Patent ID: 8492185

Claim:
A method for fabricating a gallium and nitrogen containing substrate comprising: providing a gallium and arsenic containing substrate having a major surface region of a predetermined area; forming a plurality of recessed regions within a thickness of the substrate, each of the plurality of recessed regions having a first exposed surface of a first crystallographic orientation and a second exposed surface of a second crystallographic orientation; depositing masking material over at least the first exposed surface of each of the recessed regions; depositing nucleation material over the second exposed surface of each of the recessed regions; forming a thickness of gallium and nitrogen containing material overlying the nucleation material such that the thickness of gallium and nitrogen containing material fills each of the recessed regions to form a plurality of growth structures in each of the recessed regions; coalescing the plurality of growth structures to form a resulting thickness of a gallium and nitrogen containing material overlying the major surface region of the predetermined area; and releasing the resulting thickness of the gallium and nitrogen containing material from at least the major surface region.