Contact smart cards having a document core, contactless smart cards including multi-layered structure, pet-based identification document, and methods of making same

• US 6,843,422 B2
• Filed: 12/23/2002
• Issued: 01/18/2005
• Est. Priority Date: 12/24/2001
• Status: Active Grant

• Current Assignee: L-1 Secure Credentialing, LLC (Advent International Corporation)
• Original Assignee: Digimarc Corporation
• Inventors: Regan, Thomas, Jones, Robert, Bi, Daoshen, Anderson, Joseph, Mailloux, Dennis
• Primary Examiner(s): TREMBLAY, MARK STEPHEN
• Application Number:
  US10/329,318
• Publication Number:
  US 20030178495A1
• Time in Patent Office: 757 Days
• Field of Search: 235/380, 235/492, 235/487
• US Class Current: 235/492
• CPC Class Codes: B23C 2210/0442 positive
• CPC Class Codes: B23C 5/10 Shank-type cutters, i.e. with an integral shaft
• CPC Class Codes: B32B 2305/342 Chips
• CPC Class Codes: B32B 2367/00 Polyesters, e.g. PET, i.e. polyethylene terephthalate
• CPC Class Codes: B32B 2425/00 Cards, e.g. identity cards, credit cards
• CPC Class Codes: B32B 2519/02 RFID tags
• CPC Class Codes: G06K 19/077 Constructional details, e.g. mounting of circuits in the carrier
• 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 19/07728 the record carrier comprising means for protection against impact or bending, e.g. protective shells or stress-absorbing layers around the integrated circuit
• CPC Class Codes: G06K 19/07745 Mounting details of integrated circuit chips
• 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: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: Y10T 407/19 Rotary cutting tool
• CPC Class Codes: Y10T 409/303752 Process

Abstract

The present invention relates to identification documents and smart cards. In one implementation, we provide a smart identification document including a document core. The document core is printed and laminated. The laminated core is milled to create a cavity. An integrated circuitry module is provided in the cavity. In one implementation, the cavity includes an upper cavity and a lower cavity. A laminate layer houses the upper cavity while the lower cavity extends into the document core. The upper cavity'"'"'s aperture exceeds the aperture of the lower cavity resulting in a ledge in the laminate layer. A portion of the module may rest on the ledge, while another portion of the module may extend into the lower cavity. In another implementation, we provide a contactless smart card including a multi-layered structure. The structure includes a carrier layer including the smart card electronics. The carrier can be permeable (like a mesh or scrim) so that additional layers may be laminated into or through the carrier layer. A multi-layer structure provides a enhanced durability and helps protect the smart card electronics. In still another implementation, we provide a PET-based identification document. The PET-based document includes favorable durability and earth-friendly characteristics.

Claims

1. A smart identification document comprising:

a core layer including a first surface and a second surface, the core layer comprising a first material;

a first layer of a substantially transparent polymer adjacently arranged on and fixedly attached to the first surface of the core layer to form a document structure having first and second surfaces, where the substantially transparent polymer of the first layer comprises a material that is substantially different than the first material

an aperture formed into the document structure, the aperture being formed after the first layer and the core layer have been fixedly attached together, the aperture comprising;

a first section disposed in the first polymer layer, the first section including a ledge in the first polymer layer, and

a second section disposed in at least the core layer; and

a module including electronic circuitry, wherein at least a first portion of the module is adjacently arranged with the ledge, and at least a second portion of the module extend into at least some of the second section of the aperture.

2. The identification document of claim 1 wherein at least one of the first surface of the core layer, first surface of the document structure, second surface of the document structure, and the second surface of the core layer bears at least one printed indicia thereon.

3. The identification document of claim 1 further comprising an adhesive layer disposed between the ledge and the first portion of the smart card module.

4. The identification document of claim 1, wherein the second portion of the module that extends into the second section of the aperture floats in the second section.

5. The identification document of claim 1, wherein the second section comprises a floor, and wherein the second portion of the module that extends into the second section does not contact the floor.

6. The identification document of claim 1, wherein the document structure further comprises a second layer of a substantially transparent polymer adjacently arranged between and fixedly attached to the first layer of substantially transparent polymer and the first surface of the core and wherein the aperture further comprises a third section diseased in the second layer.

7. The identification document of claim 6, wherein the second layer of substantially transparent polymer comprises an adhesive.

8. The identification document of claim 7, wherein at least one of the first surface of the core layer and the adhesive comprises indicia thereon.

9. The identification document of claim 8, wherein the indicia included a photographic representation of a human subject.

10. The identification document of claim 1, wherein the core layer comprises at least one of a synthetic material, a polymer, a synthetic paper, a polyolefin, and a silica-filled polyolefin.

11. The identification document of claim 10, wherein the first layer of the substantially transparent polymer that is adjacently arranged on the first surface of the core layer comprises at least one of polyester, polystyrene, cellulose ester, polyolefin, polysulfone, polyamide, amorphous polyester, biaxially oriented polyester and polycarbonate.

12. The identification document of claim 1, wherein the core layer comprises TESLIN.

13. The identification document of claim 1, wherein the first layer of the substantially transparent polymer that is adjacently arranged on the first surface of the core layer includes a front surface and a back surface, the front surface being the surface that is adjacently arranged on the first surface of the core layer, and wherein the smart card module comprises a contact pad which is approximately flush with the back surface.

14. The identification document of claim 1, wherein the aperture is formed so that at least a portion of the module substantially floats within at least one of the first and second sections of the aperture.

15. The method of claim 14 wherein the laminate layer document core sandwich structure further comprises an adhesive layer disposed between the laminate layer and the document core and wherein the lower cavity extends through the laminate layer and the adhesive layer into the document core.

16. The identification document of claim 1 wherein the module comprises a contact-type smart card module.

17. A method of milling a cavity in an identification document to receive a smart card module, the identification document comprising at least a laminate layer-document core sandwich structure, wherein the laminate layer comprises a substantially different material than does the document core, said method comprising:

providing a first cut in the laminate layer to create a rough upper cavity, the rough upper cavity including a first aperture;

providing second cut to create a lower cavity, the lower cavity extending through the laminate layer into the document core, the lower cavity and the rough upper cavity being approximately centered on a common axis, wherein the aperture of the lower cavity is relatively smaller than the aperture of the rough upper cavity resulting in a shelf in the laminate layer; and

providing a third cut around the rough upper cavity to create a finished upper cavity, the finished upper cavity having an aperture, which is larger than the aperture of the rough upper cavity, the finished upper cavity being approximately centered on the common axis.

18. The method of claim 17, wherein the core comprises a synthetic and the laminate layer comprises a polymer.

19. The method of claim 17 further comprising providing the first second, and third cuts so that at least a portion of the smart card module to be received will substantially float within at least one of the upper and lower cavities.

20. A method of making a contactless smart identification document comprising:

providing a carrier layer including at least a transceiver and electronic circuitry, wherein the carrier comprises at least one permeable area;

arranging the carrier layer between a first contact layer and a second contact layer, and then securing the first contact layer and second contact layer to the carrier layer through at least one of heat and pressure so that at least a portion of one of the first contact layer and the second contact layer migrates into the carrier layer at the one permeable area; and

providing a laminate layer over at least the first and second contact layers.

21. An identification document comprising:

a first PET (polyethylene terephthalate) film including a top surface and a bottom surface;

a second PET film including a top surface and a bottom surface;

an image-receiving layer provided on the first PET film top surface; and

an adhesive layer in contact with the first PET film bottom surface and the second PET film top surface, the adhesive serving to secure the first PET film to the second PET film.