- Patent Title: Circuits for improving read and write margins in multi-port SRAMS
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Application No.: US11598385Application Date: 2006-11-13
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Publication No.: US07468903B2Publication Date: 2008-12-23
- Inventor: Dao-Ping Wang , Hung-Jen Liao , Kun Lung Chen , Yung-Lung Lin , Jui-Jen Wu , Chen Yen-Huei
- Applicant: Dao-Ping Wang , Hung-Jen Liao , Kun Lung Chen , Yung-Lung Lin , Jui-Jen Wu , Chen Yen-Huei
- Applicant Address: TW Hsin-Chu
- Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee Address: TW Hsin-Chu
- Agency: K & L Gates LLP
- Main IPC: G11C11/00
- IPC: G11C11/00

Abstract:
A system and method for writing a SRAM cell coupled to complimentary first and second bit-lines (BLs) is disclosed, the method comprising asserting a word-line (WL) selecting the SRAM cell to a first positive voltage, providing a second positive voltage at the first BL, providing a first negative voltage at the second BL, and asserting a plurality of WLs not selecting the SRAM cell to a second negative voltage, wherein the writing margin of the SRAM cell is increased.
Public/Granted literature
- US20080112212A1 Circuits for improving read and write margins in multi-port SRAMS Public/Granted day:2008-05-15
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