Patent ID: 6399966
Filing Date: 2002-06-04
Classification: B82Y,G11B,H01L,H01S

Abstract:
A light emitting nitride semiconductor device, comprising:a substrate made of nitride semiconductor crystal or a substrate having a nitride semiconductor crystal film grown on a crystalline material other than said nitride semiconductor crystal; an n-type layer and a p-type layer made of nitride semiconductor and formed on said substrate; and a light emitting layer provided between said n- and p-type layers, wherein said light emitting layer is formed of a well layer or a combination of well and barrier layers; of said layer or layers forming said light emitting layer, at least said well layer is made of a nitride semiconductor containing elements X, N and Ga, said element X being at least one selected from the group consisting of As, P and Sb; in said nitride semiconductor forming said light emitting layer, the ratio of the number of the atoms of said element X to the sum of said number of the atoms of said element X and the number of the atoms of said N, is not more than 30 atomic percent; and of said layer or layers forming said light emitting layer, at least said well layer contains as an impurity at least one element selected from the group consisting of Mg, Be, Zn, Cd, C, Si, Ge, Sn, O, S, Se and Te.