%P 39.1-39.6 %I UK Simulation Society %V 19 %A R. Kannan %A H. Khalid %A V. Indragandhi %A S. Albert Alexander %T Threshold voltage and drain current investigation of power MOSFET ZVN3320FTA by 2D simulations %R 10.5013/IJSSST.a.19.06.39 %N 6 %D 2018 %L scholars9511 %J International Journal of Simulation: Systems, Science and Technology %O cited By 1 %X Power electronic devices used in space shuttles experience degradation due to their sensitivity towards surrounding radiations. Generally, Metal-Oxide Semiconductor Field Effect Transistors (MOSFET) are used in these devices because of their fast switching speed and low power consumption capabilities. Ionizing radiation causes induced charge to build-up which damages the electrical characteristics of the MOSFET. This study investigates the threshold voltage shifts and drain current degradation for N-channel power MOSFET ZVN3320FTA by simulating experimental data on COMSOL Multiphysics. Total Ionization Dose (TID) degrade the oxide layer of MOSFETs by inducing interface-trap and oxide-trap charges. Generation of these excessive electron-hole pairs eventually causes threshold voltage shifts and current degradation. © 2018, UK Simulation Society. All rights reserved.