Abstract: A sheet laminate for use in a press lay-up between printed circuit board panels having a steel substrate layer and a copper foil layer releasably bonded with resistance welds and adhesive to at least one surface of the substrate layer.
Abstract: A sheet laminate for use in a press lay-up between printed circuit board panels having a steel substrate layer and a copper foil layer releasibly bonded to at least one surface of the substrate layer.
Abstract: A sheet laminate for use in a press lay-up between printed circuit board panels having a steel alloy substrate layer and a copper foil layer disposed on at least one surface of the substrate layer. The foil layer is attached onto the surface of the substrate layer by a plurality of occurrences of adhesive material disposed along the boundary of the foil layer such that gaps are defined between occurrences of the adhesive material.