Patent ID: 8652918

Claim:
A method of forming a semiconductor structure over a substrate such that reduced crystallographic defects are obtained, comprising: orienting said substrate to have a growth surface defining a growth plane, said substrate oriented such that its primary crystallographic plane is oriented at an angle α which is out of normal to said growth plane; forming structural sidewalls over at least a portion of said growth surface and extending substantially normal to said growth plane and defining a plurality of window openings, said window openings having a width, w, and a height, h; forming a structure of nitride-based growth medium over said substrate such that said window openings have formed therein a portion of said nitride-based growth medium such that crystallographic defects which originate at a portion of said growth surface and have an angular orientation substantially parallel to the orientation of said crystallographic plane of said substrate substantially terminate at said sidewalls and thereby substantially do not extend beyond the height of said window openings.