Patent ID: 8754430

Claim:
A light emitting device comprising: a first conductivity type semiconductor layer doped with a first conductivity type dopant; an active layer disposed on the first conductivity type semiconductor layer; a tunnel junction layer including a second conductivity type nitride semiconductor layer disposed on the active layer and a first conductivity type nitride semiconductor layer disposed on the second conductivity type nitride semiconductor layer, wherein the first conductivity type nitride semiconductor layer and the second conductivity type nitride semiconductor layer are PN junctioned; a first electrode disposed on the first conductivity type semiconductor layer; and a second electrode disposed on the first conductivity type nitride semiconductor layer, wherein a portion of the second electrode is in schottky contact with the second conductivity type nitride semiconductor layer through the first conductivity type nitride semiconductor layer, wherein the second electrode comprises: a first contact portion in ohmic contact with an upper surface of the first conductivity type nitride semiconductor layer and a through portion of the first conductivity type nitride semiconductor layer; and a second contact portion in schottky contact with the second conductivity type nitride semiconductor layer.