Patent ID: 6828682
Filing Date: 2004-12-07
Classification: H01L

Abstract:
A substrate, comprising:a non-electrically conductive core having a first side and an opposing second side, a first electrically conductive layer disposed on the first side of the core, a second electrically conductive layer disposed on the second side of the core, electrically conductive core vias extending from the first side of the core to the second side of the core, the core vias disposed in an array, an electrically conductive contact formed on an upper build-up layer on the first side of the core, the contact overlying the array of core vias, a first electrically conductive via electrically connecting the contact to an intervening build-up layer disposed between the upper build-up layer and the first electrically conductive layer, the first via overlying the core via array, and a second electrically conductive via electrically connecting the intervening build-up layer and the first electrically conductive layer, the second electrically conductive via not disposed over the core via array.