Patent ID: 9287448
Filing Date: 2016-03-15
CPC Classification: H01L

Claim Text:
1. A semiconductor light emitting element, comprising: a light emitting layer capable of emitting light; and a current spreading layer of a first conductivity type having a first surface and a second surface, wherein, the light emitting layer is provided on the first surface, the second surface including a light extraction region and a flat contact region, the light extraction region having a plurality of convex structures with triangle cross-sectional shape, a bottom portion of each of the plurality of convex structures with triangle cross-sectional shape is parallel to a crystal growth plane, wherein the plurality of convex structures with triangle cross-sectional shape is below the flat contact region at the second surface of the current spreading layer, one of base angles of each of the plurality of convex structures with triangle cross-sectional shape is more than 90 degrees, the other of the base angles of each of the plurality of convex structures with triangle cross-sectional shape is between 35 degrees and 45 degrees, and the current spreading layer includes one of In