Patent ID: 9166364
Filing Date: 2015-10-20
Classification: G01N,H01L,H01S

Abstract:
1. An article of manufacture comprising: a first contact surface of a semiconductor laser chip formed to a target surface roughness having a maximum peak to valley height of between approximately 2% and 8% of a barrier layer thickness; a barrier layer having the barrier layer thickness applied to the first contact surface, the barrier layer being distinct from the semiconductor laser chip and comprising a non-metallic, electrically-conducting compound; and a carrier mounting to which the semiconductor laser chip is soldered along the barrier layer using a solder composition, the semiconductor laser chip being soldered to the carrier mounting by a soldering process comprising melting the soldering composition by heating the soldering composition to less than a threshold temperature at which dissolution of the barrier layer into the soldering composition occurs, the soldering process occurring such that the barrier layer remains intact to minimize diffusion of elements from the carrier mount, the solder composition, and/or the semiconductor laser chip across the barrier layer to maintain a substantially temporally consistent composition of both the solder composition along the first contact surface and a crystal structure of the semiconductor laser chip.