Effects of sidewall MOS channel on performance of AlGaN/GaN FinFET
Subthreshold slope of wide fin is lower than 60mV/dec. Subthreshold slope of narrow fin is higher than 200mV/dec. Wide fin exhibit severe hysteresis of threshold voltage. Narrow fin exhibit negligible hysteresis of threshold voltage. Trapping effect from sidewall is correlated to the fin width.
algan/gan finfet fin width 2deg tmah solution trapping/detrapping