Patent ID: 8692280

Claim:
An optoelectronic semiconductor device comprising: a substrate; a semiconductor system formed on the substrate, the semiconductor system comprising: a first conductivity type layer; a second conductivity type layer; and an active layer formed between the first conductivity type layer and the second conductivity type layer; a recess structure formed to expose a portion of the first conductivity type layer being a bottom surface of the recess structure; and an electrode structure formed on the semiconductor system, wherein the electrode structure comprises: a first conductivity type bonding pad electrically connected to the first conductivity type layer; a second conductivity type bonding pad electrically connected to the second conductivity type layer; a first conductivity type extension electrode formed on the bottom surface and extending laterally in the recess structure; a second conductivity type extension electrode, wherein the first conductivity type extension electrode and the second conductivity type extension electrode form a three-dimensional crossover; and an insulating layer formed on the first conductivity type layer, the insulating layer covering the first conductivity type extension electrode in the recess structure and filling in the recess structure, wherein the first conductivity type extension electrode and the second conductivity type extension electrode are on opposite sides of the active layer.