Abstract:
The invention thus concerns a method for manufacturing a radiofrequency identification device which includes the following steps: a manufacturing process for an antenna consisting in screen-printing turns of an electrically conductive polymer ink onto a transfer paper sheet, and then subjecting said support to heat treatment in order to bake and polymerize said conductive ink, connection of a chip 14, provided with contacts, to the antenna 12, lamination consisting in making the transfer paper sheet integral with a layer of plastic material 16 which constitutes the support for the antenna, by hot press molding, in such a way that the screen-printed antenna and the chip are both embedded within the layer of plastic material, and removal of the transfer paper sheet.
Abstract:
A method for connecting a chip (10) to a contactless smart card antenna having deformable contacts (18), the antenna being printed using conductive ink on an antenna support (16) made of deformable material. This method includes the steps of positioning the chip (10) provided with contacts (12) made of a non-deformable material, on the antenna support so that the contacts (12) are facing the contacts (18) of the antenna, and exerting a force on the chip (10) so that the contacts (12) deform the antenna support (16) and the contacts (18) of the antenna as a result of the pressure, the support (16) and the contacts (18) maintaining their deformation after the pressure is released, thus enabling a significant contact surface to be obtained between the contacts (12) of the chip (10) and the contacts (18) of the antenna.
Abstract:
The invention concerns an imprintable, flexible, synthetic support bearing at least one authentication or security mark.This support comprises:a substrate of synthetic materialat least one mark on at least one face of the support and consisting of at least one layer of a composition altering the substrate opacity,at least one layer of an imprintable pigment composition deposited on the face bearing the mark and optionally also on the substrate face without the mark, the mark being barely or not at all visible in reflected light and perfectly visible in transmitted light.Application to the security of synthetic paper.
Abstract:
The invention concerns a method for manufacturing a radio frequency identification device (RFID), the device featuring an antenna and a chip (12) connected to the antenna, the method including the following steps: printing an antenna (12) having contacts (17 and 19) on a support (20) made of paper or synthetic paper, placing adhesive dielectric material between the contacts of the antenna, positioning an integrated circuit module (10) on the support, the module featuring groups of contacts (17, 18) and the chip (12) connected to groups of contacts inside an encapsulation (14) of the module, so that the groups of contacts of the module are opposite the contacts of the antenna, placing a thermoplastic layer (22) and a paper or synthetic paper layer (24) on the support, the two layers (22 and 24) being provided with a recess (21, 23) at the location of encapsulation (14) of the module (10), laminating together the three layers, the antenna support layer (20), the thermoplastic layer (22) and the paper or synthetic paper layer (24) in order to electrically connect said module to said antenna and agglomerate the layers (20, 22 and 24) together.
Abstract:
A method for manufacturing an identity booklet cover provided with a radio frequency identification device having an antenna and a chip (12) connected to the antenna, the method including the following steps: producing an antenna (12) having contacts (13 and 14) on a support (10), creating a recess (20) between the contacts (13 and 14), placing adhesive dielectric material (25, 26) near the contacts of the antenna, positioning an integrated circuit module (19) on the support so that the groups of contacts of the module are opposite the contacts of the antenna and the encapsulation of the module is in the recess (20), placing on the face of the support featuring the antenna at least one layer of thermo-adhesive film (40, 50, 60), placing a cover layer (70) on the layer (or) layer(s) (40 or 50 and 60) of thermo-adhesive film, laminating all the layers.
Abstract:
A multi-step method for producing contactless tickets or cards, the tickets or cards including a chip (24) which is connected to an antenna (10) on a paper carrier. The method includes: printing the antennae in series on the paper carrier strip using a silkscreen ink; fixing a chip to each ticket by connecting bond pads of the chip to the antennas' bond pads (14, 16); and covering the paper strip, including the silkscreen-printed antenna and the corresponding chip, with an adhesive paper strip. After each step, the paper carrier strip is wound up before the next step is begun. Each of the silkscreen-printed antennae is coated with a protective layer (12) to prevent silkscreen ink from being transferred to the back of the paper carrier strip during the successive winding-up following each step.
Abstract:
The invention concerns a radio frequency identification device (RFID) featuring an antenna (12) screen-printed on a fibrous support and a chip (10) connected to the connection terminals (17 and 19) of the antenna. According to the main characteristic of the invention, a thermoplastic layer (22) and a layer of paper (24) are laminated on the antenna support (20) so that the antenna and the chip are trapped in the thermoplastic and so that the device is resistant to water and humid environments.
Abstract:
The invention concerns a manufacturing process for a contactless smart card (or ticket) which includes the following steps: a manufacturing process for an antenna consisting in screen-printing turns of an electrically conductive polymer ink onto a transfer paper sheet, and then subjecting said support to heat treatment in order to bake and polymerize said conductive ink, connection of a chip 14, provided with contacts, to the antenna 12, lamination consisting in making the transfer paper sheet integral with a layer of plastic material 16 which constitutes the support for the antenna, by hot press molding, in such a way that the screen-printed antenna and the chip are both embedded within the layer of plastic material, removal of the transfer paper sheet, and lamination of the card body onto the antenna support by welding at least one layer of plastic material (18, 20) by hot press molding on each side of the support.
Abstract:
A smart card including an antenna (18) on a support made of paper type fibrous material (12), two card bodies on each side of the support each consisting of at least one layer of plastic material having a low flow temperature, and an electronic module (26) featuring a chip connected to the antenna, the assembly made up of the antenna support and the two card bodies being welded together by hot-lamination under pressure. The support made of fibrous material includes at least one opening (14, 16) such that the plastic layers (23, 25) of the card body come into near perfect contact during the lamination operation, the opening forming a weld between the card bodies thus reinforcing the connection of the module.
Abstract:
A method for connecting an electronic chip (10) to contacts (47and 48) of an electric circuit, the chip having two conductive plates (31and 32) located on the last layer of the chip and at least one electromagnetic shielding layer, at least one of the plates (31or 32) being entirely covered with an electrical insulating layer (34). The method includes placing an adhesive dielectric material (40) on the circuit between the contacts (47, 48), to fix the electronic chip (10) relative to the circuit, positioning electronic chip (10) on the circuit so that conductive plates (31et 32) are opposite the contacts (47and 48), so as to create between the chip and the electric circuit at least one capacitive link made up of the conductive plate (31or 32), the electrically insulating layer and the contact (47or 48).