1/f noise model based on trap-assisted tunneling for ultra-thin oxides MOSFETs
preprintposted on 2020-07-03, 11:45 authored by Ruben AsanovskiRuben Asanovski, Luca SelmiLuca Selmi, Pierpaolo Palestri, Enrico Caruso
We derive an analytical model for 1/f noise in MOSFETs, highlighting a term that is often neglected in literature but becomes important for ultra-thin oxides. Furthermore, we identify an interesting relationship between the thermal noise of the gate impedance and the gate noise due to trapping/detrapping between the free carriers in the channel and the oxide traps, as well as the 1/f noise cross-correlation between drain and gate, showing that a single voltage noise generator is not enough to describe completely the 1/f noise. TCAD simulations are used to verify the model predictive capabilities.