Patent ID: 7691659

Claim:
Method for producing a radiation-emitting semiconductor component whose semiconductor body includes a stack of different III-V nitride semiconductor layers configured to emit radiation, wherein the semiconductor body has a first principal surface and a second principal surface, with at least a portion of the radiation being emitted through the first principal surface, the method comprising: producing a reflecting contact layer for electrically contacting said semiconductor body on the second principal surface of the semiconductor body on the semiconductor layer stack, wherein producing the contact layer comprises applying a first layer to the semiconductor layer stack and applying a second layer to the first layer, wherein the first layer is transparent to the radiation emitted by the stack of different III-V nitride semiconductor layers and the second layer reflects the radiation emitted by the stack of different III-V nitride semiconductor layers, wherein the different III-V nitride semiconductor layers are epitaxially grown on a substrate, wherein the transparent first layer is not epitaxially grown on the substrate, wherein the substrate is a composite substrate that has a substrate body and an interlayer, with a coefficient of thermal expansion of the substrate body being similar to or greater than a coefficient of thermal expansion of the III-V nitride layers, with the III-V nitride layers being deposited on the interlayer, and wherein the substrate is removed.