Patent ID: 7162796

Claim:
A method of making an interposer structure for providing electrical communication between an array of electrical leads of an integrated circuit and external circuitry, the method comprising: providing a substrate including a dielectric material; forming a depression into a surface of the substrate, the depression configured to receive the integrated circuit; and forming an array of contact structures over the substrate, positioned adjacent to the depression, each of the contact structures including: a raised member extending away from the substrate and having a top surface distal to the substrate; a conductive layer disposed over at least a portion of the top surface of the raised member, the array of contact structures being sized and spaced so the conductive layer may directly electrically engage an electrical lead of the array of electrical leads; and an electrical trace disposed over the surface of the substrate, the electrical trace being in electrical contact with the conductive layer, the electrical trace comprising a conductive material so as to provide electrical communication between the conductive layer and the external circuitry.