Semiconductor laser

Details Semiconductor laser Semiconductor laser

1984-05-25

1985-10-08

Davie, James W.

Coherent light generators

Particular temperature control

Heat sink

357 81, H01S 319

Patent

active

045464782

ABSTRACT:
A mounting of semiconductor laser chip on a heat sink or metal mount is improved so as to enable high accuracy of position and direction. A heat sink or metal mount, on which a semiconductor laser chip is mounted, comprises two parts, namely a main mount or larger portion and a sub-mount or smaller portion. The semiconductor laser chip is soldered by a solder layer on the sub-mount utilizing a microscope so as to assure an accurate position and an accurate direction with respect to the sub-mount. Then, the sub-mount is soldered on the main mount by a solder layer with an accurate relation both in position and direction by engaging a linear ridge as a first engaging means provided on the upper face of the main mount with a straight groove and a rear end face as a second engaging means, or by engaging a square recess as a first engaging means and the square bottom of the sub-mount as a second engaging means with each other. As a result of the above-mentioned structure, accurate position and direction of the semiconductor laser chip with respect to the mount is easily obtainable with a high yield.

REFERENCES:
patent: 4347655 (1982-09-01), Zory et al.
patent: 4411057 (1983-10-01), Duda et al.

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