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This paper presents an integrated framework, together with control policies, for optimizing dynamic control of self-tuning parameters of a digital system over its lifetime in the presence of circuit aging. A variety of self-tuning parameters such as supply voltage, operating clock frequency, and dynamic cooling are considered, and jointly optimized using efficient algorithms described in this paper...
We present a framework and control policies for optimizing dynamic control of various self-tuning parameters over lifetime in the presence of circuit aging. Our framework introduces dynamic cooling as one of the self-tuning parameters, in addition to supply voltage and clock frequency. Our optimized self-tuning satisfies performance constraints at all times and maximizes a lifetime computational power...
Circuit failure prediction is used to predict occurrences of circuit failures, during system operation, before errors appear in system data and states. This technique is applicable for overcoming major scaled-CMOS reliability challenges posed by aging mechanisms such as Negative-Bias-Temperature-Instability (NBTI). This is possible because of the gradual nature of degradation associated with such...
Accurate prediction of circuit aging and its variability is essential to reliable design and analysis. Such a capability further helps reduce the load in statistical reliability test. Based on compact models of transistor degradation and circuit performance, we develop analytical solutions that efficiently predict the statistics of both circuit timing and the leakage under temporal stress and process...
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