Variation-tolerant design of D-flipflops

Variation-tolerant design of D-flipflops
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D 触发器的容变设计

DOI:
10.1109/socc.2010.5784732
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发表时间:
2010
期刊:
23rd IEEE International SOC Conference
影响因子:
--
通讯作者:
H. Onodera
H. Onodera
中科院分区:
--
文献类型:
--
作者:
Hiroki Sunagawa;H. Onodera

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本文讨论了d触发器(D-FF)在模内(WID)变化下的脆弱性。研究了WID变异性对D-FF时序特性的影响,发现D-FF的设置时间大于最坏拐角条件下的设置时间。为了抑制这种“比最坏的情况更糟糕”的行为,在65nm工艺中提出并验证了可变容差D-FF,包括具有超大时钟驱动器的D-FF,在1.2V时可将性能变化率降低29%,在0.7V时可降低55%,功耗开销为14%。
This paper discusses vulnerability of a D-flipflop (D-FF) under within-die (WID) variation. The effect of WID variability on D-FF timing characteristics is examined and it is revealed that the setup time of a D-FF becomes larger than that of the worst corner condition. In order to suppress this “worse-than-the-worst-corner” behavior, variation-tolerant D-FFs are proposed and verified in a 65nm process, including a D-FF with over-sized clock drivers which reduces performance variability by 29% at 1.2V and 55% at 0.7V with power overhead of 14%.
变异建模及其对设计的影响
DOI: --
发表时间: 2008
期刊:
影响因子: --
作者:
W. Matsubara;S. Inenaga;A. Ishino;A. Shinohara;T. Nakamura;K. Hashimoto;Hidetoshi Onodera
通讯作者: Hidetoshi Onodera