发明授权
US07858518B2 Method for forming a selective contact and local interconnect in situ
有权
在原位形成选择性接触和局部互连的方法
- 专利标题: Method for forming a selective contact and local interconnect in situ
- 专利标题(中): 在原位形成选择性接触和局部互连的方法
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申请号: US10067410申请日: 2002-02-04
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公开(公告)号: US07858518B2公开(公告)日: 2010-12-28
- 发明人: Christopher W. Hill , Weimin Li , Gurtej S. Sandhu
- 申请人: Christopher W. Hill , Weimin Li , Gurtej S. Sandhu
- 申请人地址: US ID Boise
- 专利权人: Micron Technology, Inc.
- 当前专利权人: Micron Technology, Inc.
- 当前专利权人地址: US ID Boise
- 代理机构: TraskBritt
- 主分类号: H01L21/4763
- IPC分类号: H01L21/4763
摘要:
A process for the in situ formation of a selective contact and a local interconnect on a semiconductor substrate. The exposed semiconductor substrate regions of a semiconductor device structure may be treated in a plasma to enhance the adhesiveness of a selective contact thereto. The semiconductor device structure is positioned within a reaction chamber, wherein a selective contact is deposited onto the exposed semiconductor substrate regions. Any residual selective contact material may be removed from oxide surfaces either intermediately or after selective contact deposition. While the semiconductor device remains in the reaction chamber, a local interconnect is deposited over the semiconductor device structure. The local interconnect may then be patterned. Subsequent layers may be deposited over the local interconnect. The present invention also includes semiconductor device structures formed by the inventive process.
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