Invention Grant
- Patent Title: Asymmetrical memory cells and memories using the cells
- Patent Title (中): 不对称存储单元和使用单元的存储器
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Application No.: US11392071Application Date: 2006-03-29
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Publication No.: US07362606B2Publication Date: 2008-04-22
- Inventor: Ching-Te Chuang , Jae-Joon Kim , Keunwoo Kim
- Applicant: Ching-Te Chuang , Jae-Joon Kim , Keunwoo Kim
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Ryan, Mason & Lewis, LLP
- Main IPC: G11C11/00
- IPC: G11C11/00

Abstract:
Techniques are provided for asymmetrical SRAM cells which can be improved, for example, by providing one or more of improved read stability and improved write performance and margin. A first inverter and a second inverter are cross-coupled and configured for selective coupling to true and complementary bit lines under control of read and write word lines. The first inverter is formed by a first, n-type, FET (NFET) and a second, p-type, FET (PFET). Process and/or technology approaches can be employed to adjust the relative strength of the FETS to obtain, for example, read margin, write margin, and/or write performance improvements.
Public/Granted literature
- US20070236982A1 Asymmetrical memory cells and memories using the cells Public/Granted day:2007-10-11
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