Patent ID: 9018657
Filing Date: 2015-04-28
Classification: H01L

Abstract:
1. A semiconductor light emitting element comprising: a group III nitride semiconductor layer including a light emitting layer that emits light by conduction, a n-type semiconductor layer, and a p-type semiconductor layer; a transparent substrate that has optical permeability to the light emitted from the light emitting layer, on which the group III nitride semiconductor layer is laminated; a first electrode that is formed on the p-type semiconductor layer; a second electrode that is formed on a semiconductor layer exposure surface of the n-type semiconductor layer, which is exposed by cutting out a part of the laminated p-type semiconductor layer, light emitting layer and n-type semiconductor layer; wherein the first electrode includes: a first conductive layer that is composed of a metal oxide having optical permeability to the light emitted from the light emitting layer and conductivity, the first conductive layer being laminated on the p-type semiconductor layer of the group III nitride semiconductor layer; a reflection layer that is composed of any one of silver and an alloy containing silver and is laminated on the first conductive layer; a second conductive layer that is provided so as not to contact the group III nitride semiconductor layer, composed of a metal oxide having conductivity and is laminated on the reflection layer to be used for electrical connection with the outside; and a coating layer that is composed of a metal having conductivity, and is provided to cover the first conductive layer, the reflection layer and the second conductive layer, which are laminated, with respect to the group III nitride semiconductor layer, wherein the first conductive layer, the reflection layer, the second conductive layer and the coating layer are provided in this order.