Patent ID: 9012888
Filing Date: 2015-04-21
Classification: H01L

Abstract:
1. A semiconductor light emitting device comprising: a first layer of n-type including a nitride semiconductor; a second layer of p-type including a nitride semiconductor; a light emitting unit provided between the first layer and the second layer and including a plurality of barrier layers and a well layer provided between the barrier layers; a first stacked structure provided between the first layer and the light emitting unit, the first stacked structure including: wherein a Si concentration in a first barrier layer of the barrier layers nearest to the first stacked structure is higher than a Si concentration in the first stacked structure, a Si concentration in the second stacked structure is lower than the Si concentration in the first stacked structure, a Si concentration in the first layer is lower than the Si concentration in the second stacked structure, a Si concentration in other barrier layers except the first barrier layer is lower than the Si concentration in the first barrier layer, and the Si concentration in the first barrier layer is 1.2×10