METHOD OF CONNECTING MUTUALLY TRACKS PRESENT ON SIDE SURFACES OF SUBSTRATE OPPOSITE TO EACH OTHER

摘要

PROBLEM TO BE SOLVED: To provide a method and a device for forming a conductive connection part between two conductive tracks present on side surfaces of a conductive substrate opposite to each other.SOLUTION: A method for forming a conductive connection part between two conductive tracks present on side surfaces of a conductive substrate opposite to each other includes the steps of: a) preparing a substrate which has at least one first conductive track present on one side surface of the substrate and at least one second conductive track present on the other side surface of the substrate opposite to the one side surface; b)forming a through hole which penetrates the substrate and mutually opposite parts of the first and second tracks; and c) forming, through the through hole, a conductive connection part between the first track formed with the through hole penetrating through and a second hole formed with the through hole penetrating through.