Statistical analysis of SRAM cell stability

被引:115
作者
Agarwal, Kanak [1 ]
Nassif, Sani [1 ]
机构
[1] IBM Res, Austin, TX 78758 USA
来源
43RD DESIGN AUTOMATION CONFERENCE, PROCEEDINGS 2006 | 2006年
关键词
performance; design; reliability; SRAM; stability; noise margin; modeling;
D O I
10.1109/DAC.2006.229176
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
The impact of process variation on SRAM yield has become a serious concern in scaled technologies. In this paper, we propose a methodology to analyze the stability of an SRAM cell in the presence of random fluctuations in the device parameters. We provide a theoretical framework for characterizing the DC noise margin of a memory cell and develop models for estimating the cell failure probabilities during read and write operations. The proposed models are verified against extensive Monte-Carlo simulations and are shown to match well over the entire range of the distributions well beyond the 3-sigma extremes.
引用
收藏
页码:57 / +
页数:2
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