Invention Grant
- Patent Title: Asymmetric sense amplifier
- Patent Title (中): 不对称读出放大器
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Application No.: US12347867Application Date: 2008-12-31
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Publication No.: US08027214B2Publication Date: 2011-09-27
- Inventor: Shu-Hsuan Lin , Yi-Tzu Chen
- Applicant: Shu-Hsuan Lin , Yi-Tzu Chen
- 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: G11C7/02
- IPC: G11C7/02

Abstract:
Sensing circuits for determining the state of memory cells include a sense amplifier. The sense amplifier includes an imbalanced cross-coupled latch (ICL), a first gate field effect transistor (FET) between a bit line (BL) and a first output node, and a second gate FET between a bit line inverse (BLB) and a second output node. The ICL includes a first pull down FET between the first output node and an enable FET connected to electrical ground, and a second pull down FET between the second output node and the enable FET. Channel widths of the second pull down FET and the second gate FET are greater than channel widths of the first pull down FET and the first gate FET to enhance the ability to detect a one (1) and a zero (0) stored in a memory cell connected to the sense amplifier.
Public/Granted literature
- US20100165767A1 Asymmetric Sense Amplifier Public/Granted day:2010-07-01
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