Two layer circuit board with screening foil

H - Electricity – 05 – K

Patent

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Details

356/1, 356/22

H05K 1/14 (2006.01) H05K 1/02 (2006.01) H05K 1/11 (2006.01) H05K 1/16 (2006.01) H05K 3/00 (2006.01) H05K 3/42 (2006.01)

Patent

CA 1232081

ABSTRACT OF THE DISCLOSURE A two-layer circuit board 1 comprises two plates 2, 3 supporting two conductor configurations 7, 8. The board 1 is provided with a screening foil 4 and has a hole 9 with a metallic lining 10 connected electrically to the screening foil 4. The lining 10 is covered by an insulating layer 14 onto which a conductive metal layer is applied. The metal layer, electrically insulated from the lining 10 by the insulating layer 14, is connected electrically at both of its ends 17, 18 with the conductors 7, 8. Such a coaxial design of the hole 9 enables a total neutralization of interference between neighbouring cross-contacts.

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