Impact of random telegraph noise profiles on drain-current fluctuation during dynamic gate bias

Abstract

The influence of random telegraph noise (RTN) in MOSFETs on drain current (Id) during the rise/fall edges of the pulsed gate voltage (V g) cycle was investigated. We have revealed for the first time that the existence of RTN increases Id fluctuations under dynamic V g by making a comparison between FETs with and without RTN. The initial trap occupation states before varying Vg, which are governed by the RTN profiles, significantly affect the Id values during the rise/fall edges of Vg. The revealed effects of RTN with different profiles on Id under dynamic Vg will be useful for designing ultrahigh speed circuits. © 1980-2012 IEEE.