Patent ID: 7885303

Claim:
A nitride semiconductor laser device formed by growing a group III nitride semiconductor multilayer structure on a substrate, wherein the group III nitride semiconductor multilayer structure has a laser resonator including an n-type semiconductor layer, a p-type semiconductor layer and a light emitting layer held between the n-type semiconductor layer and the p-type semiconductor layer, the laser resonator is arranged to be offset from a center with respect to a device width direction orthogonal to a resonator direction toward one side edge of the device, a wire bonding region having a width of not less than twice a diameter of an electrode wire to be bonded to the device is formed between the laser resonator and the other side edge of the device, and a substrate dividing groove trace is formed on a side edge of the device, and a device thickness h of the remaining portion excluding the substrate dividing groove trace and a device width W in the direction orthogonal to the resonator direction satisfy W≧1.4 h.