Patent ID: 6905343

Claim:
An interposer assembly for forming redundant electrical connections with contact pads on substrates positioned above and below the assembly, said assembly comprising: a) an insulating plate having top and bottom sides and a plurality of passages extending through the thickness of the plate; and b) a plurality of metal contacts, each contact disposed in one of said passages, each contact including a first pair of spaced contact points at the top side of the plate, a second pair of spaced contact points at the bottom side of the plate, and a spring portion extending between said first pair of contact points and said second pair of contact points, said spring portion spacing said pairs of contact points apart a distance greater than the thickness of the plate when the spring portion is unstressed; each contact formed from uniform thickness strip stock having a first sheared edge, and at least one contact point comprises a shear-rounded corner of said edge located above the adjacent surface of the metal contact; wherein the shear rounded corner forms an electrical connection with a pad.