Patent ID: 9269877
Filing Date: 2016-02-23
CPC Classification: H01L

Claim Text:
1. A light-emitting apparatus comprising: a support substrate; a light-emitting structure on the support substrate comprising a first conductive layer of a first conductivity type, a light-emitting layer, and a second conductive layer of a second conductivity type which are stacked sequentially; an insulating layer formed along a profile of the light-emitting structure and patterned to expose a portion of the first conductive layer and a portion of the second conductive layer; a first electrode electrically connected through the exposed portion to the first conductive layer; a second electrode electrically connected through the other exposed portion to the second conductive layer, wherein the first electrode includes at least one of ITO, Cu, Ni, chrome (Cr), Au, titanium (Ti), Pt, Al, vanadium (V), W, molybdenum (Mo), and Ag, wherein the second electrode includes at least one of ITO, Cu, Ni, chrome (Cr), Au, titanium (Ti), Pt, Al, vanadium (V), W, molybdenum (Mo), and Ag, wherein the first electrode and the second electrode are respectively connected to a first conductive region and a second conductive region of the support substrate by a first conductive solder and a second conductive solder, and wherein a first bias is applied to the first conductive layers via the first conductive region, the first conductive solder and the first electrode and a second bias is applied to the second conductive layer via the second conductive region, the second conductive solder and the second electrode; a substrate located on the first conductive layer, the substrate having a first surface and a second surface, wherein the first surface of the substrate faces the light-emitting structure; a roughness formed on the second surface of the substrate; and a phosphor layer formed on the substrate, wherein the substrate is monocrystalline and includes a polycrystalline region, and wherein the roughness is formed on the polycrystalline region.