Patent ID: 6486394
Filing Date: 2002-11-26
Classification: H05K,Y10T

Abstract:
A method for manufacturing shielded interconnecting conductors (1) from semifinished products (H1, H2, H3) comprising the steps of:providing a first semifinished product (H1) having at least one layer of conductors, said at least one layer of conductors including signal conductors (10, 10â€²) and shielding conductors (12, 12â€², 13, 13â€²); providing at least one second semifinished product (H2, H3), said at least one second semifinished product having shielding material (23, 33); joining with a dielectric layer (15, 25, 35) the second semifinished product to the at least one layer of conductors (10, 10â€², 12, 12â€², 13, 13â€²); photochemically structuring the shielding material (23, 33) to provide openings (22, 22â€², 32, 32â€²) therein, said openings following the shielding conductors (12, 12â€², 13, 13â€²) and extending to the dielectric (15, 25, 35); selectively removing portions of the dielectric (15, 25, 35) at locations of the openings (22, 22â€², 32) in the shielding material (22, 33) until the openings extend to the shielding conductor (12, 12â€², 13, 13â€²); and, forming electrical connections between the shielding material (23, 33) and the shielding conductors (12, 12â€², 13, 13â€²) through the openings in the shielding material so that said signal conductors (10, 10â€²) are insulated by dielectric (15, 25, 35) and are shielded by the shielding conductors (12, 12â€², 13, 13â€²), which are electrically connected to the shielding material.