Patent ID: 7154139
Filing Date: 2006-12-26
Classification: H01L,H05K

Abstract:
1. A plurality of embedded capacitors embedded in a multilayer substrate and having different capacitance values, comprising: a plurality of dielectric substrate layers arranged in a stack; at least one first electrode provided for each of said plurality of embedded capacitors formed from a conductive layer disposed on a surface of at least one of said substrate layers, a plurality of second electrodes, at least one of said second electrodes respectively provided for each of said plurality of embedded capacitors; each said second electrode comprised of a conductive material respectively contained within a bore which extends through at least one of said substrate layers, each said second electrode terminating at an end face having an end face surface area defined by a cross-sectional area of said born and aligned with a planar surface defined by one of said substrate layers at a location separated from said at least one first electrode by at least one substrate layer; wherein each said embedded capacitor with a different capacitive value has a different said end face surface area.