Patent ID: 7176578

Claim:
A processed thin film substrate, in order to produce a printed circuit card or board, having a plurality of microvias going or passing through said thin film substrate and electrically connected along faced-away surfaces, in order to form an electric circuit, where; a; at least certain selected surface sections of the thin film substrate are treated with accelerated particles, b; that the velocity of said particles, when they hit said selected surface section, and the mass of the particles are mutually adapted to such values that the kinetic energy associated to the particle becomes chosen so that at least some particles, will pass through said thin film substrate, in order to allow the formation of nano-wires or latent nano-tracks traversing said thin film substrate, c; that selected latent traversing nano-tracks are processed in order to form real nano-tracks traversing the thin film substrate, d; that said real nano-tracks are filled with a material, having chosen electrically conducting properties, for the formation of said through-hole microvias, e; and that a plurality of through-hole micros or vias are electrically interconnected by means of at least one material applied to the faced-away surfaces of the thin film substrate and having chosen electrically conducting properties, a first number of said real nano-tracks being filled with a first material (M 1 ), having chosen electric properties, for the formation of a first number of, here denominated, first vias (V 10 , V 30 , V 50 ), while a second number of said real nano-tracks are filled with a second material (M 2 ), having chosen electric properties, for the formation of a second number of, here denominated, second vias (V 20 , V 40 , V 60 ), characterized in that the first material (M 1 ) and the second material (M 2 ) of selected first and second vias (V 1 –V 60 ) are chosen having mutually different electric properties, that the material, surface-applied to the thin film substrate and coated on both sides of the thin film substrate, is distributed and/or adapted in order to allow the electrical interconnection of first vias, allocated said first material, with second vias, allocated said second material, and that a first via (V 10 ) included in a series connection and a last via (V 60 ) included in said series connection are co-ordinated for presenting an electric thermocouple and/or a circuit arrangement.