Patent ID: 7167497
Filing Date: 2007-01-23
Classification: H01L,H01S

Abstract:
1. A nitride semiconductor laser device comprising: an n-type nitride semiconductor layer, an active layer on said n-type nitride semiconductor layer, a p-type nitride semiconductor layer on said active layer, said p-type nitride semiconductor layer having a p-type contact layer as a top layer and a ridge that includes at least said p-type contact layer, the ridge being substantially parallel to a direction of resonance, and a p-type ohmic electrode that makes ohmic contact with said p-type contact layer of said ridge, wherein a first insulation film having a first a aperture for opening an upper surface of said ridge covers at least a side face of said ridge and a proximate region outside of said side face, wherein said p-type ohmic electrode makes contact with said p-type contact layer through said aperture, and a second insulation film is on said first insulation film.