Patent ID: 7485482

Claim:
A method for manufacturing a vertical group III-nitride light emitting device comprising steps of: (i) forming an undoped GaN layer and an insulating layer sequentially on a basic substrate; (ii) selectively etching the insulating layer to form an insulating pattern on the undoped GaN layer; (iii) sequentially forming an n-doped Al x Ga y In (1-x-y) N layer, where 0≦x≦1, 0≦y≦1, 0≦x+y≦1, an active layer and a p-doped Al m Ga n In (1-m-n) N layer, where 0≦m≦1, 0≦n≦1, 0≦m+n≦1 on the insulating pattern; (iv) forming a conductive substrate on the p-doped Al m Ga n In (1-m-n) N layer; (v) removing the basic substrate, the undoped GaN layer and the insulating pattern to expose a rough pattern on the n-doped Al x Ga y In (1-x-y) N layer; and (vi) forming an n-electrode on a part of the exposed surface of the n-doped Al x Ga y In (1-x-y) N layer.