Patent ID: 9224916
Filing Date: 2015-12-29
Classification: H01L

Abstract:
1. A semiconductor light emitting device comprising: a first semiconductor layer capable of emitting light; a second semiconductor layer provided on the first semiconductor layer, the second semiconductor layer having a first major surface and a second major surface opposite to the first major surface, the second major surface including a plurality of protrusions provided with a first side wall, wherein the first side wall intersects with a crystal growth plane parallel to the first major surface, and a first internal angle inside the protrusions between the first side wall and the crystal growth plane is more than 90 degrees; a dielectric film provided at least at a tip portion of the protrusions; and a third semiconductor layer in contact with the first semiconductor layer, opposite to the second semiconductor layer across the first semiconductor layer and having different conductivity type from the second semiconductor layer, wherein each of the first semiconductor layer, the second semiconductor layer, and the third semiconductor layer includes one of compounds with compositions represented by