Systems and methods for breakaway RFID tags

• US 8,179,265 B2
• Filed: 06/21/2007
• Issued: 05/15/2012
• Est. Priority Date: 06/21/2006
• Status: Active Grant

• Current Assignee: Smartrac Technology Fletcher, Inc. (Avery Dennison Corporation)
• Original Assignee: Neology Incorporated (OEP Technologie BV)
• Inventors: Elizondo, Paul, Azevedo, John
• Primary Examiner(s): Swarthout, Brent
• Assistant Examiner(s): SMALL, NAOMI J
• Application Number:
  US11/766,737
• Publication Number:
  US 20080030342A1
• Time in Patent Office: 1,790 Days
• Field of Search: 340/572.8
• US Class Current: 340/572.8
• CPC Class Codes: G06K 19/0723 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
• CPC Class Codes: G06K 19/07796 arrangements on the record carrier to allow stacking of a plurality of similar record carriers, e.g. to avoid interference between the non-contact communication of the plurality of record carriers
• CPC Class Codes: G06K 19/07798 part of the antenna or the integrated circuit being adapted for rupturing or breaking, e.g. record carriers functioning as sealing devices for detecting not-authenticated opening of containers electronic seals G09F3/03
• CPC Class Codes: G06K 7/0008 General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
• CPC Class Codes: G06K 7/10029 the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot
• CPC Class Codes: G06K 7/10039 interrogator driven, i.e. synchronous
• CPC Class Codes: G06K 7/10475 arrangements to facilitate interaction with further interrogation devices, e.g. such that at least two interrogation devices may function and cooperate in a network of such devices
• CPC Class Codes: G06Q 10/08 Logistics, e.g. warehousing, loading or distribution; Inventory or stock management
• CPC Class Codes: H04J 3/0641 Change of the master or reference, e.g. take-over or failure of the master
• CPC Class Codes: H05K 1/02 Details
• CPC Class Codes: H05K 1/0266 Marks, test patterns or identification means
• CPC Class Codes: H05K 1/0268 for electrical inspection or testing
• CPC Class Codes: H05K 1/142 Arrangements of planar printed circuit boards in the same plane, e.g. auxiliary printed circuit insert mounted in a main printed circuit
• CPC Class Codes: H05K 2201/0909 Preformed cutting or breaking line
• CPC Class Codes: H05K 2201/09127 PCB or component having an integral separable or breakable part
• CPC Class Codes: H05K 3/30 Assembling printed circuits with electric components, e.g. with resistor

Abstract

A breakaway RFID tag is configured such that it comprises part of a Printed Circuit Board Assembly (PCB). Thus, the breakaway RFID tag can be used to track the PCB as it migrates through a manufacturing process. In one embodiment, the RFID tag can be assembled first and then used to track the PCB as it is populated with components and installed into larger assemblies and ultimately into the end device. Once the PCB is installed into a larger assembly or the end device, the breakaway RFID tag is configured such that it can be broken off and attached to the outside of the larger assembly or end device.

Claims

1. A printed circuit board (PCB) comprising:

a main circuit area;

a breakaway RFID tag comprising a printed antenna, an integrated circuit (IC) pad configured to receive a RFID transponder IC; and

a breakaway connection configured to allow the breakaway RFID tag to be detached from the main circuit area to which it is initially attached and attached to the exterior of an assembly comprising the PCB where the breakaway RFID tag maintains its operability.

2. The PCB of claim 1, wherein the IC pad is a surface mount pad.

3. The PCB of claim 1, wherein the IC pad is a dual axial lead pad.

4. A breakaway RFID tag comprising:

a printed antenna;

an RFID transponder IC coupled with the printed antenna; and

a breakaway connection configured to connect the breakaway RFID tag with a PCB that includes a main circuit area and to allow the breakaway RFID tag to be detached from the PCB and attached to the exterior of an assembly comprising the PCB where the breakaway RFID tag maintains its operability.

5. The breakaway RFID tag of claim 4 wherein the transponder IC pad is a surface mount IC.

6. The breakaway RFID tag of claim 4 wherein the transponder IC pad is a dual axial lead IC.

7. A method of tracking an assembly comprising:

fabricating a PCB comprising a breakaway RFID tag and a main circuit area that includes traces for other components, the breakaway RFID tag being connected with the main circuit area via a breakaway connection;

populating the breakaway RFID tag with an RFID transponder IC;

scanning the breakaway RFID tag and recording identifying information contained in the breakaway RFID tag after it is scanned;

installing the PCB into a larger assembly or device;

detaching the breakaway RFID tag from the main circuit area;

placing the breakaway RFID tag on the exterior of the assembly; and

tracking the assembly using the breakaway RFID tag.

8. The method of claim 7 comprising the additional steps of:

populating the PCB; and

scanning the breakaway RFID tag again after populating the PCB.

9. The method of claim 7 comprising the additional steps of inspecting the PCB for defects;

and using the breakaway RFID tag to track the defects on the PCB.

10. The method of claim 7 comprising the additional steps of inspecting the assembly for defects;

and using the breakaway RFID tag to track the defects on the assembly.

11. A method of diagnosing problems in an assembly with a PCB that includes a main circuit area comprising:

scanning a breakaway RFID tag mounted on the exterior of the assembly and previously detached from the main circuit area of the PCB to which the RFID tag was previously connected via a breakaway connection;

using the identifying information contained in the breakaway RFID tag to retrieve recorded information associated with the breakaway RFID tag and the PCB; and

analyzing the recorded information associated with the RFID tag and the PCB to trouble-shoot the assembly process.

12. A method for troubleshooting an assembly process comprising:

scanning a breakaway RFID tag that has been detached from a PCB via a breakaway connection and recording identifying information contained in the breakaway RFID tag after it is scanned;

using the identification information on the breakaway RFID tag to retrieve information related to an assembly or device into which the PCB has been installed;

using the retrieved information to troubleshoot a problem with the assembly or device; and

storing information related to service of the assembly or device.

13. The method of claim 12, wherein the troubleshooting step comprises tracking failure trends related to the assembly or device.

14. The method of claim 13, comprising the additional step of identifying problems with the assembly or device based on the tracking failure trends step.

15. The method of claim 14, comprising the additional steps of:

determining if problems exist in an assembly process related to the assembly or device; and

determining if problems exist in a repair process related to the assembly or device.

16. The method of claim 12, wherein the retrieved information is retrieved from a database.

17. The method of claim 12, comprising the additional step of associating information related to servicing with the identification information contained in the breakaway RFID tag.

18. The method of claim 17, comprising the additional step of storing the information related to servicing in a database.

19. The method of claim 12, wherein the RFID tag is attached to the outside of a unit in the field.