Patent ID: 8692277

Claim:
A light emitting diode comprising: a diode region comprising a gallium nitride-based n-type layer, an active region and a gallium nitride-based p-type layer; a substrate on the gallium nitride-based n-type layer and optically matched to the diode region, the substrate having a first face remote from the gallium nitride-based n-type layer, a second face adjacent the gallium nitride-based n-type layer and a sidewall therebetween, at least a portion of the sidewall being beveled so as to extend oblique to the first and second faces; a reflector on the gallium nitride-based p-type layer remote from the substrate; a first bonding layer on the reflector remote from the substrate; an ohmic contact on the gallium nitride-based n-type layer remote from the substrate; and a second bonding layer on the ohmic contact remote from the substrate, wherein the first face further comprises two intersecting grooves therein that form an X-shape in plan view.