Patent ID: 8168995

Claim:
A nitride based semiconductor light emitting diode (LED) comprising: a substrate; an n-type nitride semiconductor layer formed on the substrate, the n-type nitride semiconductor layer having the top surface divided into a first region and a second region with a finger structure, so that the first region and the second region are meshed with each other; an active layer formed on the second region of the n-type nitride semiconductor layer; a p-type nitride semiconductor layer formed on the active layer; a reflective electrode formed on the p-type nitride semiconductor layer; a p-electrode formed on the reflective electrode; an n-electrode, having a square outline, formed on the first region of the n-type nitride semiconductor layer; and only four n-type electrode pads which are formed adjacent to the edge of the n-electrode thereon, wherein the second region is not cut off by the first region and is a continuous surface, wherein two of the n-type electrode pads are located on two corners of a first side of the n-type semiconductor layer, and the other two n-type electrode pads are symmetrically located on a second side, which is opposite the first side, and are separated by a distance smaller than the distance between the two of the n-type electrode pads on the corners of the first side, and at the two corners of the second side facing the two of the n-type electrode pads located on the first side, and at the point of the first side facing the other two n-type pads located on the second side, no further n-electrode pads are located.