Abrégé

The invention relates to a method for making the cover of an identity document provided with a radiofrequency identification device including an antenna and a chip (12) connected to the antenna, and including the following steps: making an antenna (12) including connection studs (13, 14) on a substrate (10); forming a cavity (20) between the connection studs (13, 14); depositing an adhesive dielectric material (25, 26) in the vicinity of the antenna connection studs; positioning an integrated circuit module (19) on the substrate so that the contact pads of the module are located opposite the connection studs of the antenna and so that the encapsulation of the module is carried out in the cavity (20); depositing, on the substrate surface including the antenna, at least one layer of a heat-adhesive film (40, 50, 60); depositing on the layer(s) (40 or 50 and 60) of heat-adhesive film a covering layer (70); and laminating the layer assembly.

Classes IPC  ?

• G06K 19/077 - Supports d'enregistrement avec des marques conductrices, des circuits imprimés ou des éléments de circuit à semi-conducteurs, p.ex. cartes d'identité ou cartes de crédit avec des puces à circuit intégré - Détails de structure, p.ex. montage de circuits dans le support

Abrégé

A contactless reading system, wherein a chip card is fixed on a planar support of an object such as a book (11) for identification by means of the data contained in the chip card, and a mobile reader (16) provided with an antenna in order to read the data of the card. The antenna of the reader (16) consists of a small-sized convolution disposed in a series with a large-sized convolution, which are concentric and which have the same winding direction. A maximum value is obtained for the component (H) of the electromagnetic field produced by the antenna parallel to the antenna at a given distance from the antenna. Maximum reception by the chip card of electromagnetic signals emitted by the antenna is obtained when the antenna is disposed in a perpendicular position in relation to the support of the card and at the given distance from the card.

Classes IPC  ?

• G06K 7/08 - Méthodes ou dispositions pour la lecture de supports d'enregistrement avec des moyens de perception des modifications d'un champ électrostatique ou magnétique, p.ex. par perception des modifications de la capacité entre des électrodes