Patent ID: 8080879
Filing Date: 2011-12-20
Classification: H01L

Abstract:
1. An electrode structure for an LED, the electrode structure comprising: a semiconductor material having a cutout formed therein; an electrically insulating porous dielectric material; a metal electrode; at least one pair of dielectric layers configured so as to define a DBR structure and disposed between a portion of the metal electrode and a portion of the dielectric material, wherein each pair of dielectric layers of the DBR structure is substantially optically transmissive, is comprised of layers of materials of different indices of refraction, and is a multiple of approximately ¼ λ thick; and wherein a portion of the electrode is formed outside of the cutout and a portion of the electrode is formed inside of the cutout, wherein the portion of the electrode outside the cutout is electrically isolated from the semiconductor material by the dielectric material, and wherein the portion of the electrode inside the cutout is in electrical contact with the semiconductor material.