Method of variable position strap mounting for RFID transponder

• US 20050282495A1
• Filed: 06/18/2004
• Published: 12/22/2005
• Est. Priority Date: 06/18/2004
• Status: Active Grant

• Current Assignee: Avery Dennison Retail Information Services LLC (Avery Dennison Corporation)
• Original Assignee: Avery Dennison Corporation
• Inventors: Forster, Ian J.
• Granted Patent: US 7,292,148 B2
• Time in Patent Office: Days
• US Class Current: 455/41.2
• CPC Class Codes: G06K 19/0726 the arrangement including a circuit for tuning the resonance frequency of an antenna on the record carrier
• 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 7/0095 Testing the sensing arrangement, e.g. testing if a magnetic card reader, bar code reader, RFID interrogator or smart card reader functions properly testing of electrical circuits G01R31/28
• CPC Class Codes: Y10T 156/10 Methods of surface bonding and/or assembly therefor
• CPC Class Codes: Y10T 156/1075 of plural laminae from single stock and assembling to each other or to additional lamina
• CPC Class Codes: Y10T 29/49124 On flat or curved insulated base, e.g., printed circuit, etc.

Abstract

A method of coupling an RFID chip to an antenna includes the steps of, iteratively until a test criterion is met, positioning an RFID chip relative to an antenna and testing the RFID chip and antenna. Once the test criterion is met, the RFID chip is coupled with the antenna. A method of coupling an RFID chip to one of a plurality of various antennas is also provided. A method of coupling an RFID chip to an antenna on an object is also provided.

Claims

1. A method of making a transponder that includes an RFID chip and an antenna, the method comprising:

iteratively, until a test criterion is met;

positioning the chip and the antenna relative to each other, to thereby configure the RFID transponder; and

testing the RFID transponder;

once the test criterion is met, coupling the RFID chip to the antenna.

2. The method of claim 1, wherein the test criterion includes a predetermined test criterion.

3. The method of claim 1, wherein the test criterion includes a result comparison-based test criterion.

4. The method of claim 1, wherein the antenna is a dipole antenna comprising two antenna portions.

5. The method of claim 4, wherein at least one of the two antenna portions includes at least one extended strap bond portion.

6. The method of claim 1, wherein the antenna includes a slot antenna.

7. The method of claim 1, wherein the antenna includes a loop antenna.

8. The method of claim 1, wherein the antenna includes a hole antenna.

9. The method of claim 1, wherein the RFID chip is part of an RFID strap that includes strap leads mounted to the chip.

10. The method of claim 1, wherein the positioning the chip and the antenna relative to each other includes adjusting the position of the chip and antenna relative to each other in a first direction.

11. The method of claim 1, wherein the positioning the chip and the antenna relative to each other includes adjusting the position of the chip and antenna relative to each other in a second direction.

12. The method of claim 1, wherein the positioning the chip and the antenna relative to each other includes adjusting the attach angle between the chip and the antenna.

13. The method of claim 1, wherein the testing includes determining the resonant frequencies of the transponder.

14. The method of claim 1, wherein the testing includes determining the frequency of maximum energy absorption of the transponder.

15. The method of claim 1, wherein the testing includes determining the frequency of maximum radiation coupling of the transponder.

16. The method of claim 1, wherein the testing includes determining the reflection and/or re-radiation of RF energy in amplitude and/or phase of the transponder.

17. The method of claim 1, wherein the testing includes testing the communication properties of the transponder.

18. The method of claim 1, wherein the positioning and testing is performed simultaneously.

19. A method of making a transponder that includes an RFID chip and an antenna, the method comprising:

iteratively, until a test criterion is met;

positioning the chip and an antenna of an antenna structure containing a plurality of various antennas relative to each other, to thereby configure the RFID transponder; and

testing the transponder;

once the test criterion is met, coupling the RFID chip with the antenna.

20. The method of claim 19, wherein the test criterion includes a predetermined test criterion.

21. The method of claim 19, wherein the test criterion includes a result comparison-based test criterion.

22. The method of claim 19, wherein the RFID chip is part of an RFID strap that includes strap leads mounted to the chip.

