Patent ID: 8120051
Filing Date: 2012-02-21
Classification: H01L

Abstract:
1. A semiconductor light emitting element, comprising: a group III-V compound semiconductor layer comprising a light emitting layer, a first main surface comprising a light extraction surface formed thereon, and a second main surface; a reflection metal film formed on the second main surface for reflecting a light emitted from the light emitting layer toward the light extraction surface; a support substrate joined to the group III-V compound semiconductor layer via the reflection metal film; a front surface electrode formed on the first main surface; an ohmic contact joint part formed between the reflection metal film and the group III-V compound semiconductor layer except a region directly under the front surface electrode; and a front surface side contact part and a transparent dielectric reflection part formed between the group III-V compound semiconductor layer and the front surface electrode, wherein the semiconductor light emitting element further comprises a quadrangular shape of not more than 320 μm on a side, wherein the front surface electrode comprises a polygonal shape or a circular shape and an outer peripheral length of not less than 235 μm and not more than 700 μm, and wherein the ohmic contact joint part is disposed in a side of an outer peripheral part of the semiconductor light emitting element, formed so as to surround the front surface electrode when the ohmic contact joint part is viewed from a side of the front surface electrode, and disposed so that distance from each location of outer edge parts of the front surface electrode to the ohmic contact joint part nearest to the each location becomes equal to each other.