← 返回 JSSC 论文列表JSSC 2006第11期Memory纳米技术SRAM
Read Stability and Write-Ability Analysis of SRAM Cells for Nanometer Technologi
分析纳米技术下SRAM单元的读稳定性和写能力,提出新的N曲线度量方法。
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SRAM读稳定性写能力纳米技术静态噪声容限
▸创新点1:引入基于N曲线的读稳定性新度量,该方法通过分析电流特性,提供了比传统静态噪声裕度(SNM)更全面的稳定性评估,显著提升了纳米级SRAM单元的可靠性。
▸创新点2:提出新的写能力度量方法,基于N曲线的电流信息,与传统写触发点定义相比,能够更精确地评估SRAM单元的写入性能,优化了设计流程。
▸创新点3:利用电流信息设计更稳定的单元,通过考虑电流特性,解决了纳米技术下SRAM单元缩放带来的稳定性问题,显著提高了单元的抗干扰能力。
▸创新点4:采用统计感知的电路优化方法,研究了芯片内变异对SRAM单元稳定性的影响,与传统的基于最坏情况的设计相比,提供了更精确的设计优化方案。
Abstract
SRAM cell read stability and write-ability are major
concerns in nanometer CMOS technologies, due to the progressive
increase in intra-die variability and
scaling. This paper ana-
lyzes the read stability N-curve metrics and compares them with
the commonly used static noise margin (SNM) metric defined by
Seevinck. Additionally, new write-ability metrics derived from the
same N-curve are introduced and compared with the traditional
write-trip point definition. Analytical models of all these metric