An universal connector employing a plurality of double female contacts installed with a certain clearance in receptacles of a body which may be suspended in a coupling position with a plurality of male contacts arranged on the top face of an EWS probe card and with a plurality of male contacts arranged...http://www.google.co.uk/patents/US5187431?utm_source=gb-gplus-sharePatent US5187431 - Universal multicontact connection between an EWS probe card and a test card of a "test-on-wafer" station
