Resonant tunneling in tunneling hot-electron transfer amplifier (THETA) structures

Abstract

We have investigated a series of Tunneling Hot-Electron Transfer Amplifiers (THETAs) fabricated from the InGaAlAs system with abrupt collector-base isolation barriers. The turn-on characteristics of these structures can be modified by resonant tunneling, via a confined state in the base, occurring just before the expected ballistic turn-on.