Patent ID: 7998771

Claim:
A method of manufacturing a light emitting diode, comprising the steps of: (a) forming a buffer layer on a substrate; (b) forming an n-type electrode layer on the buffer layer, the n-type electrode layer having a multi-layered structure that includes an n-type current spreading layer, wherein the n-type current spreading layer includes a hetero-junction structure; (c) forming an active layer on the n-type electrode layer; (d) forming a p-type electrode layer on the active layer, the p-type electrode layer having a multi-layered structure that includes a p-type current spreading layer, wherein the p-type current spreading layer includes a hetero-junction structure; (e) etching the p-type electrode layer after forming the p-type electrode layer, to expose the n-type current spreading layer of the n-type electrode layer; (f) forming a first trench in the p-type current spreading layer and forming a second trench in a portion of the n-type current spreading layer that has been exposed by the etching; (g) inserting a first metal electrode layer into the first trench and inserting a second metal electrode layer into the second trench; and (h) forming a transparent electrode layer on the first metal electrode layer.