Patent ID: 7834376

Claim:
A power semiconductor device comprising: a SiC semiconductor body of one conductivity formed over a SiC substrate of said one conductivity, said SIC semiconductor body including an active region having a plurality of spaced trenches each adjacent a mesa and each trench including a region of another conductivity formed into its sidewalls and bottom thereof, each region of said another conductivity being deep enough so that each mesa includes a first portion of said one conductivity between two opposing regions of said another conductivity; a contact region of said one conductivity having a lower electrical resistivity than said SiC semiconductor body formed atop each mesa; a conductive gate electrode formed adjacent to and in contact with said sidewalls and said bottom of each trench; an insulation cap formed over said conductive gate electrode, said insulation cap covers a portion of said contact region; a first power contact in contact with said contact region; and a second power contact in ohmic contact with said SiC substrate, said second power contact comprises solderable aluminum, wherein said power semiconductor device is a junction field effect transistor.