Portable object with chip and antenna

• US 7,028,910 B2
• Filed: 02/01/2002
• Issued: 04/18/2006
• Est. Priority Date: 02/02/2001
• Status: Expired due to Fees

• Current Assignee: Gemalto SA (Thales SA)
• Original Assignee: Systemes Schlumberger
• Inventors: Leibenguth, Joseph, Provost, Stephane, Chesneau, Jocelyne, Serra, Fabrizio, Reignoux, Yves
• Primary Examiner(s): Le, Thien M.
• Assistant Examiner(s): MAI, THIEN T
• Application Number:
  US10/470,909
• Publication Number:
  US 20040129786A1
• Time in Patent Office: 1,537 Days
• Field of Search: 235/492, 235/488, 235/491, 235/486, 235/380, 235/493, 343/742, 343/867
• US Class Current: 235/492
• 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 19/07783 the coil being planar

Abstract

The invention concerns a method of manufacturing a module intended to create a portable object with chip and antenna. The portable object comprises an antenna and a chip placed on an insulating substrate. The antenna comprises a plurality of turns. The method comprises a first step in which an insulating substrate with at least one side is provided. The method is characterised in that it further comprises a second step in which an individual housing opening in the said side is made for each of the said turns and a third step in which said antenna comprising a plurality of turns is made by placing a conducting material in each individual housing.

Claims

1. A method of manufacturing a module (24) intended to create a portable object with chip and antenna (36) comprising an antenna (20, 20a, 20b, 20c) and a chip (18) placed on an insulating substrate (10), said antenna (20, 20a, 20b, 20c) comprising a plurality of turns (14), said method comprising a first step in which an insulating substrate (10) with at least one side (10′

) is provided, the method is characterised in that it further comprises;

a second step in which an individual housing (12, 12a, 12b, 12c) opening in the said side (10′

) is made for each of the said turns (14);

a third step in which said antenna (20, 20a, 20b, 20c) comprising a plurality of turns (14) is made by placing a conducting material (20a, 20b, 20c) in each individual housing (12, 12a, 12b, 12c).

2. The method according to claim 1, characterised in that a filling conducting resin (20c) is applied in the individual housings (12a, 12c) and in that the said conducting resin (20c) is polymerised to form the antenna (20c).

3. The method according to claim 1, characterised in that a conducting wire (20b) is placed in each individual housing (12, 12a, 12b, 12c) to form the antenna (20b).

4. A method of manufacturing a batch of n modules for portable objects with chip and antenna (36) each comprising:

an antenna (20, 20a, 20b, 20c) comprising a plurality of turns (14); and

a chip (18)

placed on an insulating substrate (10), characterised in that a plate (26) is provided on which n areas (28) are defined each including an insulating substrate (10) each of which comprises at least one side (10′

),

in that a plurality of individual housing (12, 12a, 12b, 12c) opening in each of the said sides (10′

) is made, said individual housings (12, 12a, 12b, 12c) being intended to contain separately each turn (14) of an antenna (20, 20a, 20b, 20c); and

in that an antenna (20, 20a, 20b, 20c) comprising a plurality of turns (14) is made by placing a conducting material (20a, 20b, 20c) in each of the said individual housings (12, 12a, 12b, 12c).

5. A method of creating a portable object with chip and antenna (36) characterised in that said portable object with chip and antenna (36) is made from a module (24) comprising a chip (18), an antenna comprising a plurality of turns (14), a substrate (10) in which a plurality of individual housings (12, 12a, 12b, 12c) is made to individually contain the turns (14).

6. The method according to claim 5 characterised in that the substrate comprises a thermoplastic, in that at least one layer (38,40) of thermoplastic is placed on said module (24) and in that the assembly formed by said module (24) and said layer (38, 40) of thermoplastic is hot rolled.

7. The method according to claim 5, characterised in that an additional form (42) forming a cover is placed over the individual housings (12, 12a, 12b, 12c) of the said module (24).

8. The method according to claim 5, characterised in that said substrate (10) comprises a thermoplastic, in that said substrate (10) is placed in a mould (32) and in that a thermoplastic material is injected in said mould (32).

10. Portable object with chip and antenna (36) comprising a chip (18) and an antenna (20, 20a, 20b, 20c), the portable object is characterised in that it comprises a module (24) obtained according to claim 8.

9. A module (24) intended to create a portable object with chip and antenna (36) comprising an antenna (20, 20a, 20b, 20c) and a chip (18) placed on an insulating substrate (10), said antenna comprising a plurality of turns (14), the module (24) is characterised in that it comprises:

an insulating substrate (10) comprising at least one side (10′

);

a plurality of individual housings (12, 12a, 12b, 12c) opening in said side (10′

); and

in that each individual housing (12, 12a, 12b, 12c) comprises a turn (14) of said antenna (20, 20a, 20b, 20c), said turn (14) being made of a conducting material (20a, 20b, 20c).