Patent ID: 8049235
Filing Date: 2011-11-01
Classification: H01L

Abstract:
1. A nitride semiconductor light emitting element, comprising: a p side electrode; a p type nitride semiconductor layer disposed on the p side electrode; a light emitting region disposed on the p type nitride semiconductor layer; an n type nitride semiconductor layer disposed on the light emitting region; and an n side electrode disposed on the n type nitride semiconductor layer, wherein the n type nitride semiconductor layer is disposed on a light extraction side of the light emitting region and the p type nitride semiconductor layer is disposed on a side opposite to the light extraction side of the light emitting region, the n type nitride semiconductor layer is formed to be an anti-reflection layer which is formed of a first multilayer film comprised of alternating n-InGaN semiconductor layers and n-GaN semiconductor layers, the layer of the first multilayer film closest to the light emitting region being an n-InGaN semiconductor layer and the layer of the first multilayer film furthest from the light emitting region being an n-GaN semiconductor layer, and the p type nitride semiconductor layer is formed to be a Bragg reflection layer which is formed of a second multilayer film comprised of alternating p-AlGaN semiconductor layers and p-GaN semiconductor layers, the layer of the second multilayer film closest to the light emitting region being a p-AlGaN semiconductor layer and the layer of the second multilayer film furthest to the light emitting region being a p-GaN semiconductor layer.