发明申请
- 专利标题: SELECTIVE SILICIDE FORMATION USING RESIST ETCH BACK
- 专利标题(中): 选择性硅胶形成使用耐蚀蚀回填
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申请号: US12644457申请日: 2009-12-22
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公开(公告)号: US20100099249A1公开(公告)日: 2010-04-22
- 发明人: Kyunghoon Min , Angela Hui , Hiroyuki Kinoshita , Ning Cheng , Mark Chang
- 申请人: Kyunghoon Min , Angela Hui , Hiroyuki Kinoshita , Ning Cheng , Mark Chang
- 申请人地址: US CA Sunnyvale
- 专利权人: SPANSION LLC
- 当前专利权人: SPANSION LLC
- 当前专利权人地址: US CA Sunnyvale
- 主分类号: H01L21/285
- IPC分类号: H01L21/285 ; H01L21/3205
摘要:
Methods of selectively forming metal silicides on a memory device are provided. The methods can include forming a mask layer over the memory device; forming a patterned resist over the mask layer; removing upper portions of the patterned resist; forming a patterned mask layer by removing portions of the mask layer that are not covered by the patterned resist; and forming metal silicides on the memory device by a chemical reaction of a metal layer formed on the memory device with portions of the memory device that are not covered by the patterned mask layer. By preventing silicidation of underlying silicon containing layers/components of the memory device that are covered by the patterned mask layer, the methods can selectively form the metal silicides on the desired portions of the memory device.
公开/授权文献
- US08445372B2 Selective silicide formation using resist etch back 公开/授权日:2013-05-21
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