The swelling in the surface of an IC card due to occluded pneumatic foams is eliminated by providing a novel IC card, which is comprised of a substrate mounting an IC chip and an antenna circuit, and wherein the substrate is sandwiched at least between a pair of films, and the pair of the films are provided with an uneven pattern made of small grooves formed at least on one surface thereof opposing the substrate.

On élimine le gonflement dans la surface d'une carte d'IC due à pneumatique occlu écume en fournissant une carte d'IC de roman, qui est composée d'un substrat montant un morceau d'IC et un circuit d'antenne, et où le substrat est serré au moins entre une paire de films, et la paire des films sont équipées de modèle inégal fait de petites cannelures formées au moins sur une surface s'opposant en au substrat.

 
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