Patent ID: 8633469
Filing Date: 2014-01-21
Classification: H01L

Abstract:
1. A Group III nitride semiconductor light-emitting device having a light-emitting layer and a p cladding layer on the light-emitting layer, the device comprising: a high impurity concentration layer formed in an opposite side to the p-cladding layer side of the light-emitting layer and doped with an n-type impurity; a low impurity concentration layer formed in contact with the light-emitting layer between the high impurity concentration layer and the light-emitting layer, the low impurity concentration layer having an n-type impurity concentration lower than an n-type impurity concentration of the high impurity concentration layer; and wherein the low impurity concentration layer has an n-type impurity concentration of 1/1000 to 1/100 of the p-type impurity concentration of the p cladding layer, and a thickness of 10 Å to 400 Å.