Patent ID: 8039855
Filing Date: 2011-10-18
Classification: H01L

Abstract:
1. A radiation-emitting semiconductor component, comprising: a substrate; a semiconductor layer structure which includes an active semiconductor layer which, in operation, emits radiation with a spectral distribution; electrical contacts for applying a current to the layer structure; and a coating layer which at least partially surrounds the active semiconductor layer and comprises a stack of electrically insulating layers to form an interference edge cut-off filter, the coating layer being operable to substantially hold back a short-wave component and to virtually unimpairedly transmit a longer-wave component of the radiation emitted by the active semiconductor layer, wherein a majority of the emitted radiation is emitted through a top face of the semiconductor layer structure remote from the substrate, wherein the longer-wave component transmitted by the coating layer comprises a dominant wavelength of the radiation emitted by the active semiconductor layer, and wherein the coating layer is in direct contact with the top face of the semiconductor layer structure, and wherein the coating layer completely covers the top face of the semiconductor layer structure and side faces of the semiconductor layer structure apart from a region of the top face that is provided with an electrical contact of said electrical contacts and in which the semiconductor component is encapsulated by a material which is transparent to the longer-wave component of the emitted radiation, and the coating layer is arranged between the active layer of the semiconductor component and the transparent encapsulation material.