发明授权
- 专利标题: Thin gate electrode CMOS devices and methods of fabricating same
- 专利标题(中): 薄栅极CMOS器件及其制造方法
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申请号: US11780519申请日: 2007-07-20
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公开(公告)号: US07906390B2公开(公告)日: 2011-03-15
- 发明人: Jack A. Mandelman , William Robert Tonti
- 申请人: Jack A. Mandelman , William Robert Tonti
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理机构: Schmeiser, Olsen & Watts
- 代理商 David Cain
- 主分类号: H01L21/8238
- IPC分类号: H01L21/8238
摘要:
A CMOS device and method of forming the CMOS device. The device including a source and a drain formed in a semiconductor substrate, the source and the drain and separated by a channel region of the substrate; a gate dielectric formed on a top surface of the substrate and a very thin metal or metal alloy gate electrode formed on a top surface of the gate dielectric layer, a polysilicon line abutting and in electrical contact with the gate electrode, the polysilicon line thicker than the gate electrode. The method including, forming the gate electrode by forming a trench above the channel region and depositing metal into the trench.
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