Flonic

Schlumberger Industries

Alain Rebjock

Rene Rose

Jean-Louis Hayart

Jean-Paul Mollet

The invention relates to implanting an electronic module (i.e. an integrated circuit plus electrical contact tabs) in the body of an electronic memory card. The integrated circuit (38) is directly fixed to a lead frame (10) defining electrical connections and electrical contact tabs. The terminals (42) of the integrated circuit (38) are connected by wires (44) to the lead frame. The assembly is placed in a cavity provided in the card body. Such cards constitute credit cards, for example.

Method of manufacturing a card having electronic memory and a card

In oder to improve fixing between an electronic module (140) and the body (120) of a credit card made of plastic material, a housing (122, 134) is provided in the card body with bumps (130, 132) projecting into the housing. The electronic module (140) is pressed against the bumps (130, 132) while being raised to the softening temperature of the material from which the bumps are made. The module is pressed until its contact tabs (148) are level with the face (126) of the body. Fixing is completed by causing a glue to penetrate by capilarity between the bottom (124), the insulating substrate (142) of the electronic module, and the bumps (130, 132). The invention is particularly applicable to prepaid credit cards.

Method of manufacturing cards having an electronic memory and cards

A method of manufacturing a memory card comprises taking an electronic module, which includes an insulating substrate and an integrated circuit, and locally raising the temperature of the plastic material of the card to its softening point. The module is then applied, with pressure, on one side of the card at its softened location to embed the module in the plastic material.

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Cergy, France

Alain Rebjock