Series resistance in a MOS capacitor with a thin gate oxide

Abstract The effect of series resistance ( R s ) on the MOS capacitor high-frequency C – V characteristics has been studied. A new approximate formula for the dependence of bulk series resistance on gate electrode diameter is proposed. The influence of gate dimensions and substrate impurity type on the value of R s is studied. Finally the contribution of back-contact impedance to the total value of the series resistance is discussed.