Patent ID: 6518599
Filing Date: 2003-02-11
Classification: H01L

Abstract:
A light emitting device using a group III nitride group compound semiconductor comprising:a substrate; at least one layer of a group III nitride group compound semiconductor formed on said substrate, wherein said at least one group III nitride group compound semiconductor layer includes at least one region with many defects and at least one region with less defects; and at least one stack of layers which is formed on said at least one group III nitride group compound semiconductor layer, wherein each of said at least one stack traverses at least a portion of said at least one region with many defects and said at least one region with less defects in a longitudinal direction, wherein each of said at least one stack of layers includes a pair of stack facets, wherein said pair of stack facets is formed in one of said at least one region having less defects and is parallel to a boundary between said at least one region of more defects and said at least one region of less defects said pair of stack facets being a laser cavity facet from which a laser light is outputted.