发明申请
- 专利标题: Dual Silicide Process
- 专利标题(中): 双硅化工艺
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申请号: US13755427申请日: 2013-01-31
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公开(公告)号: US20140210011A1公开(公告)日: 2014-07-31
- 发明人: Ashish K. Baraskar , Cyril Cabral , Siyuranga O. Koswatta , Christian Lavoie , Ahmet S. Ozcan , Li Yang , Zhen Zhang
- 申请人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 申请人地址: KY Ugland House US NY Armonk
- 专利权人: GLOBALFOUNDRIES Inc,International Business Machines Corporation
- 当前专利权人: GLOBALFOUNDRIES Inc,International Business Machines Corporation
- 当前专利权人地址: KY Ugland House US NY Armonk
- 主分类号: H01L21/8238
- IPC分类号: H01L21/8238 ; H01L27/092
摘要:
In one aspect, a method for silicidation includes the steps of: (a) providing a wafer having at least one first active area and at least one second active area defined therein; (b) masking the first active area with a first hardmask; (c) doping the second active area; (d) forming a silicide in the second active area, wherein the first hardmask serves to mask the first active area during both the doping step (c) and the forming step (d); (e) removing the first hardmask; (f) masking the second active area with a second hardmask; (g) doping the first active area; (h) forming a silicide in the first active area, wherein the second hardmask serves to mask the second active area during both the doping step (g) and the forming step (h); and (i) removing the second hardmask.
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