Patent ID: 8664019

Claim:
A method for manufacturing a vertical group III-nitride light emitting device comprising steps of: (i) preparing a basic substrate having a rough pattern formed on a top surface thereof; (ii) forming an n-type clad layer, an active layer and a p-type clad layer sequentially on the basic substrate, the clad layers and the active layer having compositions expressed by Al x Ga y In 1-x-y N, where 0≦x≦1, 0≦y≦1, and 0≦x+y≦1; (iii) forming a conductive substrate on the p-type clad layer; (iv) removing the basic substrate so as to expose a rough pattern formed on a bottom surface of the n-type clad layer; and (v) forming an n-electrode on a partial area of the exposed bottom surface of the n-type clad layer, wherein the basic substrate consists of a single material, the n-type clad layer is grown in direct, physical contact with a top surface of the basic substrate, and at least a part of the n-type clad layer is grown in an area of the top surface of the basic substrate in which the rough pattern is not formed.