Patent ID: 6891360

Claim:
A plated test probe for making electrical contact with a plurality of solder ball connections on an integrated circuit device comprising: a first fan-out substrate having a first surface; wherein said ran out substrate comprises: multilayer ceramic substrates with thick film wiring; multilayer ceramic substrates with thin film wiring; metallized ceramic substrates with thin film wiring; epoxy glass laminate substrates with copper wiring; or silicon substrates with thin film wiring: said first surface having a plurality of contact locations; a plurality of plated bumps attached to said plurality of contact locations; said plated probe comprising a multilayer structure having: a first adhesion layer formed from a material selected from the group consisting of Cr, Ti, Ta, Hf, Mo, W, Nb, V, Zr, and alloys thereof; a second layer comprising the predominate constituent of a metal bump formed from a material selected from the group consisting of Cu, Pd, Au, Ni, Co, Fe and alloys thereof, a third contact metallurgy layer formed from a material selected from the group consisting of Re, Rh, Ru, Pd, Pt, Au, and alloys thereof.