Patent ID: 7123640
Filing Date: 2006-10-17
Classification: B82Y,H01L,H01S

Abstract:
1. A nitride semiconductor laser apparatus comprising a nitride semiconductor laser device chip, a support member for placing said chip thereon, and a solder for joining said laser device chip to said support member, wherein: said chip has a nitride semiconductor stacked-layered structure of a hexagonal crystal system including an n-type layer, an active layer and a p-type layer successively stacked on a first main surface of a nitride semiconductor substrate of the same hexagonal crystal system and has a ridge stripe structure formed in a portion of said p-type layer; said chip has a length L a total thickness of said nitride semiconductor substrate and said nitride semiconductor stacked-layered structure is more than 50 μm and less than 200 μm; a multilayer metal film including an outermost layer of Au is formed on said nitride semiconductor laser device chip; said outermost layer of Au is bonded to said support member with said solder; and said solder includes one of AuSn, AgSn, AuGe, PbSn, InSn, and AgCuSn.