Amorphous Silicon Static Induction Transistor

Abstract
A hydrogenated amorphous silicon (a-Si:H) Schottky-gate static induction transistor (SIT) is proposed and its characteristics are calculated for the case that the gap-state distribution in a-Si:H is constant near the Fermi level. It is found that an a-Si:H SIT with a gate spacing of about 5 µm can yield a sufficiently high ON/OFF current ratio of more than 108 when the gap-state density near the Fermi level is 5×l015 cm-3eV-1. The cut-off frequency of an a-Si:H SIT is expected to exceed a few MHz.