发明授权
US08343839B2 Scaled equivalent oxide thickness for field effect transistor devices
有权
场效应晶体管器件的等效氧化物厚度变化
- 专利标题: Scaled equivalent oxide thickness for field effect transistor devices
- 专利标题(中): 场效应晶体管器件的等效氧化物厚度变化
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申请号: US12788454申请日: 2010-05-27
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公开(公告)号: US08343839B2公开(公告)日: 2013-01-01
- 发明人: Takashi Ando , Changhwan Choi , Unoh Kwon , Vijay Narayanan
- 申请人: Takashi Ando , Changhwan Choi , Unoh Kwon , Vijay Narayanan
- 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: Cantor Colburn LLP
- 代理商 Vazken Alexanian
- 主分类号: H01L21/8236
- IPC分类号: H01L21/8236
摘要:
A method for forming a field effect transistor device includes forming an oxide layer on a substrate, forming a dielectric layer on the oxide layer, forming a first TiN layer on the dielectric layer, forming a metallic layer on the first layer, forming a second TiN layer on the metallic layer, removing a portion of the first TiN layer, the metallic layer, and the second TiN layer to expose a portion of the dielectric layer, forming a layer of stoichiometric TiN on the exposed portion of the dielectric layer and the second TiN layer, heating the device, and forming a polysilicon layer on the device.
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