ALUMINUM/SILICON CARBIDE COMPOSITE AND HEAT RADIATION PART MAKING USE OF THE SAME

摘要

An aluminum/silicon carbide composite that is suitable as a base board for power module. There is provided a base board for power module of aluminum/silicon carbide composite, characterized in that the aluminum/silicon carbide composite is one consisting of a flat-plate silicon carbide porous body impregnated with a metal composed mainly of aluminum, and that only its one major surface has an aluminum layer consisting of a metal composed mainly of aluminum while as another major surface, its backside has exposure of the aluminum/silicon carbide composite, and that the configuration thereof is rectangular or one consisting of a rectangle having, added thereto, a zone surrounding outer circumferential hole portions. Accordingly, plating capability is imparted by disposing the aluminum layer on one major surface; the degree of planarity is enhanced by polishing of the backside so as to realize exposure of the aluminum/silicon carbide composite; and the warpage configuration after polishing of the backside is controlled by regulating the thickness of the aluminum layer.