing a substrate to a boron-containing gas and a tungsten-containing gas within a processing chamber during an atomic layer deposition process, and forming a tungsten bulk layer on the tungsten nucleation layer by exposing the substrate to a processing gas that contains the tungsten-containing gas and a reactive precursor gas within another processing chamber during a chemical vapor deposition process. In one example, the tungsten nucleation layer is deposited on a dielectric material, such as silicon oxide. In another example, the tungsten nucleation layer is deposited on a barrier material, such as titanium or titanium nitride. Other examples provide that the tungsten nucleation layer and the tungsten bulk layer are deposited in the same processing chamber.
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