发明授权
US07354830B2 Methods of forming semiconductor devices with high-k gate dielectric
有权
用高k栅极电介质形成半导体器件的方法
- 专利标题: Methods of forming semiconductor devices with high-k gate dielectric
- 专利标题(中): 用高k栅极电介质形成半导体器件的方法
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申请号: US11377105申请日: 2006-03-16
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公开(公告)号: US07354830B2公开(公告)日: 2008-04-08
- 发明人: Chun-Chieh Lin , Wen-Chin Lee , Chenming Hu , Shang-Chih Chen , Chih-Hao Wang , Fu-Liaog Yang , Yee-Chia Yeo
- 申请人: Chun-Chieh Lin , Wen-Chin Lee , Chenming Hu , Shang-Chih Chen , Chih-Hao Wang , Fu-Liaog Yang , Yee-Chia Yeo
- 申请人地址: TW Hsin-Chu
- 专利权人: Taiwan Semiconductor Manufacturing Company, Ltd.
- 当前专利权人: Taiwan Semiconductor Manufacturing Company, Ltd.
- 当前专利权人地址: TW Hsin-Chu
- 代理机构: Slater & Matsil, L.L.P.
- 主分类号: H01L21/8234
- IPC分类号: H01L21/8234
摘要:
A method of fabricating an integrated circuit is provided. A first gate dielectric portion is formed on a substrate in a first transistor region. The first gate dielectric portion includes a first high-permittivity dielectric material. The first gate dielectric portion has a first equivalent silicon oxide thickness. A second gate dielectric portion is formed on the substrate in a second transistor region. The second gate dielectric portion includes the first high-permittivity dielectric material. The second gate dielectric portion has a second equivalent silicon oxide thickness. The second equivalent silicon oxide thickness is different than the first equivalent silicon oxide thickness.
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