Patent ID: 7674680

Claim:
A method for manufacture of a device for regulating a flow of electrical current, the method comprising: providing for a semiconductor substrate having a first surface region having a first polarity type; forming an electrically insulating layer in contact with a surface of the first surface region of the semiconductor substrate, the insulating layer having a dielectric constant greater than 4.0; forming a gate electrode located in contact with at least a portion of the insulating layer; exposing the first surface region of the semiconductor substrate on one or more areas proximal to the gate electrode; forming a thin film of metal on at least a portion of the exposed first surface region of the semiconductor substrate; and reacting the metal with the first surface region of the semiconductor substrate such that a Schottky or Schottky-like source electrode and drain electrode are formed on the semiconductor substrate, wherein the formed source electrode and drain electrode are in contact with the first polarity type of the first surface region, and wherein an electrically controlled channel region is formed in the first surface region of the substrate on a side of the electrically insulating layer opposite the gate electrode under control of a voltage on the gate electrode, wherein the electrically controlled channel region has a second polarity type opposite the first polarity type of the first surface region, and wherein the electrically controlled channel region is formed under control of the voltage on the gate electrode adjacent to and touching at least one of the source electrode and the drain electrode.