Patent ID: 8502258

Claim:
A semiconductor structure comprising: a package heatsink having a top surface; a first electrical connection having a top surface and a bottom surface, wherein the bottom surface of the first electrical connection contacts a first portion of the top surface of the package heatsink; a bottom contact having a top surface and a bottom surface, wherein the bottom surface of the bottom contact contacts the top surface of the first electrical connection; a silicon diode having a top surface and a bottom surface, wherein the bottom surface of the silicon diode contacts the top surface of the bottom contact; a top contact having a top surface and a bottom surface, wherein the bottom surface of the top contact contacts the top surface of the silicon diode; a reflective ohmic p type contact having a top surface and a bottom surface, wherein the bottom surface of the reflective ohmic p type contact contacts the top surface of the top contact; a multilayer epitaxial structure including, in series: a GaN p type layer adjacent to the top surface of the ohmic p type contact, a multi-quantum well (MQW), a GaN n type layer, and a buffer layer having a top surface; an electrically conductive silicon substrate layer having a top surface and a bottom surface, wherein the bottom surface of the silicon substrate layer contacts the top surface of the buffer layer; an ohmic n type contact having a top surface and a bottom surface; and an aperture penetrating the ohmic n-type contact, penetrating the electrically conductive silicon substrate layer, and reaching a portion of the top surface of the buffer layer.