Patent ID: 8120047

Claim:
A III-nitride semiconductor light-emitting device, comprising: a substrate with a first groove and a second groove formed therein, the substrate including a first surface and a second surface opposite to the first surface; a plurality of III-nitride semiconductor layers including a first III-nitride semiconductor layer formed over the first surface of the substrate and having a first conductivity type, a second III-nitride semiconductor layer formed over the first III-nitride semiconductor layer and having a second conductivity type different from the first conductivity type, and an active layer disposed between the first and second III-nitride semiconductor layers and generating light by recombination of electrons and holes; a first opening formed on the first groove along the plurality of III-nitride semiconductor layers; a second opening formed on the second groove along the plurality of III-nitride semiconductor layers; a first electrode electrically connected from the second surface of the substrate to the first III-nitride semiconductor layer in the first opening through the first groove; and a second electrode electrically connected from the second surface of the substrate to the second III-nitride semiconductor layer through the second groove and the second opening.