Patent ID: 8314016
Filing Date: 2012-11-20
Classification: H01L

Abstract:
1. A method of fabricating a gallium nitride semiconductor lateral device structure, the method comprising: forming a continuous gallium nitride layer on a substrate; forming a periodic array of columns ( growing a second gallium nitride layer comprising periodic arrays of high and low defect density regions using lateral epitaxial growth techniques wherein on top of the second gallium nitride layer that comprises the low defect density regions over trenches there is a gate ( the method further comprising vertically aligning an active regions of a semiconductor lateral devices with the low defect density regions of the second gallium nitride layer, wherein said semiconductor lateral device extends between greater than two columns ( wherein said semiconductor device active regions are between an edge of a Source (S) and an edge of a Drain (D), and further wherein the Source (S) edge and Drain (D) are positioned so that the current flows only in low defect density regions; wherein the current flows only in areas of low defect density and Source (S), Gate (G), and Drain (D) are on one plane, on top of the device; and further wherein said gate (