METHOD OF MANUFACTURING PRINTED CIRCUIT BOARDS HAVING VIAS WITH WRAP PLATING

摘要

A printed circuit board (PCB) has one or more filled and plated vias formed from a countersunk via hole. A laminated substrate is formed and one or more via holes are made therein. The ends of the one or more via holes are then countersunk. The sidewall of the one or more via holes and the countersunk surfaces of the one or more via holes are plated with a conductive material. The laminated substrate including the one or more counter-sunk and plated via holes is processed in conventional fashion, including filling of the one or more via holes. A conductive cap layer is preferably formed over both ends of the plated via hole having fill composition.