Patent ID: 7737709

Claim:
A method of changing shapes of surfaces of a plurality of substrates of a probe card assembly, wherein an array of contact elements is disposed on each of the surfaces, the method comprising: activating a first deforming mechanism coupled to a first of the substrates and thereby deforming the surface of the first substrate and planarizing tips of the array of contact elements disposed on the surface of the first substrate; and activating a second deforming mechanism coupled to a second of the substrates and thereby deforming the surface of the second substrate and planarizing tips of the array of contact elements disposed on the surface of the second substrate with the tips of the array of contact elements disposed on the surface of the first substrate, wherein the surface of the first substrate remains deformed until the first deforming mechanism is again activated and the surface of the second substrate remains deformed until the second deforming mechanism is again activated.