# US 9,038,918 B2 · Antenna for RFID device and method for making the same

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 9,038,918 B2
- Document ID: US9038918B2
- Status: Granted
- Kind: B2
- Application number: 14/105,773
- Filed: 2013-12-13
- Published: 2014-07-10
- Granted: 2015-05-26
- Earliest claimed: 2012-12-13
- Assignees: Avery Dennison Corporation
- Applicants: Ian James Forster
- Inventors: Ian James Forster
- Web page: https://patentgrep.com/patent/US9038918B2

## CPC

- H01Q 1/2208: {associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems (methods or arrangements for sensing record carriers, e.g. for reading patterns G06K7/00; record carrier for use with machines and with at least a part designed to carry digital markings G06K19/00)}
- 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}
- H01Q 1/38: formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142)}
- Y10T 29/49016: Antenna or wave energy "plumbing" making
- Y10T 29/49018: with other electrical component
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)
- G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

An RFID tag or label or device includes an RFID chip and an antenna. The antenna is manufactured by weakening a portion of a foil material, which weakened portion may be in a tessellating pattern. The foil material is then placed in contact with adhesive on a substrate. The foil material and substrate are separated, so as to retain on the substrate the portion of the foil material in contact with the adhesive. The foil material remaining on the substrate defines an antenna, which may subsequently be electrically connected to an RFID chip to provide an RFID tag or label or device.

## Claims

### Claim 1

A method for manufacturing an antenna for an RFID device, comprising:
providing a foil material;
forming a weakened portion in the foil material;
providing a substrate having an adhesive;
placing at least a portion of the foil material in contact with the adhesive of the substrate; and
separating the foil material from the substrate so as to retain on the substrate the portion of the foil material in contact with the adhesive, thereby defining an antenna for an RFID device.

### Claim 2 (depends on 1)

The method of claim 1, wherein
said providing a foil material includes forming at least two shapes in the foil material with a boundary between the at least two shapes, and
said forming a weakened portion in the foil material includes weakening at least a portion of the boundary.

### Claim 3 (depends on 2)

The method of claim 2, wherein said forming a weakened portion in the foil material includes thinning the foil material along at least a portion of the boundary.

### Claim 4 (depends on 2)

The method of claim 2, wherein said forming a weakened portion in the foil material includes removing the foil material along at least a portion of the boundary.

### Claim 5 (depends on 1)

The method of claim 1, wherein
said providing a foil material includes forming more than two shapes in the foil material with a boundary between adjacent shapes, and
said forming a weakened portion in the foil material includes weakening at least a portion of at least one of the boundaries.

### Claim 6 (depends on 1)

The method of claim 1, wherein
said providing a foil material includes forming a pattern of tessellating shapes in the foil material with a boundary between adjacent tessellating shapes, and
said forming a weakened portion in the foil material includes weakening at least a portion of at least one of the boundaries.

### Claim 7 (depends on 6)

The method of claim 6, wherein said pattern of tessellating shapes is formed by rotary embossing.

### Claim 8 (depends on 6)

The method of claim 6, wherein said pattern of tessellating shapes is formed by laser processing.

### Claim 9 (depends on 1)

The method of claim 1, wherein said separating the foil material from the substrate includes separating the foil material from the substrate at the weakened portion.

### Claim 10

A method for manufacturing an RFID device, comprising:
providing a foil material;
forming a weakened portion in the foil material;
providing a substrate having an adhesive;
placing at least a portion of the foil material in contact with the adhesive of the substrate;
separating the foil material from the substrate so as to retain on the substrate the portion of the foil material in contact with the adhesive, thereby defining an antenna;
providing an RFID chip; and
electrically connecting the RFID chip to the antenna.

### Claim 11 (depends on 10)

The method of claim 10, wherein
said providing a foil material includes forming at least two shapes in the foil material with a boundary between the at least two shapes, and
said forming a weakened portion in the foil material includes weakening at least a portion of the boundary.

### Claim 12 (depends on 11)

The method of claim 11, wherein said forming a weakened portion in the foil material includes thinning the foil material along at least a portion of the boundary.

### Claim 13 (depends on 11)

The method of claim 11, wherein said forming a weakened portion in the foil material includes removing the foil material along at least a portion of the boundary.

### Claim 14 (depends on 10)

The method of claim 10, wherein
said providing a foil material includes forming more than two shapes in the foil material with a boundary between adjacent shapes, and
said forming a weakened portion in the foil material includes weakening at least a portion of at least one of the boundaries.

### Claim 15 (depends on 10)

The method of claim 10, wherein
said providing a foil material includes forming a pattern of tessellating shapes in the foil material with a boundary between adjacent tessellating shapes, and
said forming a weakened portion in the foil material includes weakening at least a portion of at least one of the boundaries.

### Claim 16 (depends on 15)

The method of claim 15, wherein said pattern of tessellating shapes is formed by rotary embossing.

### Claim 17 (depends on 15)

The method of claim 15, wherein said pattern of tessellating shapes is formed by laser processing.

### Claim 18 (depends on 10)

The method of claim 10, wherein said separating the foil material from the substrate includes separating the foil material from the substrate at the weakened portion.

### Claim 19

An RFID device manufactured by a process comprising:
providing a foil material;
forming a weakened portion in the foil material;
providing a substrate having an adhesive;
placing at least a portion of the foil material in contact with the adhesive of the substrate;
separating the foil material from the substrate so as to retain on the substrate the portion of the foil material in contact with the adhesive, thereby defining an antenna;
providing an RFID chip; and
electrically connecting the RFID chip to the antenna.