Invention Grant
- Patent Title: Passive SRAM write assist
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Application No.: US14137291Application Date: 2013-12-20
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Publication No.: US09767891B2Publication Date: 2017-09-19
- Inventor: Yifei Zhang , Myron Buer , Mark Winter
- Applicant: Avago Technologies General IP (Singapore) Pte. Ltd.
- Applicant Address: SG Singapore
- Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
- Current Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
- Current Assignee Address: SG Singapore
- Agency: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- Main IPC: G11C11/419
- IPC: G11C11/419

Abstract:
Passive write assist passively improves SRAM performance (e.g., write margin speed) while reducing manufacturing costs (e.g., die area, packaging) and operating costs (e.g., power consumption, cooling) associated with active write assist schemes. Passive write assist may be implemented in peripheral circuitry or embedded in an SRAM array or even in each array cell or bitcell. For example, one or more memory cells may be converted to provide passive write assist to a plurality of other memory cells. As another example, each memory cell may independently implement passive write assist using one or more high resistive contacts to couple to the array power supply, resulting in the array voltage level being changed by different amounts in different memory cells according to cell variations.
Public/Granted literature
- US20150146476A1 PASSIVE SRAM WRITE ASSIST Public/Granted day:2015-05-28
Information query
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