Patent ID: 7279365

Claim:
A method of manufacturing a heat-conductive substrate comprising: forming a conductive circuit element by processing a metal sheet to have a pattern, attaching an adhesive film to a components-mounting surface of the conductive circuit element, providing an integrated body of sheet-formed flexible thermosetting resin composite and a heat dissipation plate, and forming a laminated member by laminating the integrated body onto the conductive circuit element so that the thermosetting resin composite side makes contact with the conductive circuit element at the surface opposite the components mounting surface, and then, heat-pressing the laminated member so that a through-hole in the conductive circuit element is filled with the thermosetting composite, and the laminated member is transformed into an integrated body by partially curing the thermosetting composite to a half-cured state, completely curing the thermosetting composite contained in the laminated member, and peeling the adhesive film off the laminated member in either its half-cured or completely cured state, wherein the conductive circuit element comprises a hollow at the surface opposite the components mounting surface, and a protrusion at the corresponding place of mold, the hollow and the protrusion are engaged for positioning when attaching the adhesive film on the components-mounting surface of the conductive circuit element.