Patent ID: 7374958

Claim:
A light emitting semiconductor bonding method for bonding a substrate onto a light emitting semiconductor, the substrate being a structure containing electric circuits, an ohmic contact N electrode layer and an ohmic contact P electrode layer being formed on an N-type contact layer and a P-type contact layer of the light emitting semiconductor respectively, and the method comprising the following steps: (a) depositing and forming a first metallic layer and a second metallic layer on the substrate with positions of the first metallic layer and the second metallic layer corresponding to those of the N electrode layer and the P electrode layer; and (b) flip-placing the light emitting semiconductor on the substrate so that the N electrode layer and the P electrode layer correspond to and are stacked on the first metallic layer and the second metallic layer, and then bonding the N electrode layer onto the first metallic layer and bonding the P electrode layer onto the second metallic layer by using ultra-sonic welding technology; wherein the areas of the first metallic layer and the second metallic layer correspond to those of the N electrode layer and the P electrode layer so as to form contact areas of approximately the same size.