Circuits Made Of Solid Aluminum: Unisys Is On The Trail

Unisys Corp. raised eyebrows two months ago by saying that it is considering a radical approach to making printed-circuit boards: putting the circuitry on solid aluminum sheets instead of laying copper patterns on a laminated base. What makes the idea especially novel is its source: the former Soviet republic of Belarus. By now, aluminum circuit boards should be coming off an experimental production line whose finishing touches were added on Aug. 6, says Thomas D. Watson, strategic planning director for electronic systems.

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