Patent ID: 6303881
Filing Date: 2001-10-16
Classification: H01R,H05K

Abstract:
A double-sided printed wiring board comprising:an insulator substrate having a via having sidewalls extending therethrough;a first electrically conductive layer electrolytically disposed over both surfaces of said insulator substrate and through said via along said sidewalls between the opposite sides of said insulator substrate, and said first electrically conductive layer leaving a via-through-hole within said via and which via-through-hole extends between opposite sides of said insulator substrate;a mass of conductive material filling said via-through-hole and having opposite ends located at each of the opposite sides of said insulator substrate, respectively; anda second electrically conductive layer covering said first electrically conductive layer disposed over both surfaces of said insulator substrate and covering both ends of said mass of conductive material on both sides of said insulator substrate.