A Unified Flicker Noise Model for FDSOI MOSFETs Including Back-bias Effect

Abstract

A physics-based unified flicker noise model for FDSOI transistor is proposed. Flicker noise power spectral density (PSD) at the front and back interfaces are calculated using oxide-trap-induced carrier number (CNF) and correlated surface mobility fluctuation (CMF) mechanisms. The model predicts correct flicker noise behavior from weak inversion region to strong inversion region for a wide range of the front and backgate voltages. The proposed model is computationally efficient and implementable in any SPICE model for circuit simulations.