Infineon Technologies Ag

Circle Smart Card Ag

Andreas Müller-Hipper

Walter Kargl

Peter Stampka

Gerald Holweg

Frank Püschner

Harald Gundlach

Jens Riedel

Reinhard Proske

Michael Hochholzer

A contactless chip card and a method for producing a contactless chip card in which a plastic carrier having clearances is provided, on which an antenna coil is arranged on an upper side of the plastic carrier and a device having an integrated circuit is arranged on a rear side of the plastic carrier that is opposite from the upper side, an electrical connection is produced between the coil and the device, the plastic carrier is introduced into an injection mold and a card body is molded onto the rear side of the plastic carrier by the injection-molding process.

Chip card

A contactless data storage medium has at least two antennas, in each case for different transmission bands. This makes it possible to configure a data storage medium such that it can be operated with read/write units that operate in accordance with different standards. At least two of the antennas form a unit, so that a configuration such as this can be produced at very low cost.

Contactless data storage medium

Growing community of inventors

Wuppertal, Germany

Andreas Müller-Hipper