Idemia France

Oberthur Technologies

Elodie Gragnic

Olivier Bosquet

Disclosed is an antenna support for incorporating in an electronic document. The support can include a first substrate made of a plastics material that is defined by first and second opposite faces, which define between them a thickness of the substrate. The antenna can include one or more turn that extends between two ends, and the antenna can be formed by a wire that is inlaid in the thickness of the first substrate from the first face, such that each of the two ends presents a zigzag shape formed by at least two rectilinear portions and by two bends. The bends can be inlaid more deeply than the rectilinear portions in the thickness of the first substrate from the first face.

Antenna carrier intended for being built into an electronic document

The fabrication of an electronic document includes the following steps: &#x2014;obtaining of a flat body in which is made a cavity of globally rectangular shape including a deep portion surrounded by a countersink and which contains an electronic component having connection terminals situated on this countersink while having the shape of meandersA,B, &#x2014;obtaining of a module including a support furnished on a so-called external face with a plurality of external contact zones and on a so-called internal face with a printed circuit including connection padsA,B of hefty form while being connected to certain at least of the external contact zones, the support being furthermore furnished, on this internal face, with a microcircuit connected to this printed circuit, this module being encased in the cavity by an anisotropic conducting adhesive whose overlap coefficient lies between 5 and 8%.

Electronic document such as a chip card with reduced metallization

Disclosed is an electronic document, such as an integrated circuit card, that includes a body having a cavity that opens into one of the faces of the body and is defined by walls. The body also includes: an antenna having at least one turn extending between two ends that terminate in a wall of the cavity, a module including a microprocessor and at least two connection terminals dedicated to the antenna and electronically connected by electrical connections firstly to the microprocessor and secondly to the ends of the antenna. The ends of the antenna are arranged in zigzag shapes and each of them is made up of at least two rectilinear portions that are connected together by a bend and in which the rectilinear portion terminating in the cavity is at an angle of inclination relative to the wall at which it terminates.

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Colombes, France

Elodie Gragnic