| 摘要 |
A semiconductor light emitting element having a semiconductor light emitting structure on a first main surface of a substrate, wherein the first main surface of the substrate has a substrate protrusion portion thereon, wherein a bottom surface of a protrusion is wider than a top surface thereof in a cross section of the substrate and the top surface is included in the bottom surface in a top view of the substrate, the bottom surface has an approximately polygonal shape which has a convex portion on each constituent side of the bottom surface, and the top surface has an approximately circular shape.
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