Wiring board

Details Wiring board Wiring board

2006-02-22

2009-12-01

Patel, Ishwar (I. B.) (Department: 2841)

Electricity: conductors and insulators

Conduits, cables or conductors

Preformed panel circuit arrangement

C174S260000

Reexamination Certificate

active

07626124

ABSTRACT:
A wiring board has a circuit pattern that includes metal foil attached to an insulating layer, and a built-up circuit pattern disposed on top of the metal foil circuit pattern. The built-up circuit pattern is an increased thickness laminate of cold spray processed metal material. Even when a power semiconductor is mounted on the built-up circuit pattern, the heat that is generated by losses therein can be diffused by the built-up circuit pattern. The wiring board has excellent heat dissipation, can be manufactured by a small number of process steps, and is of low cost.

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