Patent ID: 8704268
Filing Date: 2014-04-22
Classification: H01L

Abstract:
1. A semiconductor light emitting device comprising: an n-type semiconductor layer containing a nitride semiconductor; a p-type semiconductor layer containing a nitride semiconductor; and a light emitting layer provided between the n-type semiconductor layer and the p-type semiconductor layer, the light emitting layer including a plurality of barrier layers and a plurality of well layers, being alternately stacked, a p-side barrier layer being closest to the p-type semiconductor layer among the plurality of barrier layers, the p-side barrier layer including a first and a second layer, the first layer containing group III elements, the second layer being stacked with the first layer, and the second layer containing group III elements, an In composition ratio in the group III elements of the second layer being higher than an In composition ratio in the group III elements of the first layer, or the first layer not containing In and the second layer containing In, and an average In composition ratio of the p-side barrier layer being higher than an average In composition ratio of an n-side barrier layer being closest to the n-type semiconductor layer among the plurality of barrier layers.