Patent ID: 6211468
Filing Date: 2001-04-03
Classification: H01L,H05K

Abstract:
A flexible circuit comprising:formed of an electrically insulating material having a first surface and a second surface;a first electrically conductive trace on the first surface and a second electrically conductive trace on the second surface;a passage extending through the substrate from an end of the first trace to an end of the second trace, the passage including a first beveled opening of a first size formed in the first surface, and a second beveled opening of the first size formed in the second surface, the first and second openings being interconnected by an aperture of a second size, less than the first size; andan electrically conductive surface on the passage for electrically interconnecting the first trace and the second trace wherein the first beveled opening is gradually sloped into the first surface and the second beveled opening is gradually sloped into the second surface so that the first and second beveled openings intersect at the aperture wherein a centroidal axis of the first beveled opening is offset from a centroidal axis of the second beveled opening.