Patent ID: 6909120

Claim:
A nitride semiconductor light emitting device formed on a substrate, comprising a light emitting layer including a quantum well layer and a barrier layer in contact with said well layer, wherein said quantum well layer is formed of a nitride semiconductor containing Ga, N and an element X said element X including at least one element selected from As, P and Sb, said well layer has an atomic fraction X/(N+X) of less than 30%, said barrier layer is formed of a nitride semiconductor containing Ga, N and an element Y, said element Y including at least one element selected from As, P and Sb, said barrier layer has an atomic fraction Y/(N+Y) of less than 15%, and said barrier layer has a thickness of more than 1 nm and less than 40 nm, said substrate is a pseudo GaN substrate including a GaN substrate layer grown to cover a main surface of a seed substrate and a plurality of stripe-shaped growth inhibiting films formed thereon, said growth inhibiting films serving to restrict growth of said GaN substrate layer, and wherein said light emitting device includes a ridge stripe portion for narrowing current, said ridge stripe portion being formed avoiding a portion above the center in width of said stripe-shaped growth inhibiting film and a portion above the center in width of a region unprovided with said growth inhibiting film.