Patent ID: 6847057

Claim:
A III-nitride light emitting device comprising: a first layer of first conductive type; a first layer of second conductive type; an active region; a tunnel junction, the tunnel junction comprising: a second layer of first conductivity type having a dopant concentration greater than the first layer of first conductivity type; and a second layer of second conductivity type having a dopant concentration greater than the first layer of second conductivity type; a third layer of first conductivity type; a first contact electrically connected to the first layer of first conductivity type; and a second contact electrically connected to the third layer of first conductivity type; wherein the first and second contacts comprise the comprise the same material; the first and second contact material has a reflectivity to light emitted by the active region greater than 75%; the active region is disposed between a layer of first conductivity type and a layer of second conductivity type; and the tunnel junction is disposed between the first layer of first conductive type and the third layer of first conductivity type.