Patent ID: 7129528
Filing Date: 2006-10-31
Classification: H01L

Abstract:
1. A semiconductor chip which emits electromagnetic radiation, comprising: an epitaxially produced semiconductor layer stack based on a nitride semiconductor material, which includes an n-conducting semiconductor layers, a p-conducting semiconductor layer and an electromagnetic radiation generating region which is arranged between said n-conducting and p-conducting semiconductor layers; a base, on which the semiconductor layer stack is arranged; and a mirror layer, which is arranged between the semiconductor layer stack and the base and reflects electromagnetic radiation emitted by the semiconductor layer stack in a direction of the base, wherein the mirror layer has a plurality of planar reflection sub-surfaces, which are positioned obliquely with respect to a main plane of the electromagnetic radiation-generating region and each form an angle of between 10° and 50° with respect to the main plane, and wherein the p-conducting semiconductor layer faces the base, and the mirror layer is comprised of a reflection surface of the p-conducting semiconductor layer, which includes the plurality of planar sub-surfaces which are positioned obliquely with respect to the main plane of the electromagnetic radiation-generating region and each form the angle of between 10° and 50° with respect to the main plane.