Novel Extraction method for source and drain series resistances in silicon nanowire metal-oxide-semiconductor field-effect-transistors based on radio-frequency analysis

In this work, we present a novel analytical method based on radio-frequency (RF) analysis for the accurate and reliable extraction of source and drain (S/D) series resistances in silicon nanowire (SNW) metal-oxide-semiconductor field-effect transistors (MOSFETs). The proposed method provides decomposed RF model equations for the gate-bias-independent off-state and gate-bias-dependent on-state components from both Y-and Z-parameters. The validity of our extraction method for S/D series resistances in SNW MOSFETs has been carefully tested in comparison with that of a previously reported method as well as with the physical three-dimensional (3D) device simulation. The schematically modeled Y-and Z-parameters have demonstrated excellent agreement with the numerical 3D device simulation results for various SNW MOSFET structures up to the 100 GHz frequency regime.