Patent ID: 7763938
Filing Date: 2010-07-27
Classification: H01L

Abstract:
1. An insulated gate transistor for conduction using charge carriers of a predetermined conductivity type, comprising: a semiconductor body layer; a source electrode laterally extending across a source region along one major side of the semiconductor body layer defining a Schottky potential barrier between the source electrode and the source region of the semiconductor body layer, a drain electrode connected to the semiconductor body layer, the drain electrode laterally spaced from the source electrode along the one major side of the semiconductor body; and a gate electrode for controlling transport of carriers of the predetermined carrier type from the source electrode to the source region of the semiconductor body layer across the barrier when the source region is depleted; wherein the gate electrode and the source electrode are arranged in a wholly opposed laterally overlapping relationship to each other; wherein the gate electrode is located on an opposite side of the semiconductor body layer to the source electrode having a gate insulator layer between the gate electrode and the semiconductor body layer; and wherein the gate electrode is spaced from the source electrode by at least the combined full thickness of the semiconductor body layer and the gate insulator over the whole of the gate-controlled region of the Schottky barrier.