Patent ID: 9257283
Filing Date: 2016-02-09
CPC Classification: H01L

Claim Text:
1. A metal-oxide field-effect transistor (MOSFET) device, comprising: a gate electrode; a substrate comprising silicon carbide and having a surface that supports the gate electrode and defines a surface normal direction, wherein the substrate includes: an inter-layer dielectric disposed about the gate electrode and on a portion of the surface of the substrate; a contact layer disposed on a portion of the surface of the substrate covering a portion of the source contact region; and a source electrode disposed over the inter-layer dielectric and in electrical contact with the source contact region, wherein the source electrode comprises indium, and/or gold and is comprised of a combination of metal layers, wherein the source electrode further comprises an aluminum layer and a layer of indium and/or gold, and the layer of aluminum is physically separated from the inter-layer dielectric by the layer of indium and/or gold.