Simulations of Schottky barrier diodes and tunnel transistors

We present the implementation and simulated results of a practical model to cover Schottky and Ohmic contacts. The model considers thermionic emission and spatially distributed tunneling. Simulations using the present model reproduce characteristics of Schottky barrier diodes and show the transition from Schottky to ohmic as the doping level is increased. As an application example, the immunity of a Schottky barrier tunnel transistor to the short channel effect is demonstrated.