Impact of dynamic variability on SRAM functionality and performance in nano-scaled CMOS technologies

Abstract

In this paper we demonstrate that fast oxide trapping mechanism can be responsible for significant dynamic variability of Vt, gm and Id at circuit operating conditions. An estimation of the effect of these variabilities has been made using Monte Carlo simulations. The impact of the measured variabilities on SRAM performance is found appreciable since a margin of ~50mV in the minimum supply voltages is required to overcome this effect.