Patent ID: 6888166
Filing Date: 2005-05-03
Classification: H01L

Abstract:
1. A semiconductor light emitting device comprising: a substrate; a ball-up preventive layer formed on said substrate; a bonding layer made of eutectic material and formed on said ball-up preventive layer; a metal layer formed on said bonding layer; a barrier layer formed on said metal layer; a first electrode formed on or in parallel with said barrier layer; a semiconductor light emitting structure formed on a surface including an upper surface of said first electrode; and a second electrode formed on a partial surface of said semiconductor light emitting structure, wherein: eutectic material of said bonding layer forms eutectic with said metal layer to bond together said bonding layer and said metal layer; said ball-up preventive layer prevents ball-up of said bonding layer; and said barrier layer prevents a composition of a material of said first electrode from diffusing into said barrier layer and prevents the eutectic material of said bonding layer from intruding into said first electrode.