Invention Grant
US07868386B2 Method and apparatus for semiconductor device with improved source/drain junctions
有权
具有改善的源极/漏极结的半导体器件的方法和装置
- Patent Title: Method and apparatus for semiconductor device with improved source/drain junctions
- Patent Title (中): 具有改善的源极/漏极结的半导体器件的方法和装置
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Application No.: US12058997Application Date: 2008-03-31
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Publication No.: US07868386B2Publication Date: 2011-01-11
- Inventor: Kong-Beng Thei , Chung Long Cheng , Harry Chuang
- Applicant: Kong-Beng Thei , Chung Long Cheng , Harry Chuang
- Applicant Address: TW Hsin-Chu
- Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee Address: TW Hsin-Chu
- Agency: Slater & Matsil, L.L.P.
- Main IPC: H01L23/58
- IPC: H01L23/58 ; H01L29/76 ; H01L29/94

Abstract:
A semiconductor device with improved source/drain junctions and methods for fabricating the device are disclosed. A preferred embodiment comprises a MOS transistor with a gate structure overlying a substrate, lightly doped source/drain regions formed in the substrate aligned to the gate structure, sidewall spacers formed on the sidewalls of the gate structure and overlying the lightly doped source/drain regions, deeper source/drain diffusions formed into the substrate aligned to the sidewall spacers and additional pocket implants of source/drain dopants formed at the boundary of the deeper source/drain diffusions and the substrate. In a preferred method, the additional pocket implants are formed using an angled ion implant with the angle being between 4 and 45 degrees from vertical. Additional embodiments include recesses formed in the source/drain regions and methods for forming the recesses.
Public/Granted literature
- US20080179688A1 Method and Apparatus for Semiconductor Device with Improved Source/Drain Junctions Public/Granted day:2008-07-31
Information query
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