Patent ID: 6479325
Filing Date: 2002-11-12
Classification: H01L,H01S

Abstract:
A method of manufacturing a semiconductor laser device, comprising the steps of:providing a laser chip, a supporting plate which supports the laser chip, a mounting plate, a first solder film positioned between the laser chip and the mounting plate and a second solder film positioned between the mounting plate and the supporting plate to form a stacked laser chip structure; applying heat at a temperature of approximately 280Â° C. to the stacked laser chip structure sufficient to melt the first solder film and the second solder film; and applying pressure of approximately 1.2Ã—10âˆ’4 Pa to the stacked laser structure during the heating step to cause simultaneous adhering of the laser chip, the mounting plate and the supporting plate to each other thereby suppressing deterioration in performance of the semiconductor laser device due to excessive heating of the stacked laser chip structure.