Patent ID: 7592704

Claim:
A device, comprising: a first element having a first plurality of electrical contacts wherein said first element is selected from a group consisting of an integrated circuit package, an integrated circuit die, a substrate; a second element having a second plurality of electrical contacts wherein said second element is selected from a group consisting of an integrated circuit package, an integrated circuit die, a substrate; and an interposer comprising a plurality of etched, electrically conductive columnar interconnects defined by etched interstices between said interconnects and wherein each columnar interconnect has a first end and a second end, each end having a bonding surface, said interposer further comprising a rigid supporting body formed around said interconnects, said supporting body having a first face defining first apertures exposing said bonding surfaces of said first ends wherein a bonding surface of each first end of said interconnects is bonded and electrically connected to an electrical contact of said first element, and wherein said supporting body has a second face defining second apertures exposing said bonding surfaces of said second ends wherein a bonding surface of each second end of said interconnects is bonded and electrically connected to an electrical contact of said second element, wherein said rigid supporting body comprises a cured polymer filling at least some of said interstices of said interposer between said columnar interconnects.