Patent ID: 7586756

Claim:
An apparatus, comprising: a substrate comprising a top surface, a bottom surface, a plurality of electrical vias connecting selected portions of the top surface to selected portions of the bottom surface, and a plurality of electrical connections disposed to connect to at least one external electrical circuit; and at least one surface comprising at least two pluralities of electrodes, each plurality of electrodes electrically separated from the other pluralities of electrodes by at least one dielectric layer; wherein the plurality of electrical vias comprises: a first plurality of vias electrically connecting a first portion of the top surface to a first portion of the bottom surface of the substrate; a second plurality of vias electrically connecting a second portion of the top surface to a second portion of the bottom surface of the substrate; a third plurality of vias electrically connecting the second portion of the top surface to a third portion of the bottom surface of the substrate; and a fourth plurality of vias electrically connecting a plurality of external contact locations on the top side of the substrate to a plurality of external contact locations on the bottom side of the substrate, wherein the first and second portions of the top surface electrically isolated from each other, the first, second and third portions of the bottom surface electrically isolated from each other.