发明授权
- 专利标题: Metal silicide formation
- 专利标题(中): 金属硅化物形成
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申请号: US12915917申请日: 2010-10-29
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公开(公告)号: US08580680B2公开(公告)日: 2013-11-12
- 发明人: Tuung Luoh , Sheng Hui Hsieh , Ricky Huang , Chin-Ta Su , Tahone Yang , Kuang-Chao Chen
- 申请人: Tuung Luoh , Sheng Hui Hsieh , Ricky Huang , Chin-Ta Su , Tahone Yang , Kuang-Chao Chen
- 申请人地址: TW
- 专利权人: Macronix International Co., Ltd.
- 当前专利权人: Macronix International Co., Ltd.
- 当前专利权人地址: TW
- 代理机构: Baker & McKenzie LLP
- 主分类号: H01L21/44
- IPC分类号: H01L21/44
摘要:
Techniques for forming metal silicide contact pads on semiconductor devices are disclosed, and in one exemplary embodiment, a method may comprise depositing a metal layer on and between a plurality of raised silicon-based features formed on a semiconductor substrate, the metal layer comprising metal capable of reacting with external silicon-based portions of the features to form a metal silicide. In addition, such a method may also include depositing a cap layer on the metal layer deposited on and between the plurality of raised silicon-based features, wherein a thickness of the cap layer on the metal layer between the raised features is greater than or equal to a thickness of the cap layer on the metal layer on the raised features. Furthermore, such a method may also include annealing the structure to cause portions of the metal layer to react with portions of the external silicon-based portions of the features to form metal silicide pads on and between the raised features.
公开/授权文献
- US20120104516A1 METAL SILICIDE FORMATION 公开/授权日:2012-05-03
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