Patent ID: 7193249
Filing Date: 2007-03-20
Classification: H01L

Abstract:
1. A nitride-based light emitting device including an active layer between an n-cladding layer and a p-cladding layer, the device comprising an ohmic contact layer formed on the p-cladding layer using oxide containing a p-type dopant, wherein the oxide is one of a first binary oxide comprising an element selected among elements in group 2A including Be, Mg, Ca, Sr, Ba, and Ra, a second binary oxide comprising an element selected from elements in group 2B including Zn, Cd, and Hg, a first ternary oxide comprising an element selected from the elements in group 2A and an element selected from the elements in group 2B, and a second ternary oxide comprising an element selected from elements in group 6B including S, Se, Te, and Po and one selected from the elements in group 2B, and wherein the p-type dopant comprises at least one element selected from a first dopant group consisting of Li, Na, K, Rb, Cs, Cu, Ag, Au, V, Nb, Ta, N, P, As, Sb, and Bi.