Importance

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Abstract

A structure suitable for connecting an integrated circuit to a supporting substrate wherein the structure has thermal expansion characteristics well-matched to the integrated circuit is an interposer. The integrated circuit and the interposer are comprised of bodies that have substantially similar coefficients of thermal expansion. The interposer has a first surface adapted to electrically and mechanically couple to the integrated circuit. The interposer has a second surface adapted to electrically and mechanically couple to a supporting substrate. Electrically conductive vias provide signal pathways between the first surface and the second surface of the interposer. Various circuit elements may be incorporated into the interposer. These circuit elements may be active, passive, or a combination of active and passive elements.

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First Claim