Patent ID: 8212287
Filing Date: 2012-07-03
Classification: H01L

Abstract:
1. A semiconductor structure, comprising: a wurtzitic nitride substrate having a growth surface defining a growth plane, said growth plane corresponding to a crystallographic plane forming an angle α other than 0 or 90 degrees to the primary crystallographic plane of the substrate; a nitride-based growth medium disposed over said substrate; and structural sidewalls 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, said window openings further having 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.