Patent ID: 7653107

Claim:
A semiconductor light-emitting device comprising: first and second semiconductor laser elements disposed on a common substrate, the first and second semiconductor lasers having a plurality of semiconductor layers disposed on the common substrate and respective spaced-apart light-emitting areas; Au plating on principal surfaces of the first and second semiconductor laser elements; and a submount on which the first and second semiconductor laser elements are mounted with solder interposed between and contacting the Au plating and the submount, wherein each of the first and second semiconductor elements includes, on opposite sides of the respective light-emitting areas, a first area and a second area, average thickness of the Au plating is different in the first area and in the second area of each of the first and second semiconductor laser elements, and separation between the first areas of the first and second semiconductor laser elements is smaller than separation between the second areas of the first and second semiconductor laser elements.