Card comprising at least one electronic element

• US 5,399,847 A
• Filed: 05/12/1993
• Issued: 03/21/1995
• Est. Priority Date: 05/19/1992
• Status: Expired due to Term

• Current Assignee: Nagra ID SA (Kudelski SA)
• Original Assignee: Francois Droz
• Inventors: Droz, Francois
• Primary Examiner(s): Hajec, Donald
• Assistant Examiner(s): FILIPEK, JEFFER
• Application Number:
  US08/059,664
• Time in Patent Office: 678 Days
• Field of Search: 257/531, 257/679, 235/488, 235/487, 235/449, 235/492, 174/17 R, 174/17.05, 174/50.5, 174/50.54, 174/50.62, 174/50.64, 174/52.1, 174/52.2, 174/52.3, 174/52.4, 437/925, 437/978, 361/737
• US Class Current: 235/488
• CPC Class Codes: G06K 19/07749 the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
• CPC Class Codes: G06K 19/07779 the inductive antenna being a coil
• CPC Class Codes: G06K 19/07781 the coil being fabricated in a winding process
• CPC Class Codes: H01L 21/4857 Multilayer substrates multilayer metallisation on monolayer substrate H01L21/4846
• CPC Class Codes: H01L 2224/48091 Arched
• CPC Class Codes: H01L 23/49855 for flat-cards, e.g. credit cards cards per se G06K19/00
• CPC Class Codes: H01L 2924/00014 the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
• CPC Class Codes: H01L 2924/01068 Erbium [Er]
• CPC Class Codes: Y10T 156/108 Flash, trim or excess removal

Abstract

A card comprising an electronic element (2) and a coil (42) having its ends directly coupled to the electronic element are encased in a binding material (10). A positioning structure (46) for the electronic element is located in a layer (38) formed by the binding material.

Claims

1. A card comprising at least one electronic element and a layer formed by a binding material, said electronic element being embedded in and completely enclosed by said binding material, such card further comprising a positioning structure separate from, but located in the interior of, said layer formed by said binding material, said positioning structure being one piece with at least one dimension being substantially equivalent to at least one dimension of the card, such positioning structure having at least one principal opening defining an internal zone within which said electronic element is located for positioning said electronic element in the interior of said card.

2. A card as set forth in claim 1 further comprising a coil having two ends electrically connected to said electronic element, said electronic element with said coil forming an assembly encased by said binding material.

3. A card as set forth in claim 2 further comprising first and second outer layers, said layer formed by said binding material constituting an intermediate layer between said first and second outer layers, at least the major portion of the internal surface of each of said first and second outer layers being covered over by said binding material, such latter assuring the cohesion of such first and second outer layers with said intermediate layer.

4. A card as set forth in claim 1 further comprising first and second outer layers, said layer formed by said binding material constituting an intermediate layer between said first and second outer layers, at least the major portion of the internal surface of each of said first and second outer layers being covered over by said binding material, such latter assuring the cohesion of such first and second outer layers with said intermediate layer.

5. A card as set forth in claim 4 wherein each of said first and second outer layers is formed by a flat leaf of plastic material.

6. A card as set forth in claim 4 wherein said positioning structure is formed by a thin structure having an upper face and a lower face located facing respectively said first and second outer layers, said thin structure exhibiting on each of said upper and lowe faces a relief composed of several pyramids, the outer points of which are in contact with the outer layer located facing such relief.

7. A card as set forth in claim 1 wherein said positioning structure is formed by a plate in which said principal opening is provided, such plate having its upper face and its lower face entirely covered over by said binding material.

8. A card as set forth in claim 1 wherein said positioning structure is formed by a thin structure exhibiting on its upper face and on its lower face a relief composed of several pyramids.

9. A card as set forth in claim 1 wherein said positioning structure exhibits perforations.

10. A card as set forth in claim 1 wherein said positioning structure is formed by a cellular structure.

11. A card as set forth in claim 1 wherein said positioning structure is formed by expanded material.

12. A card as set forth in claim 1 wherein said positioning structure has the general form of a frame.

13. A card as set forth in claim 1 in which said binding material is formed by a solidified resin.

14. A card as set forth in claim 1 further comprising first and second outer layers, said layer formed by said binding material constituting an intermediate layer between said first and second outer layers, the internal surface of each of said first and second outer layers being completely covered over by said binding material, such latter assuring the cohesion of such first and second outer layers with said intermediate layer.