Light emitting semiconductor mount

Details Light emitting semiconductor mount Light emitting semiconductor mount

1983-09-13

1985-10-29

Davie, James W.

Coherent light generators

Particular component circuitry

Optical pumping

357 84, 372 36, H01S 319, H01L 3300

Patent

active

045503338

ABSTRACT:
A light emitting semiconductor mount comprising a metal heat sink support having a top surface partitioned into three steps comprising an upper step, a central step and a lower step. A light emitting semiconductor device is mounted on the central step and a dielectric block mounted in the lower step. The dielectric block has a top surface with two steps, a lower step, positioned adjacent to the central step, and an upper step. A metal film is deposited on the block top surface. The metal film may extend down one side surface of the block to form a contact pad for a power source connection. Means are provided for electrically coupling one terminal of the light emitting semiconductor device to the block lower step. The other terminal of the light emitting semiconductor device comprises the heat sink support per se. The improvement in the mount comprises a flat bar having one end secured to the surface of the block upper step and the other end thereof secured to the surface of the heat sink support upper step. The length and width of the bar are substantially the same as the respective width and depth of the metal heat sink support. The bar may be comprised of metal or dielectric. If a dielectric bar is chosen, then one end of the bar is provided with a metal film on its flat surfaces with electrical continuity provided between the metalized end surfaces at the one bar end and then, this one end is secured to the surface of the block upper step while the other end thereof is secured to the surface of the support upper step. Alternatively, both ends of the dielectric bar may be provided with a metal film on its flat surfaces with electrical continuity between the metalized end surfaces at each bar end. Transparent window plates may be secured to opposite sides of the mount to provide a hermetically sealed cavity in the mount in the region between the bar and the support central step.

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Dufft, Wilm. H. and Camlibel, I., A Hermetically Encapsulated AlGaAs Laser Diode, Conference Proceedings of the 30th Electronic Components Conference, San Francisco, CA, (4/1980), pp. 261-269.
Hitachi Laser Diode Application Manual, Jun. 1979, pp. 25 and 26.

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