Disclosed is a probe card assembly which includes an interface card having a plurality of contact pads on at least one surface thereof, a probe card having a plurality of contact pads on at least one surface thereof, and a carousel interposed between the interface card and the probe card having a plurality...http://www.google.de/patents/US5546012?utm_source=gb-gplus-sharePatent US5546012 - Probe card assembly having a ceramic probe card