23. The method of claim 19, wherein the antenna structure includes a plurality of various dipole antennas.

24. The method of claim 19, wherein the testing includes determining the resonant frequencies of the transponder.

25. The method of claim 19, wherein the testing includes determining the frequency of maximum energy absorption of the transponder.

26. The method of claim 19, wherein the testing includes determining the frequency of maximum radiation coupling of the transponder.

27. The method of claim 19, wherein the testing includes determining the reflection and/or re-radiation of RF energy in amplitude and/or phase of the transponder.

28. The method of claim 19, wherein the testing includes testing the communication properties of the transponder.

29. The method of claim 19, wherein the positioning and testing is performed simultaneously.

30. A method of making a transponder that includes an RFID chip and an antenna on an object comprising:

applying an antenna to the object;

iteratively, until a test criterion is met;

positioning the chip and the antenna relative to each other, to thereby configure the RFID transponder; and

testing the RFID transponder;

once the test criterion is met, coupling the RFID chip to the antenna

31. The method of claim 30, wherein the test criterion includes a predetermined test criterion.

32. The method of claim 30, wherein the test criterion includes a result comparison-based test criterion.

33. The method of claim 30, wherein the antenna is a dipole antenna comprising two antenna portions.

34. The method of claim 33, wherein at least one of the two antenna portions includes at least one extended strap bond portion.

35. The method of claim 30, wherein the antenna includes a slot antenna.

36. The method of claim 30, wherein the antenna includes a loop antenna.

37. The method of claim 30, wherein the antenna includes a hole antenna.

38. The method of claim 30, wherein the RFID chip is part of an RFID strap that includes strap leads mounted to the chip.

39. The method of claim 30, wherein the positioning the chip and the antenna relative to each other includes adjusting the position of the chip and antenna relative to each other in a first direction.

40. The method of claim 30, wherein the positioning the chip and the antenna relative to each other includes adjusting the position of the chip and antenna relative to each other in a second direction.

41. The method of claim 30, wherein the positioning the chip and the antenna relative to each other includes adjusting the attach angle between the chip and the antenna.

42. The method of claim 30, wherein the testing includes determining the resonant frequencies of the transponder.

43. The method of claim 30, wherein the testing includes determining the frequency of maximum energy absorption of the transponder.

44. The method of claim 30, wherein the testing includes determining the frequency of maximum radiation coupling.

45. The method of claim 30, wherein the testing includes determining the reflection and/or re-radiation of RF energy in amplitude and/or phase.

46. The method of claim 30, wherein the testing includes testing communication properties.

47. The method of claim 30, wherein the object includes a package.

48. The method of claim 47, wherein the package is packed prior to coupling the RFID chip with the antenna.

49. The method of claim 30, wherein the object includes fabric.

50. The method of claim 30, wherein the positioning and testing is performed simultaneously.

51. A method of making a transponder that includes an RFID chip and an antenna on an object comprising:

applying an antenna structure to the object, the antenna structure including a plurality of antennas;

iteratively, until a test criterion is met;

positioning the chip and an antenna of an antenna structure containing a plurality of various antennas relative to each other, to thereby configure the RFID transponder; and

testing the transponder;

once the test criterion is met, coupling the RFID chip with the antenna.

52. The method of claim 51, wherein the test criterion includes a predetermined test criterion.

53. The method of claim 51, wherein the test criterion includes a result comparison-based test criterion.

54. The method of claim 51, wherein the chip is part of a strap that includes strap leads mounted to the chip.

55. The method of claim 51, wherein the antenna structure includes a plurality of various dipole antennas.

56. The method of claim 51, wherein the testing includes determining the resonant frequencies of the transponder.

57. The method of claim 51, wherein the testing includes determining the frequency of maximum energy absorption of the transponder.

58. The method of claim 51, wherein the testing includes determining the frequency of maximum radiation coupling of the transponder.

59. The method of claim 51, wherein the testing includes determining the reflection and/or re-radiation of RF energy in amplitude and/or phase of the transponder.

60. The method of claim 51, wherein the testing includes testing the communication properties of the transponder.

61. The method of claim 51, wherein the object includes a package.

62. The method of claim 52, wherein the package is packed prior to coupling the chip with the antenna.

63. The method of claim 51, wherein the positioning and testing is performed continuously.