Patent ID: 7443041

Claim:
A microchip package comprises: a microchip device with a top surface and a bottom surface; a plurality of first electrical contacts on said top surface of said microchip device; an interposer with a top surface and a bottom surface, wherein said bottom surface of said interposer affixes to said top surface of said microchip device; a plurality of second electrical contacts on said top surface of said interposer; an aperture having a sidewall defining an opening through said interposer wherein said aperture allows a connection of said plurality of first electrical contacts on said top surface of said microchip device to said plurality of second electrical contacts on said top surface of said interposer; and a tie-bar dividing said aperture into a first portion and a second portion wherein said tie-bar is affixed to said sidewall, wherein a depth of said tie-bar in said aperture is substantially two thirds of said depth of said aperture through said interposer.