Patent ID: 8207552
Filing Date: 2012-06-26
Classification: H01L

Abstract:
1. A vertical topology light emitting device, comprising: a conductive support structure; an adhesion structure comprising a first metallic layer on the conductive support structure and a second metallic layer on the first metallic layer; a semiconductor structure over the adhesion structure, the semiconductor structure having a first surface, a second surface and a side surface, wherein the semiconductor structure comprises a first-type semiconductor layer, a light emitting layer on the first-type semiconductor layer, and a second-type semiconductor layer on the light emitting layer; a reflective structure between the adhesion structure and the first surface of the semiconductor structure, the reflective structure also serving as a first electrode, wherein the reflective structure reflects the light from the semiconductor structure, and wherein the reflective structure comprises a reflective layer on the adhesion structure and a metal contact on the reflective layer; a second electrode on the second surface of the semiconductor structure, the second surface being opposite the first surface, wherein the second electrode comprises a first layer and a second layer on the first layer; a passivation layer on at least a portion of the second surface of the semiconductor structure; and a wavelength converting layer over the second surface of the semiconductor structure, wherein the passivation layer is at least partially disposed between the semiconductor structure and the wavelength converting layer.