Patent ID: 9318662
Filing Date: 2016-04-19
CPC Classification: H01L

Claim Text:
1. A light emitting device, comprising: a light emitting structure comprising a first conductivity type semiconductor layer, a second conductivity type semiconductor layer, and an active layer disposed between the first conductivity type semiconductor layer and the second conductivity type semiconductor layer; a first electrode disposed on the first conductivity type semiconductor layer; and a second electrode disposed on the second conductivity type semiconductor layer, wherein the light emitting structure comprises a mesa etching region where the second conductivity type semiconductor layer, the active layer, and the first conductivity type semiconductor layer are etched, thereby exposing a portion of the first conductivity type semiconductor layer in the mesa etching region, and the first electrode is disposed on the exposed portion of the first conductivity type semiconductor layer in the mesa etching region, wherein a first electrode layer is disposed between the second conductivity type semiconductor layer and the second electrode, and a plurality of second electrode layer units is disposed between portions of the first electrode layer spaced from each other at opposite sides of the mesa etching region, and wherein opposite ends of the second electrode layer are disposed directly on the first electrode layer.