Patent ID: 9680050
Date: 2017-06-13
CPC Classifications: H01L

Claim:
1. A method of manufacturing a semiconductor light emitting device, the method comprising: forming a light emitting structure having a first semiconductor layer, an active layer, and a second semiconductor layer sequentially grown on a semiconductor growth substrate; forming a second electrode layer on the second semiconductor layer; forming a plurality of recesses, each of which penetrating the second electrode layer, the second semiconductor layer, and the active layer to expose a portion of the first semiconductor layer; forming an insulating layer to cover an upper surface of the second electrode layer and side walls of the recesses; forming a first electrode disposed on the insulating layer and having a plurality of contact holes, each of which being electrically connected to the exposed portion of the first semiconductor layer, by depositing a conductive material on the insulating layer and within the recesses; forming a conductive substrate on the first electrode to be electrically connected to the first electrode; removing the semiconductor growth substrate from the light emitting structure; removing a portion of the light emitting structure to expose a portion of the second electrode layer at the interface between the second electrode layer and the second semiconductor layer; and forming an electrode pad on the exposed region of the second electrode layer; and forming a passivation layer disposed to cover at least a side surface of the active layer in the light emitting structure, wherein a contact area between the first electrode layer and the first semiconductor layer is 3% to 13% of a total area of a second surface of the light emitting structure.