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1968 - triangular diamond heat sink (center) improves the performance of a gallium arsenide injection laser

DIAMOND HEAT SINKS IMPROVE SEMICONDUCTOR PERFORMANCE

E&MP123.002

Semiconductors

March 19, 1968

A triangular diamond heat sink (center) improves the performance of a gallium arsenide injection laser. The laser is the rectangular piece between the heat sink and the ball contact. A metal spring presses down on the ball contact, insuring good electrical contact to the semiconductor. The diamond heat sink, about two millimeters on a side, is mounted on a piece of tin-plated copper. During mounting the tin is melted, forming the mottled pattern on the side of the substrate.


Original Caption by Science Service
Bell Telephone Laboratories



National Museum of American History

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