Patent ID: 7476893

Claim:
A semiconductor device comprising: a drain electrode comprising an exterior surface and an interior surface; a gate electrode comprising an exterior surface and an interior surface; a source electrode comprising a first surface and a second surface that define the thickness of said source electrode; a semiconductor layer that is located between said drain electrode and said source electrode wherein said semiconductor layer is in electrical contact with said interior surface of said drain electrode and said first surface of said source electrode; and a dielectric layer that is located between said gate electrode and said source electrode wherein said dielectric layer is in electrical contact with said interior surface of said gate electrode and said second surface of said source electrode and wherein the thickness of said source electrode is sufficiently small to provide for control of electrical current between said source and drain electrode by controlling the electrical potential that is applied to said gate electrode, and wherein said drain electrode consists essentially of aluminum, said gate electrode consists essentially of copper, said first surface of said source electrode consists essentially of aluminum and said second surface of said source electrode consists essentially of copper.