Patent ID: 9112111
Filing Date: 2015-08-18
Classification: H01L,H01S

Abstract:
1. A semiconductor light emitting device, comprising: an n-type semiconductor layer including a nitride semiconductor; a p-type semiconductor layer including a first p-side layer, a second p-side layer of Al a light emitting layer provided between the n-type semiconductor layer and the second p-side layer, the light emitting layer including a nitride semiconductor, a plurality of barrier layers, and a well layer provided between the plurality of barrier layers, the plurality of barrier layers including In a concentration profile of Mg of a p-side region including the light emitting layer, the second p-side layer, and the third p-side layer including: an Al concentration in the p-side region having a maximum value at a first position, the Al concentration being 1/100 of the maximum value at a second position arranged with the first position along the first direction in a region between the first position and a position corresponding to the first portion, a Mg concentration at the second position being not less than 2×10 an In concentration in the p-side region has a maximum value at a third position, the In concentration is 1/10 of the maximum value at a fourth position arranged with the third position along the first direction in a region between the third position and a position corresponding to the second portion, and a Mg concentration at the fourth position is not less than 3×10