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This paper focuses on Negative Bias Temperature Instability (NBTI) awareness to the circuit designer for reliable design of the System-On-a-Chip (SoC) analog circuit. The reliability performance of all matched pair such as current source and differential pair circuits, such as Bandgap Reference, is at the mercy of aging differential. Aging simulation (AgingSim) is mandatory to obtain realistic risk...
As dimensions of MOS devices have been scaled down, new reliability problems are coming into effect. One of these emerging reliability issues is aging effects which result in device performance degradation over time. NBTI (Negative biased temperature instability) is a well known aging phenomenon which is a limiting factor for future scaling of devices. NBTI results in the generation of trapped charges...
Accurate performance-degradation monitoring of nanometer MOSFET digital circuits is one of the most critical issues in adaptive design techniques for overcoming the performance degradation due to aging phenomena such as negative bias temperature instability (NBTI) and hot carrier injection (HCI). Therefore, this paper proposes new on-chip aging sensor circuits which deploy a threshold voltage detector...
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...
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