RFID TAG PACKAGE AND TIRE ASSEMBLY

• US 20100108211A1
• Filed: 10/30/2008
• Published: 05/06/2010
• Est. Priority Date: 10/30/2008
• Status: Active Grant

• Current Assignee: Goodyear Tire & Rubber Company
• Original Assignee: Goodyear Tire & Rubber Company
• Inventors: Fenkanyn, John Michael
• Granted Patent: US 8,157,172 B2
• Time in Patent Office: Days
• US Class Current: 152/152.100
• CPC Class Codes: B29D 2030/0077 Directly attaching monitoring devices to tyres before or after vulcanization, e.g. microchips
• CPC Class Codes: B60C 23/0493 for attachment on the tyre
• CPC Class Codes: H01Q 1/2241 used in or for vehicle tyres
• CPC Class Codes: H01Q 9/16 with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole H01Q9/44 takes precedence
• CPC Class Codes: H01Q 9/20 Two collinear substantially straight active elements; Substantially straight single active elements H01Q9/28 takes precedence
• CPC Class Codes: H01Q 9/27 Spiral antennas

Abstract

A tire and RFID tag combine as an assembly to include a tire and a tag package mounted to a tire tag mounting surface. The tag package includes a carrier substrate having a die receiving surface and one or more interconnection tabs mounted to the die receiving surface. The tag package further includes a dipole antenna or other antenna configuration formed by first and second antenna members having inward ends connected to respective first and second interconnection tabs on the die receiving surface and outer antenna segments extending outward from the carrier substrate. An integrated circuit die mounts to the die receiving surface and has electrical contact(s) in contacting engagement with the interconnection tab(s). A cap member or, alternatively, a cylindrical encapsulating member, may be utilized for enclosing the integrated circuit die, the carrier substrate, and the inward ends of the first and second antenna members; the outer antenna segments of the first and second antenna members extending outward from the cap member or encapsulating member in operable position against respective portions of the tire tag mounting surface.

Claims

1. A tire and RFID tag assembly comprising:

a tire having a tag mounting surface;

a tag package mounted to the tag mounting surface and comprising;

a carrier substrate having a die receiving surface and at least one interconnection tab mounted to the die receiving surface and at least partially composed of electrically conductive material;

an antenna having an end connected to the interconnection tab on the die receiving surface and an antenna segment extending outward from the carrier substrate;

an integrated circuit die mounted to the die receiving surface and having at least one electrical contact in contacting engagement with the interconnection tab.

2. The assembly of claim 1, wherein the antenna is a dipole antenna comprising first and second antenna members having inward ends connected to respective first and second interconnection tabs on the die receiving surface and outer antenna segments extending outward from the carrier substrate, and the integrated circuit die having electrical contact means in contacting engagement with the first and second interconnection tabs.

3. The assembly of claim 2, further comprising a cap member substantially enclosing the integrated circuit die, the carrier substrate, and the inward ends of the first and second antenna members;

the outer antenna segments of the first and second antenna members extending outward from the cap member.

4. The assembly of claim 2, wherein the antenna segments have a substantially coiled elongate configuration and the outer antenna segments are affixed against respective portions of the tire tag mounting surface.

5. The assembly of claim 1, wherein the interconnection tab comprises conductive material operably mounted to at least a portion of the carrier substrate and connected to the one electrical contact of the integrated circuit die.

6. The assembly of claim 1, further comprising a substantially cylindrical encapsulation body surrounding the carrier substrate, the antenna end connected to the interconnection tab and the integrated circuit die.

7. The assembly of claim 1, wherein the integrated circuit die includes at least one integrated circuit device.

8. The assembly of claim 7, wherein the integrated circuit die is operably mounted substantially flat against the die receiving surface and the electrical contact of the integrated circuit die is operably positioned substantially flat against the interconnection tab.

9. The assembly of claim 8, wherein the antenna is a dipole antenna comprising first and second antenna members having inward ends connected to respective first and second interconnection tabs on the die receiving surface and outer antenna segments extending outward from the carrier substrate, and the integrated circuit die having at least first and second electrical contacts in contacting engagement with the first and second interconnection tabs.

10. The assembly of claim 9, wherein the outer antenna segments have a substantially coiled configuration and are positioned against respective portions of the tire tag mounting surface.

11. The assembly of claim 10, wherein the integrated circuit die is operably mounted substantially flat against the die receiving surface and the first and second electrical contacts of the integrated circuit die are operably positioned substantially flat against the interconnection tab.

12. The assembly of claim 11, further comprising a substantially cylindrical encapsulation body surrounding the carrier substrate, the inward ends of the first and second antenna segments and the integrated circuit die.

13. The assembly of claim 10, wherein the integrated circuit die further including at least one support leg member extending from the die mounting surface of the carrier substrate operably positioned to support the carrier substrate and the integrated circuit die on the tag mounting surface of the tire.

14. A tire and RFID tag assembly comprising:

a tire having a tag mounting surface;

a tag package mounted to the tag mounting surface and comprising;

an electronic tag device having electrical interconnection contacts at opposite sides;

an antenna comprising first and second coiled antenna segments connecting coiled antenna segment ends respectively with the electronic tag device contacts;

a tubular casing surrounding the tag device and dipole antenna segment ends.

15. The tag assembly of claim 14, wherein the first and second coiled antenna segments include remote ends projection from the tubular casing in an axial alignment.

16. The tag assembly of claim 15, wherein further comprising a carrier substrate encased by the tubular casing and having a receiving surface for supporting the tag device.