Interference-optimised metal data carrier

• US 10,445,636 B2
• Filed: 06/29/2018
• Issued: 10/15/2019
• Est. Priority Date: 07/03/2017
• Status: Active Grant

• Current Assignee: Giesecke + Devrient Mobile Security GmBH (Giesecke & Devrient GmbH)
• Original Assignee: Giesecke + Devrient Mobile Security GmBH (Giesecke & Devrient GmbH)
• Inventors: Virostek, Eric, Tarantino, Thomas, Pisarev, Nick, Kluge, Stefan
• Primary Examiner(s): Labaze, Edwyn
• Application Number:
  US16/023,070
• Publication Number:
  US 20190005372A1
• Time in Patent Office: 473 Days
• Field of Search: 235492, 235380, 235487, 235375
• CPC Class Codes: G06K 19/07722 the record carrier being multilayered, e.g. laminated sheets flat articles in general, see B32B37/00
• CPC Class Codes: G06K 19/07771 the record carrier comprising means for minimising adverse effects on the data communication capability of the record carrier, e.g. minimising Eddy currents induced in a proximate metal or otherwise electromagnetically interfering object
• CPC Class Codes: G06K 19/07773 Antenna details antennas for wireless devices, e.g. RFID tags, in general H01Q1/22

Abstract

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.

Claims

1. A layer arrangement for manufacturing an interference-optimised, metal and card-shaped data carrier, comprising:

a metal layer for stabilizing a card body;

a shielding layer for reducing interference which results from interaction between the metal layer and the operation of an antenna; and

an antenna layer for receiving the antenna, wherein the shielding layer is arranged between the metal layer and the antenna layer, and

wherein the shielding layer completely covers the metal layer on a first side.

2. The layer arrangement according to claim 1, wherein the shielding layer and the antenna layer are configured as separate layers.

3. The layer arrangement according to claim 1, wherein the shielding layer is arranged flat with respect to the antenna layer.

4. The layer arrangement according to claim 1, wherein the shielding layer is in the form of a coating of the metal layer.

5. The layer arrangement according to claim 1, wherein the shielding layer is arranged directly on the metal layer.

6. The layer arrangement according to claim 1, wherein the shielding layer is in the form of a ferrite layer.

7. The layer arrangement according to claim 1, wherein further layers are introduced between the shielding layer and the antenna layer.

8. The layer arrangement according to claim 1, wherein a dual-interface module is provided which is electrically or electromagnetically coupled to the antenna.

9. The layer arrangement according to claim 8, wherein the dual-interface module is electrically coupled to the antenna via an anisotropic conductive layer.

10. The layer arrangement according to claim 1, wherein a protective layer is directly connected to the antenna layer in such a way that the protective layer forms an external layer of the layer arrangement.

11. The layer arrangement according to claim 1, wherein further electronic components are provided within the layer arrangement.

12. The layer laminate comprising a layer arrangement according to claim 1.

13. A device for providing a layer arrangement for manufacturing an interference-optimised, metal and card-shaped data carrier, comprising:

a first means set up to provide a metal layer for stabilising a card body;

a second means set up to provide a shielding layer for reducing interference which results from interaction between the metal layer and the operation of an antenna; and

a third means set up to provide an antenna layer for receiving the antenna, wherein the device is set up to arrange the shielding layer between the metal layer and the antenna layer, and

wherein the shielding layer completely covers the metal layer on a first side.

14. A method for providing a layer arrangement for manufacturing an interference-optimised, metal and card-shaped data carrier, comprising:

providing a metal layer for stabilising a card body;

providing a shielding layer for reducing interference which results from interaction between the metal layer and the operation of an antenna; and

providing an antenna layer for receiving the antenna, wherein the shielding layer is arranged between the metal layer and the antenna layer, and

wherein the shielding layer completely covers the metal layer on a first side.

15. A computer program product comprising control commands which carry out the method according to claim 14 when implemented on a computer.