Patent ID: 8558242
Filing Date: 2013-10-15
Classification: H01L

Abstract:
1. A semiconductor structure comprising: a III-nitride substrate having a top surface and an opposing bottom surface; a first III-nitride layer of a first conductivity type coupled to the top surface of the III-nitride substrate; a second III-nitride layer of a second conductivity type coupled to the first III-nitride layer along a vertical direction; a third III-nitride layer of a third conductivity type coupled to the second III-nitride layer along the vertical direction; a first trench extending through a portion of the third III-nitride layer to the first III-nitride layer; a second trench extending through another portion of the third III-nitride layer to the second III-nitride layer; a first metal layer coupled to the second and the third III-nitride layers; and a second metal layer coupled to the bottom surface of the III-nitride substrate.