Patent ID: 6946372
Filing Date: 2005-09-20
Classification: H01L

Abstract:
1. A method of manufacturing a gallium nitride (GaN)-based semiconductor light emitting device, said method comprising the steps of: a) sequentially forming an n-type GaN-based semiconductor layer, an active layer and a p-type GaN-based semiconductor layer on a substrate; b) forming a contact resistance improving layer on the p-type GaN-based semiconductor layer from at least one metal selected from the group consisting of Au, Mn, Mo, Pd, Pt, Sn, and Ti; c) heat-treating the p-type GaN-based semiconductor layer and the contact resistance improving layer, so that atoms of said at least one metal in the contact resistance improving layer diffuse into the p-type GaN-based semiconductor layer and Ga atoms in the p-type GaN-based semiconductor layer dissolve into the contact resistance improving layer; d) removing the contact resistance improving layer from the p-type GaN-based semiconductor layer; and e) forming a p-side electrode and an n-side electrode connected with the p-type GaN-based semiconductor layer and the n-type GaN-based semiconductor layer, respectively.