Patent ID: 7637009
Filing Date: 2009-12-29
Classification: B33Y,C25D,G01R,H05K,Y10T

Abstract:
1. A method for fabricating probes for a probe card assembly, the method comprising: forming, on a flat reusable substrate, a metallic layer having a passive oxidized surface; forming a first photomask on the passive oxidized surface; forming a first plurality of apertures in the first photomask, said first plurality of apertures exposing portions of the passive oxidized surface; forming a first plurality of probe elements of a conductive material in the first plurality of apertures and on the passive oxidized surface; removing the first photomask from the passive oxidized surface; after removing the first photomask, removing the first plurality of probe elements from the passive oxidized surface; then forming a second photomask directly on the passive oxidized surface; forming a second plurality of apertures in the second photomask, said second plurality of apertures exposing portions of the passive oxidized surface; forming a second plurality of probe elements of the conductive material in the second plurality of apertures and on the passive oxidized surface; removing the second photomask from the passive oxidized surface; and after removing the second photomask, removing the second plurality of probe elements from the passive oxidized surface.