Patent ID: 6838701
Filing Date: 2005-01-04
Classification: H01L,H01S

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