Patent ID: 6954986

Claim:
A method for manufacturing at least one of electrical connecting elements and semifinished products comprising the steps of: providing a plastically deformable dielectric substrate layer ( 1 , 31 ) having a first side and a second side, the first side of said plastically deformable dielectric substrate ( 1 , 31 ) layer being essentially covered by a first conducting layer ( 3 , 33 ); piercing the dielectric substrate layer ( 1 , 31 ), from the first side through the first conducting layer ( 3 , 33 ) with a perforation tip ( 11 ) of a micro-perforation tool, to thereby form pierced holes, said pierced holes having walls that are at least partially covered by conductor material of said first conducting layer ( 3 , 33 ) and a perforation depth (d) that is greater than a total thickness of the substrate layer ( 1 , 31 ) and the first conducting layer ( 3 , 33 ); and, plating the pierced first side with electrically conducting material.