Patent ID: 8791469

Claim:
A semiconductor light emitting element having a substrate and a semiconductor layer, which includes a light emitting layer that emits light by current flow and is laminated on the substrate, wherein: the substrate includes a substrate top surface on which the semiconductor layer is laminated, a substrate bottom surface provided on an opposite side of the substrate top surface, and a substrate side surface formed to enclose the peripheral edge of the substrate top surface and the substrate bottom surface, and is provided with a plurality of cutouts, which are formed by cutting out a part of the substrate and are arranged at intervals along a border between the substrate top surface and the substrate side surface; the semiconductor layer includes a semiconductor bottom surface provided in contact with the substrate top surface, a semiconductor top surface provided on an opposite side of the semiconductor bottom surface, and a semiconductor side surface provided to enclose the peripheral edge of the semiconductor bottom surface and the semiconductor top surface; and on the semiconductor side surface, projections and depressions are formed by arranging a plurality of depression portions, each of which extends from a semiconductor bottom surface side toward a semiconductor top surface side, and depresses toward an inside of the semiconductor layer, wherein the area of the bottom surface of the semiconductor layer is less than the area of the top surface of the semiconductor layer.