Patent ID: 9444009
Filing Date: 2016-09-13
CPC Classification: H01L

Claim Text:
1. A group-III nitride compound semiconductor light emitting element comprising: a substrate that has a main face on which a concave and convex portion is formed; a group-III nitride compound semiconductor layer that is formed on the main face of the substrate; and a clearance that is formed between the substrate and the group-III nitride compound semiconductor layer at a first region of the semiconductor light emitting element, wherein, in the first region, a portion of the group-III nitride compound semiconductor layer and a portion of the clearance are disposed in a concave of the concave and convex portion on a section through two adjacent top portions of the concave and convex portion and a bottom portion located between the adjacent top portions, wherein, in the first region, the group-III nitride compound semiconductor layer includes a concave portion that is concave away from the substrate, wherein an apex of a convex of the concave and convex portion is centrally aligned with a vertex of the concave portion of the group-III nitride compound semiconductor layer, and wherein the apex of the convex of the concave and convex portion of the substrate is shifted in a direction perpendicular to a stacking direction of the substrate and the semiconductor layer from a positon where the apex of the convex of the concave and convex portion is aligned with an apex of the group-III nitride compound semiconductor layer in the stacking direction.