Low Cost NBTI Degradation Detection and Masking Approaches Abstract—Performance degradation of integrated circuits due to aging effects, such as Negative Bias Temperature Instability (NBTI), is becoming a great concern for current and future CMOS technology. In this paper, we propose two monitoring and masking approaches that detect late transitions due to NBTI degradation in the combinational part of critical data paths and guarantee the correctness of the provided output data by adapting the clock frequency. in Public bookmarkswith approachescloudcomputercomputingcostdegradationdetectionieeelowmaskingnbtisociety