Patent ID: 7316849

Claim:
A band-shaped semi-finished product comprising a ductile material including copper-base materials or material composites thereto, having a maximum thickness of 0.5 mm wherein on oppositely lying sides of the semi-finished product at least one pair of oppositely aligned wedge-shaped notches is provided, and wherein between tips of the wedge-shaped notches there exists a single web of material, the thickness of which is 5% to 40% of the thickness of the semi-finished product, so that the web between the wedge-shaped notches is capable of being manually torn off using little force and without a cutting deformation through an oppositely directed deflection of the semi-finished product areas defined by the notch pair, wherein a cross-section sliced through the band-shaped semi-finished product transverse to the notches is solid, and wherein said band-shaped semi-finished product includes a coating comprising one of a tin-plated, silver-plated or nickel-plated coating that coats the surface of the semi-finished product including the notches thereof.