A flexible circuit with conductive vias and a method of making

Details A flexible circuit with conductive vias and a method of making A flexible circuit with conductive vias and a method of making

H - Electricity

05

K

H05K 3/40 (2006.01) H01L 21/48 (2006.01) H01L 23/498 (2006.01) H01L 23/538 (2006.01) H05K 3/00 (2006.01) H05K 3/38 (2006.01)

Patent

CA 2338102

A flexible circuit includes a flexible non-conductive substrate (12) having a first surface and a second surface. A first electrically conductive trace (18) is provided on the first surface and a second electrically conductive trace (20) is provided on the second surface. A passage (22) extends through the substrate from an end of the first trace to an end of the second trace. The passage includes a beveled opening (26) of a first size formed in the first side and axially aligned with a second beveled opening (28) of the first size formed in the second side. The first and second openings are interconnected by an aperture axially aligned therewith and being of a second size less than the first size. An electrically conductive surface is provided on the passage for electrically interconnecting the first trace and the second trace.

La présente invention concerne un circuit constitué d'un substrat souple (12) non conducteur qui présente des première et seconde surfaces. Une première trace (18) conductrice d'électricité est pratiquée sur la première face, et une seconde trace (20) conductrice d'électricité est pratiquée sur la seconde surface. Un passage (22) s'étend à travers le substrat d'une extrémité de la première trace à une extrémité de la seconde trace. Le passage comprend une ouverture tronconique (26) d'une première dimension formée dans le premier côté et axialement alignée avec une seconde ouverture tronconique (28) de même dimension formée dans le second côté. Les première et seconde ouvertures sont interconnectées au moyen d'un orifice aligné avec elles, d'une seconde dimension inférieure à la première dimension. Une surface électriquement conductrice permet de relier électriquement, par le passage, les première et seconde traces.

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