Patent ID: 9196796
Filing Date: 2015-11-24
Classification: H01L

Abstract:
1. A semiconductor light emitting diode, comprising: a light emitting structure comprising an upper surface comprising an N-face; and an ohmic electrode structure arranged on the light emitting structure, the ohmic electrode structure comprising: wherein: the lower diffusion preventing layer comprises at least one of Mo and W; the contact layer comprises at least one of Ti, TiN, a Ti—Ni alloy, Ta, and a W—Ti alloy; the upper diffusion preventing layer comprises a metal layer comprising at least one of W, Cr, Ru, Pt, Ni, Pd, Ir, Rh, and Nb, or an oxide film comprising at least one of RuOx, NiOx, IrOx, RhOx, NbOx, TiOx, TaOx, CrOx, and WOx; and the protective layer comprises Al.