METAL CORE MULTILAYER PRINTED WIRING BOARD

摘要

PROBLEM TO BE SOLVED: To efficiently radiate heat, which has been released from a heating element, to the outside of a printed wiring board without impairing the packaging density of circuits and to mount an element on the side of the wiring board opposite to the side on which the heating element exists.

SOLUTION: A metal core multilayer printed wiring board (1) obtained by forming one or more of at least one inner layer of a laminate having an insulating layer and a conductor layer stacked alternately from a metal plate and using the metal plate as a core is characterized in that the metal plate (13) is disposed below a portion wherein a heating element (10) is to be mounted, and a surface layer over which the heating element (10) is to be mounted and the metal plate (13) of the inner layer are connected via a BVH (12) and a heat radiation layer (14) is formed over the surface layer.

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