发明名称 Method of manufacturing semiconductor device having dual gate electrode
摘要 Manufacturing of semiconductor device includes forming, at substrate main surface, PMOS and NMOS regions separated by PN film. Polysilicon is formed at surface. First insulating film serves as gate insulating film. Second insulating film is formed on polysilicon surface, in gate electrode region extending from PMOS to NMOS regions across PN film. Polysilicon layer is patterned with second insulating film, and first gate electrode extends from PMOS region surface to PN and second gate electrode extends from NMOS region to PN connecting to first gate electrode. At main surface, opposed first source and drain regions are formed by placing first gate electrode therebetween in plan view. At main surface, opposed second source and drain regions are formed by placing second gate electrode therebetween in plan view. The second insulating film, covering first and second gate electrodes is patterned and exposed on PN. Exposed first and second gate electrodes are silicidized.
申请公布号 US7485522(B2) 申请公布日期 2009.02.03
申请号 US20070980551 申请日期 2007.10.31
申请人 发明人
分类号 H01L21/8238 主分类号 H01L21/8238
代理机构 代理人
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