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arXiv · 1510.01370

Implications of Burn-In Stress on NBTI Degradation

Mohd Azman Abdul Latif·Noohul Basheer Zain Ali·Fawnizu Azmadi Hussin·Mark Zwolinski
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Abstract

Burn-in is accepted as a way to evaluate ageing effects in an accelerated manner. It has been suggested that burn-in stress may have a significant effect on the Negative Bias Temperature Instability (NBTI) of subthreshold CMOS circuits. This paper analyses the effect of burn-in on NBTI in the context of a Digital to Analogue Converter (DAC) circuit. Analogue circuits require matched device pairs; NBTI may cause mismatches and hence circuit failure. The NBTI degradation observed in the simulation analysis indicates that under severe stress conditions, a significant voltage threshold mismatch in the DAC beyond the design specification of 2 mV limit can result. Experimental results confirm the sensitivity of the DAC circuit design to NBTI resulting from burn-in.

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Mohd Azman Abdul Latif, Noohul Basheer Zain Ali, Fawnizu Azmadi Hussin, Mark Zwolinski. 2015-10-05. Implications of Burn-In Stress on NBTI Degradation. https://doi.org/10.13140/rg.2.1.5057.0965

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