Card-shaped data carrier with a back-injected layer, and method for producing a card-shaped data carrier

Patent metadata

Field	Value
Publication number	US-12450463-B2
Application number	US-202218713269-A
Country	US
Kind code	B2
Filing date	Nov 29, 2022
Priority date	Dec 2, 2021
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

A card-shaped data carrier includes a card body with at least one arrangement region for receiving a chip module arranged in the arrangement region of the card body. The chip module has at least one chip, a contact structure and at least one antenna. The card body is formed from at least two layers, including a first layer configured as a metal layer with at least one slit extending from a circumferential surface of the metal layer into the region of the arrangement region for the chip module and through the entire thickness of the metal layer; a second layer formed as a back injection molded layer including a back injection molding material. The back injection molded layer is arranged on the metal layer so the slit of the metal layer is at least partially filled with the back injection molding material.

First claim

The invention claimed is:

1. A card-shaped data carrier, comprising a card body with at least one arrangement region for receiving a chip module,
wherein the chip module is arranged in the arrangement region of the card body,
wherein the chip module comprises at least one chip, a contact structure and at least one antenna,
wherein the card body is formed from at least two layers,
wherein a first layer is configured as a metal layer with at least one slit, which extends from a circumferential surface of the metal layer into the region of the arrangement region for the chip module and which extends through the entire thickness of the metal layer,
wherein a second layer is formed by means of a back injection molding method as a back injection molded layer, which comprises a back injection molding material,
wherein the back injection molded layer is arranged on the metal layer in such a way that the slit of the metal layer is at least partially filled with the back injection molding material.

2. The card-shaped data carrier according to claim 1 , wherein the back injection molded layer extends at least partially along the metal layer.

3. The card-shaped data carrier according to claim 1 , wherein the arrangement region for receiving the chip module is formed by a recess in the card body, in which the chip module is received.

4. The card-shaped data carrier according to claim 1 , wherein the back injection molded layer has a molded cavity for receiving electronics of the chip module, the cavity being arranged below the arrangement region for receiving the chip module.

5. The card-shaped data carrier according to claim 1 , wherein the metal layer has at least one cutout, the at least one cutout of the metal layer being at least partially filled with the back injection molding material.

6. The card-shaped data carrier according to claim 5 , wherein the cutout is arranged in the region of the slit.

7. The card-shaped data carrier according to claim 5 , wherein the cutout is configured circularly, or in that a plurality of cutouts are provided so that an optical logo can be represented.

8. The card-shaped data carrier according to claim 1 , wherein the metal layer forms an outer-lying layer of the card-shaped data carrier, or in that a third outer-lying layer is provided, which covers the metal layer.

9. The card-shaped data carrier according to claim 8 , wherein the third outer-lying layer is formed by means of a back injection molding method as a second back injection molded layer, which comprises a back injection molding material, the second back injection molded layer being arranged on the metal layer in such a way that the slit of the metal layer is at least partially filled with the back injection molding material.

10. The card-shaped data carrier according to claim 8 , wherein an adhesive layer is arranged between the third outer-lying layer and the metal layer.

11. A method for producing a card-shaped data carrier according to claim 1 ,
wherein the method comprises the following steps:
providing the first layer as a metal layer with a slit,
arranging the chip module in the arrangement region;
back injection molding the metal layer in order to form the second layer as a back injection molded layer, the back injection molded layer being arranged on the metal layer in such a way that the slit of the metal layer is at least partially filled with the back injection molding material.

12. The card-shaped data carrier according to claim 1 , wherein no adhesive is provided between the first layer and the second layer.

13. The card-shaped data carrier according to claim 1 , wherein no adhesive is provided on the first layer between the first layer and the second layer.

14. The card-shaped data carrier according to claim 1 , wherein the back injection molding material includes a plastic material.

15. The card-shaped data carrier according to claim 1 , wherein the card body is formed from a total of two layers.

16. The card-shaped data carrier according to claim 1 , wherein the metal layer has a plurality of cutouts, and wherein the plurality of cutouts are at least partially filled with the back injection molding material.

17. The card-shaped data carrier according to claim 1 , wherein the metal layer has a plurality of cutouts arranged along the slit, and wherein the plurality of cutouts are at least partially filled with the back injection molding material.

18. The card-shaped data carrier according to claim 1 , wherein metal layer is arranged as an outer layer of the card body such that the card-shaped data carrier is a metal-faced card.

19. A card-shaped data carrier, comprising a card body with at least one arrangement region for receiving a chip module,
wherein the chip module is arranged in the arrangement region of the card body,
wherein the chip module comprises at least one chip, a contact structure and at least one antenna,
wherein the card body is formed from at least two layers,
wherein a first layer is configured as a metal layer with at least one slit, which extends from a circumferential surface of the metal layer into the region of the arrangement region for the chip module and which extends through the entire thickness of the metal layer,
wherein a second layer is formed by means of a back injection molding method as a back injection molded layer, which comprises a back injection molding material,
wherein the back injection molded layer is arranged on the metal layer in such a way that the slit of the metal layer is at least partially filled with the back injection molding material, and
wherein a functional layer on which at least one component of the chip module is arranged, is arranged between the metal layer and the back injection molded layer, the functional layer having a slit which corresponds to the slit of the metal layer and extends from a circumferential surface of the functional layer into the region of the arrangement region for the chip module, and which extends through the entire thickness of the functional layer.

20. A method for producing a card-shaped data carrier that includes a card body with at least one arrangement region for receiving a chip module, the method comprises the following steps:
providing a first layer of the card body, the first layer including a metal layer with at least one slit, wherein the slit extends from a circumferential surface of the metal layer into a region of the arrangement region for the chip module and which extends through the entire thickness of the metal layer;
arranging a chip module in the arrangement region; and
back injection molding the metal layer thereby forming a second layer of the card body as a back injection molded layer, the back injection molded layer being arranged on the metal layer in such a way that the slit of the metal layer is at least partially filled with the back injection molding material.

Assignees

• Giesecke & Devrient Epayments Gmbh

Inventors

• Minks Andreas
• Tarantino Thomas

Classifications

• G06K19/07722 Primary

  the record carrier being multilayered, e.g. laminated sheets (flat articles in general, see B32B37/00) · CPC title