Patent ID: 8441030

Claim:
A power semiconductor device comprising: a first III-nitride heterojunction; a second III-nitride heterojunction arranged on said first III-nitride heterojunction; a protective layer disposed over said second III-nitride heterojunction; a plurality of schottky electrodes extending through said protective layer and electrically connected to said second III-nitride heterojunction; a plurality of ohmic electrodes extending through said protective layer and electrically connected to said second III-nitride heterojunction; a first field plate atop each of said plurality of schottky electrodes; a second field plate atop each of said plurality of ohmic electrodes; wherein said plurality of schottky electrodes and said plurality of ohmic electrodes are alternately arranged in an interdigitated layout, and wherein said first and second III-nitride heterojunctions are configured to form at least two, two-dimensional electron gas (2DEG) channels.