Patent ID: 8758067

Claim:
An electrical interconnect adapted to provide an interface between contact pads on an IC device and a PCB, the electrical interconnect comprising: a multi-layered substrate including a plurality of dielectric layers comprising a plurality of first openings with first dielectric surfaces having first cross-sections, a plurality of second openings with second dielectric surfaces having second cross-sections, and a plurality of center openings with center dielectric surfaces connecting the first and second openings, the center openings comprising at least one cross-section greater than the first and second cross-sections; a metalizing layer formed on at least one of the first dielectric surface, the second dielectric surface, or the center dielectric surface; a spring probe contact members located in a plurality of the center openings, the contact members comprising first contact tips extending through the first opening and above the first surface, second contact tips extending through the second openings and above the second surface, and center portions located in the center openings, the center portions of the contact members comprise a shape adapted to bias the first and second contact tips toward the IC device and PCB, respectively; and a dielectric material located on the metalizing layer that insulates the contact members from the metalizing layer.