Patent ID: 7687376

Claim:
A method of manufacturing a vertical GaN-based LED comprising: preparing an n-type GaN substrate; sequentially forming an active layer and a p-type nitride semiconductor layer on the n-type GaN substrate through an epitaxial growth method; forming a p-electrode on the p-type nitride semiconductor layer; forming a p-type bonding pad on the p-electrode and forming a substrate support layer on the resulting structure in which the p-type bonding pad is formed, before the wet-etching of the n-type GaN substrate; wet-etching the lower surface of the n-type GaN substrate so as to reduce the thickness of the n-type GaN substrate; forming a flat n-type bonding pad on the wet-etched lower surface of the n-type GaN substrate, the n-type bonding pad defining an n-electrode formation region; and forming an n-electrode on the n-type bonding pad; wherein the active layer and the p-type nitride semiconductor layer have a lattice constant close to the lattice constant of the n-type GaN substrate: and wherein forming the n-type bonding pad includes a plating method.