Gemplus Card International

Pierre Merlin

Gerard Coiton

A chip card comprises a chip card body, a chip, and a connector. The connector has a metal contact which is electrically connected to the chip for communicating electrical signals. The metal contact includes a main layer which is free of etched information elements, and a coating layer which has information elements etched therein. In one improvement, the information elements are laser-etched. In another improvement, the information elements are also marked on the chip card body and are stored in the chip. The present invention advantageously helps protect against the fraudulent interchanging of the chip card micromodule, including the chip and the connector.

Chip card having information elements etched in a metal contact of a

Disclosed is a method for the marking of particulars on a connector of a card called an electronic chip card, said connector having metal contacts with a given thickness. Said method comprises a step consisting of the etching, with a laser beam, of said particulars in the thickness of the metal contacts of the connector. Application to the marking of chip cards, bank cards, telephone cards etc.

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Venelles, France

Pierre Merlin