Method for making a smart card antenna on a thermoplastic...

G - Physics – 06 – K

Patent

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G06K 19/077 (2006.01)

Patent

CA 2520441

The invention concerns a method for making a hybrid contact/non-contact or non-contact smart card comprising a support (10, 11) whereon is produced the antenna, two card bodies (32, 42, 34, 44) on either side of the support, each of the card bodies consisting of at least one thermoplastic layer, and one chip (30) or module connected to the antenna. Said method comprises the following steps: depositing a layer of a material consisting of a major amount of resin on a predetermined zone (12, 13) of the antenna support; making the antenna which consists in screen-printing turns (14, 15) and two connection pads (16, 18, 17, 19) of conductive polymer ink on the zone previously produced on the support and subjecting the support to a heat treatment to cure the ink.

Procédé de fabrication d'antenne de carte a puce hybride contact-sans contact ou sans contact qui comprend un support 10, 11 sur lequel est réalisée l'antenne, deux corps de carte 32, 42, 34, 44 de chaque côté du support, chacun des corps de carte étant constitué d'au moins une couche de thermoplastique, et d'une puce 30 ou d'un module connecté à l'antenne. Ce procédé comporte les étapes suivantes - une étape de dépôt d'une couche d'un matériau composé majoritairement de résine sur une zone prédéterminée 12, 13 du support d'antenne, - une étape de fabrication de l'antenne consistant à sérigraphier des spires 14, 15 et deux plots 16, 18, 17, 19 de connexion d'encre polymère conductrice sur la zone réalisée préalablement sur le support et à faire subir un traitement thermique au support afin de cuire l'encre.

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