Patent ID: 6426470
Filing Date: 2002-07-30
Classification: H05K,Y10T

Abstract:
A method for forming at least one multisegnmented plated through hole (PTH) in a substrate, comprising the steps of:providing a first laminate having a dielectric layer and a second laminate having a dielectic layer; forming a first selective plate core (SPC) by sandwiching a dielectric layer between a first metal layer and a second metal layer, wherein the dielectric layer of the first SPC includes a nonplatable dielectic layer; forming the substrate by sandwiching the first SPC between the first laminate and the second laminate; forming a first through hole through the substrate; and metalizing a wall of the first through hole to form a first PTH of the at least one PTH, resulting in a metal plating on the first PTH that: plates to the first laminate, plates to the second laminate, dome not plate to the first SPC, and is not continuous from the first laminate to the second laminate.