Patent ID: 8898891
Filing Date: 2014-12-02
Classification: B32B,H01P,H05K,Y10T

Abstract:
1. A method of fabricating a circuit board, the method comprising: forming, on a dielectric core, a plurality of conductive traces, comprising a subset of the plurality of conductive traces, the subset having conductive traces formed to each contain at least one lengthwise channel; and joining the dielectric core comprising the plurality of conductive traces with a plurality of circuit board layers to form a circuit board, wherein joining the dielectric core with a plurality of circuit board layers to form a circuit board comprises stacking the dielectric core with at least one overlying sheet of uncured resin-impregnated woven fiber dielectric material, and bonding the dielectric core with the at least one overlying sheet under pressure and temperature conditions that cause the resin to fill the lengthwise channels of the subset and a region alongside the conductive traces of the subset.