Giesecke+devrient Mobile Security Gmbh

Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Giesecke & Devrient Gmbh

Giesecke+devrient Epayments Gmbh

Stefan Kluge

Peter Woias

Thomas Tarantino

Martin Richter

Reinhard Linnemann

Klaus Finkenzeller

Hans Graf

Christoph Schiller

Eric Virostek

Manuela Schröpf

Sönke Schröder

Michael Stegmüller

Nick Pisarev

Manuela SCHRÖPF

Michael STEGMÜLLER

Electronic components of a chip card are connected to one another in an electrically conducting manner and include two contact terminals of one of the two electronic components being connected to one another in an electrically conducting manner either directly or by way of associated contact pads in the card body.

Data-bearing card and semi-finished product and wiring layout for same, and method for producing same

A portable data carrier comprises a first electrical oscillating circuit, which includes a first antenna coil and a first electrical load, and at least one second electrical oscillating circuit, which comprises a second antenna coil and a second electrical load. The first antenna coil and the second antenna coil are geometrically arranged relative to each other such that there is no mutual inductance between the first antenna coil and the second antenna coil.

Data carrier having two oscillating circuits

A layer arrangement is provided for manufacturing an interference-optimized, metal and card-shaped data carrier and to a layer laminate comprising the layer arrangement.

Interference-optimised metal data carrier

A portable data carrier has a contactless interface which serves for transmitting energy and data between the data carrier and an external terminal. A first chip serves for processing the data and is supplied with energy and data by the contactless interface. The data carrier comprises a body which is at least partly light-transmissive at least on one area, wherein the data carrier has a light source which extends areally at least over a part of the area of the data carrier and emits light uniformly or non-uniformly over the areal extension.

Data storage medium with two-dimensional light source

A method is for limiting a voltage in the reverse direction of a light emitting diode is disposed on a secure element. The light emitting diode is electrically connected in parallel to a coil and to operating voltage connectors of an integrated circuit. The coil serves for supplying energy to the integrated circuit and to the light emitting diode because an electrical voltage is induced in the coil with an electromagnetic field produced by an external terminal, and for the contactless data transmission between the integrated circuit and the external terminal. The integrated circuit serves for processing data transmitted between the terminal and the integrated circuit. A shunt regulator regulates the operating voltage required for the operation of the integrated circuit to a value within an allowable range and limits the operating voltage, so a maximally permissible voltage in the reverse direction of the light emitting diode is not exceeded.

Secure element having a light emitting diode

A card body for a data carrier comprises at least a first and a second foil. The first foil comprises a first light-conducting areal region of a light-conducting material and a first opaque areal region of an opaque material adjoining the first light-conducting areal region. The second foil comprises a second light-conducting areal region of a light-conducting material adjacent to a second opaque areal region. The first and second foils are arranged lying one above the other areally. The first and second foils are aligned such that the first and second light-conducting areal regions form an overlap region. The card body comprises a first cover foil configured to be opaque and arranged above the first foil. The transition from the first and second light-conducting areal regions to the first and second opaque areal regions has light-scattering particles.

Card body for a data carrier and inlay for a partial card body

The invention relates to a card-shaped data carrier () comprising a card body () provided with a graphical element () displayed thereon. The card body () is made of a plastic material for converting irradiated light into secondary light and for retransmitting the secondary light within the plastic material to the graphical element () or to a portion of the graphical element (). The inventive card-shaped data carrier () is characterized in that the card body () is provided with a light source () for irradiating light into a shaped body () formed by the plastic material.

Card-shaped data carrier

A module for insertion into a data carrier body to form a data carrier, the module having a contact interface with a contact area, at least one integrated circuit and a display device with a display area which are interconnected. Method for producing the module, the data carrier body and the data carrier. The contact interface and the display device of the module are disposable in the data carrier body such that the contact area of the contact interface and the display area of the display device point in opposite directions. The data carrier body thus possesses a through opening into which the module is insertable as described.

Display module and data storage medium with an inserted display module

A card-shaped data carrier includes a card body provided with a graphical element displayed thereon. The card body is provided with a plastic material for converting irradiated light into secondary light and for retransmitting the secondary light within the plastic material to the graphical element or to a portion of the graphical element. The card-shaped data carrier has a shaped body which is made of the plastic material for displaying the graphical element and is at least partially arranged in at least one cavity of the card body and/or includes a laterally extended area inside which the shaped body exhibits optical properties different from the properties outside the area.

A card-shaped electronic data carrier, in particular chip card, has a card body () with a recess () located on a top side of the card (), which accommodates a display (). In a base surface () of the recess a reflection layer () is disposed. The recess () is formed in a multi-step fashion. The contact surfaces () of the display () are directed towards the base surface () of the recess () and rest against countercontact surfaces () on a step of the recess ().

Portable data carrier with a display device having a reflection layer as a separate component and applied separately from the display device

A method of producing a pump body having an inlet opening provided with an inlet valve ( ) and an outlet opening provided with an outlet valve ( ), said method comprising as a first step the step of structuring a respective first main surface of a first and of a second semiconductor disc ( ) for defining a valve flap structure ( ) of the inlet valve and a valve seat structure ( ) of the outlet valve in the first disc and a valve flap structure of the outlet valve and a valve seat structure of the inlet valve in the second disc. Following this, a valve flap well structure ( ) and a valve opening well structure ( ) are formed in a predetermined relationship with the valve flap structures and the valve seat structures in a respective second main surface of the first and of the second semiconductor disc. The first main surfaces of said first and second semiconductor discs are connected in such a way that the respective valve flap structure is arranged in a predetermined relationship with a respective valve seat structure. Finally, the respective second main surface of said first and of said second semiconductor disc is etched at least in the area of the valve flap well structure and of the valve opening well structure so as to expose the valve flaps and open the valve seats.

Method for producing a micromembrane pump body

A micromembrane pump comprises a pump membrane which is adapted to be moved to a first and a second position with the aid of a drive means and a pump body connected to the pump membrane so as to define a pump chamber between these two components, the pump body being defined by two semiconductor plates having each formed therein a valve seat and a valve flap which are formed integrally with the respective semiconductor plate, the two semiconductor plates being connected in such a way that a respective passive non-return valve is defined by a valve seat of one semiconductor plate and by a valve flap of the other semiconductor plate, one of the passive non-return valves being arranged in an inlet opening penetrating both semiconductor plates, whereas the other of the non-return valves is arranged in an outlet opening penetrating both semiconductor plates. The pump membrane increases the volume of the pump chamber by a stroke volume when moving from the first to the second position and reduces the volume of the pump chamber by this stroke volume when moving from the second to the first position. According to the present invention, the ratio &egr; of the stroke volume to the volume of the pump chamber satisfies the following equation, when the pump membrane is at the first position:

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Munich, Germany

Stefan Kluge