Invention Grant
- Patent Title: finFET drive strength modification
- Patent Title (中): finFET驱动强度修改
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Application No.: US12483133Application Date: 2009-06-11
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Publication No.: US08283231B2Publication Date: 2012-10-09
- Inventor: Thomas Merelle , Gerben Doornbos , Robert James Pascoe Lander
- Applicant: Thomas Merelle , Gerben Doornbos , Robert James Pascoe Lander
- 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: Haynes and Boone, LLP
- Priority: EP08104375 20080611
- Main IPC: H01L27/088
- IPC: H01L27/088 ; H01L21/336

Abstract:
A method and circuit in which the drive strength of a FinFET transistor can be selectively modified, and in particular can be selectively reduced, by omitting the LDD extension formation in the source and/or in the drain of the FinFET.One application of this approach is to enable differentiation of the drive strengths of transistors in an integrated circuit by applying the technique to some, but not all, of the transistors in the integrated circuit. In particular in a SRAM cell formed from FinFET transistors the application of the technique to the pass-gate transistors, which leads to a reduction of the drive strength of the pass-gate transistors relative to the drive strength of the pull-up and pull-down transistors, results in improved SRAM cell performance.
Public/Granted literature
- US20100006945A1 FINFET DRIVE STRENGTH MODIFICATION Public/Granted day:2010-01-14
Information query
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