Semiconductor laser device

Details Semiconductor laser device Semiconductor laser device

1996-05-02

1998-03-17

Davie, James W.

Coherent light generators

Particular temperature control

Heat sink

372 46, H01S 319

Patent

active

057295611

ABSTRACT:
A semiconductor laser device includes a semiconductor laser chip; a heat sink; a solder layer adhering the semiconductor laser chip to the heat sink; a lower electrode on the semiconductor laser chip including a non-alloying layer not alloyed with the solder layer and opposite the heat sink and directly opposite to a center line in a longitudinal direction of a light emitting region of the semiconductor laser chip and alloying layers on regions of the lower electrode, except for the region of the non-alloying layer, alloyed with the solder layer. Internal stress due to the difference in coefficients of thermal expansion of the semiconductor laser chip and the heat sink and applied to the light emitting region is reduced, and GaAs destruction at the light emitting region is prevented.

REFERENCES:
patent: 4856015 (1989-08-01), Matsui et al.

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