Abstract: The assembly (22) involved in the fabrication of electronic cards comprises a plate (14) exhibiting a plurality of apertures (16) in which are respectively housed a plurality of electronic modules (2). These electronic modules are assembled to the plate 14 by fixing means, in particular by fixing bridges leaving a slot (26) over the major part of the surround of the electronic module. For example the fixing means are formed by projecting parts (18) at the periphery of the apertures (16), these projecting parts exhibiting a smaller thickness than the thickness of the plate (14) and serving as supports for the electronic modules, in particular for a substrate (12) of these modules. Fixing is performed for example by welding or adhesive bonding. The invention also relates to an intermediate product formed by such an assembly and a filing material that fills at least the major part of the remaining space in the apertures (16).

Abstract: Method of manufacturing at least one card each including an electronic module (2), this method providing a frame (14) or a plate (18) having at least one aperture (16) provided for receiving said electronic module.

Abstract: The aim of this invention is to provide a thin flexible card or electronic label, wherein are mounted electronic components with a reliable electric connection between their contacts and card conductors. The card or electronic label is produced by assembling at least one thin, flexible substrate (7), a conductive layer (4), an adhesive layer (1), and at least one electronic component (11). The substrate (7) includes at least one window (8) wherein is housed the electronic component (11), the adhesive layer (1) maintains the conductive layer (8) on the substrate, the conductive layer (4) extends partially into the window's surface (8) so as to form at least one electric contact (4?) whereon the electronic component (11) is connected. The substrate (7) has a thickness preferably selected on the basis of the greatest height of the electronic component (11) to be mounted.

Abstract: The aim of this invention is to propose a portable information carrier equipped with a transponder capable of being activated and deactivated during the use of said information carrier without having recourse to a specific device for actuation.

Abstract: The aim of this invention is to obtain a very cheap electronic circuit used for example in a card or a label while maintaining high reliability. It particularly concerns the connection of one or several electronic components on the conductive tracks by means of conductive bridges that traverse the substrate. The electronic circuit according to the invention includes at least one electronic component (6), a substrate (5), on a first face of this substrate an adhesive layer and a conductive layer including a plurality of tracks (4) are applied. The electronic component (6) comprises at least two connection areas (7). One of these connection areas (7) is electrically linked to the conductive layer by a conductive bridge formed by a conductive segment (1) delimited in the conductive layer only. Said segment (1), free from any adhesive substance, traverses the substrate (5) through a passage (2, 3) and links the connection area (7).

Abstract: Electronic labels consist of an electronic chip (4) and an antenna (3) assembled on a flexible support (2). The electronic chip (4) needs a rigid zone in order to not be damaged. This is why it is generally covered with a resin that makes this rigid region bigger. In order to reduce this zone the resin that covers the chip is suppressed and replaced with a protection (5) ensured by a rigid element added to the flexible support (2).

Abstract: The invention concerns a method for making smart cards by rolling. A first synthetic sheet (1) is first smoothed by hot pressing against a first smoothing plate (4). Likewise a second synthetic sheet (2) is smoothed against a second smoothing plate (5). Without being unstuck from their smoothing plates, these two sheets are rolled with other layers (3, 6, 7), said synthetic sheets (1, 2) serving as external layers. One of the smoothing plates may comprise a three-dimensional pattern to be relief printed on the synthetic sheet. The rolling is carried out by cold pressing the different layers (1, 6, 3, 7, 2) which the laminated card comprises between the two smoothing plates (4, 5). After being rolled, different cards with adapted dimensions can be cut out from the laminated sheets. The invention is advantageous in that the same plates (4, 5) are used for the hot pressing and the cold rolling.

Abstract: A card (1) including a lower layer (2) and a layer (4) of solidified binder (6) in which various elements are incorporated, in particular a coil (12) electrically coupled to an electronic unit (8). The coil (12) exhibits a lower planar surface (30), the inner face (20) of the lower layer (2) exhibiting a relief (18) defining sunken valleys traversing said inner face (20).

Abstract: Method of producing a printed circuit starting from a dielectric film covered by one or more superficial metallic conducting layer(s), comprising a step of demarcation of different conducting paths by mechanical machining of incisions in the conducting layer. The machining is carried out by means of a sharp-edged cutting tool allowing incisions to be cut separating said conducting paths, without removal of conducting material or depthwise indentation. For example, a stamping die or a cutting table controlling a blade can be used to cut the incisions. The method is suitable for multi-layered circuits, and is particularly adapted to flexible printed circuits, to connectors, etc. and to inductance coils used, for example, in chip cards.

Abstract: A method of producing a transponder (20) comprising the following steps: demarcating the various turns (8) of a coil in a sheet (1), including a dielectric substrate covered by at least one conducting layer (2), by stamping said conducting layer with a stamping die (5) having sharp-edged surfaces (6) for contact with the superficial conducting layer (2; 2"'), connecting at least one electronic component (25) to the turns (8), and mounting at least one protective sheet (22; 27) covering the coil and the electronic component (25). To facilitate the stamping and to obtain clean incisions, the conducting layer is covered, before stamping, with a synthetic film. To prevent short circuits over the incisions, the incisions are preferably filled in with an adhesive, varnish or lacquer.