Abstract
Negative-bias temperature instability (NBTI) and positive-bias temperature instability (PBTI) weaken PFETs and high-k metal-gate NFETs, respectively. This paper provides comprehensive analyses on the impacts of NBTI and PBTI on wide fan-in domino gates with high-k metal-gate devices. The delay degradation and power dissipation of domino logic, as well as the Unity Noise Gain (UNG) are analyzed in the presence of NBTI/PBTI degradation. It has been shown that the main concern is the degradation impact on delay which can increase up to 16.2% in a lifetime of 3years. We have also proposed a degradation tolerant technique to compensate for the NBTI/PBTI-induced delay degradation in domino gates with a negligible impact on UNG and power.
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