The credit card includes an IC module having a data processing function, an insulation body for holding the IC module, and a plurality of terminals which are formed on the insulation body. The plurality of terminals are first and second contact pads to which a drive power and a data signal are supplied....http://www.google.fr/patents/US4621190?utm_source=gb-gplus-shareBrevet US4621190 - Card with an IC module
