Patent ID: 7278207

Claim:
A method of making an electronic package comprising the steps of: providing a substrate having a first surface, said first surface having a plurality of conductive contacts thereon; positioning a layer of dielectric material having a first and second surface substantially on said first surface of said substrate, said layer of dielectric material formed by laminating a layer of an organic polymeric material onto both sides of a first metal layer, said first metal layer including at least one clearance hole therein, and positioning a second layer of metal having a preselected thickness on one surface of said layer of organic polymeric material, said second layer of metal and said first metal layer being separated by said layer of organic polymeric material; forming at least one through hole in said layer of dielectric material in alignment with said at least one of said plurality of said conductive contacts, said at least one through hole having a side wall; positioning a conductive material in said at least one through hole so as to form a column of conductive material that substantially fills said through hole and is in electrical contact with said at least one of said plurality of conductive contacts; and positioning at least one conductive member on said column of conductive material in said at least one through hole and in electrical contact with said conductive material.