Luminescent ceramic for a light emitting device

摘要

A semiconductor light emitting device comprises a light emitting layer disposed between an n-type region and a p-type region is combined with a ceramic layer which is disposed in a path of light emitted by the light emitting layer. The light emitting device is supported by a submount or a host substrate. A heat extraction structure thermally couples the first ceramic layer to the submount or host substrate, respectively.