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Hold-time violation analysis and fixing in near-threshold region

机译:保持时间违规分析和近阈值区域修复

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Operating in the Near Threshold Voltage (NTV) region improves the energy-efficiency of CMOS circuits by an order of magnitude. However, the number of hold-time violations significantly grows by scaling the supply voltage to the NTV region due to the increased delay variations. Furthermore, the conventional hold-time fixing approaches based on corner analysis are not applicable to the NTV region. In this paper, we propose a new iterative hold-time fixing flow for the NTV region based on Statistical Static Timing Analysis. The experimental results show 43.3% (35.4%) less energy (area) overhead compared to the conventional approach.
机译:在近阈值电压(NTV)区域工作可将CMOS电路的能量效率提高一个数量级。但是,由于延迟变化增加,通过将电源电压缩放到NTV区域,违反保持时间的次数显着增加。此外,基于角点分析的常规保持时间固定方法不适用于NTV区域。在本文中,我们基于统计静态时序分析为NTV区域提出了一种新的迭代保持时间固定流。实验结果表明,与传统方法相比,能源(区域)开销减少了43.3%(35.4%)。

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