Patent ID: 7207105
Filing Date: 2007-04-24
Classification: H01L,H05K,Y10T

Abstract:
1. A method for producing an integral ceramic circuit board comprising: providing a ceramic substrate on a main surface of a porous molded product made of silicon carbide, the main surface being provided with or without a recess; providing at least one metal foil in contact with both of the ceramic substrate and the porous molded product so as to provide a layered structure; putting the layered structure in a pressure vessel; subjecting a metallic material containing aluminum as a main component to high pressure forging to impregnate the metallic material containing aluminum as a main component into voids in the porous molded product and to make a metal layer made of the at least one metal foil integral with the porous molded product and the ceramic substrate; and then forming a circuit from the metal layer.