Method of manufacturing a radio frequency identification device
First Claim
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1. A method of manufacturing an antenna structure for a radio frequency identification (RFID) tag, comprising the steps of:
- providing a conductive layer, a two part adhesive layer in which one part is tacky and another part is not tacky, and a carrier layer supporting the conductive layer and the adhesive layer;
cutting a first antenna pattern through the conductive layer wherein the cutting includes performing a partial die cut with one of a rotary die cutter or a laser cutter up to the carrier layer but not through the carrier layer and through the conductive layer and the adhesive layer;
creating a microprocessor attachment portion by further cutting in the first antenna pattern to create a RFID antenna structure;
where the microprocessor attachment portion in the first antenna pattern includes ablating the conductive layer using a computer controlled cutting laser; and
attaching a microprocessor to the microprocessor attachment portion wherein the RFID antenna structure has multiple contact points allowing for one of a direct attachment point for the microprocessor or a strap attachment point each being different points on the RFID antenna structure without changing a design of the RFID antenna structure.
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Abstract
The present invention relates to a method of manufacturing an antenna for a radio frequency (RFID) tag. A web of material is provided to at least one cutting station in which a first pattern is generated in the web of material. A further cutting may occur to create additional modifications in order to provide a microchip attachment location and to selectively tune an antenna for a particular end use application. The cutting may be performed by a laser, die cutting, stamping or combinations thereof.
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Citations
16 Claims
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1. A method of manufacturing an antenna structure for a radio frequency identification (RFID) tag, comprising the steps of:
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providing a conductive layer, a two part adhesive layer in which one part is tacky and another part is not tacky, and a carrier layer supporting the conductive layer and the adhesive layer; cutting a first antenna pattern through the conductive layer wherein the cutting includes performing a partial die cut with one of a rotary die cutter or a laser cutter up to the carrier layer but not through the carrier layer and through the conductive layer and the adhesive layer; creating a microprocessor attachment portion by further cutting in the first antenna pattern to create a RFID antenna structure;
where the microprocessor attachment portion in the first antenna pattern includes ablating the conductive layer using a computer controlled cutting laser; andattaching a microprocessor to the microprocessor attachment portion wherein the RFID antenna structure has multiple contact points allowing for one of a direct attachment point for the microprocessor or a strap attachment point each being different points on the RFID antenna structure without changing a design of the RFID antenna structure. - View Dependent Claims (2, 3, 4)
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5. A method of manufacturing a radio frequency identification (RFID) tag comprising the steps of:
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providing a carrier layer; placing a conductive material on the carrier layer such that the conductive layer is attached to the carrier layer by an adhesive layer wherein a plurality of patterned registration marks is provided on top of one of the adhesive or carrier layer; cutting portions of the conductive material with a computer controlled laser to form an RFID antenna structure to create an RFID tag such that the plurality of registration marks are provided to assist in the cutting of a pattern for the RFID antenna structure which the laser uses while continuously ablating the conductive material and the adhesive layer; selectively cutting with the laser additional portions of the RFID tag to create a modified RFID tag and forming at least one of a logo, indicia, name or combinations thereof; creating a microprocessor attachment portion by further cutting in the antenna structure; removing the modified RFID tag from the carrier layer; tracing by a second laser cutter on a cutting path the conductive layer and the adhesive layer to alter the shape of the RFID antenna structure to create a modified antenna structure; and attaching a microprocessor directly to the RFID antenna structure to create a standard RFID tag. - View Dependent Claims (6, 7, 8, 9, 10)
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11. A method of manufacturing a radio frequency identification (RFID) tag, comprising the steps of:
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providing a conductive layer having a metal foil layer bonded to a carrier layer in areas where an antenna pattern is to be formed, the metal foil layer is bonded to the carrier layer by an adhesive layer; cutting a first antenna pattern in the conductive layer; cutting a second pattern in the first antenna pattern to create a RFID antenna structure wherein the cutting includes performing a partial die cut up to the carrier layer through the conductive layer and the adhesive layer and the conductive layer and RFID antenna structure are manufactured in a continuous roll to roll process; selectively cutting with portions of one of the first and second patterns in the RFID antenna structure to create a modified RFID tag; creating a microprocessor attachment portion by further cutting in the antenna structure and attaching a microprocessor such that none of the conductive layer is present in the microprocessor attachment portion;
where the microprocessor attachment portion in the first antenna pattern includes ablating the conductive layer using a computer controlled cutting laser;tracing by a laser cutter on a laser cutting path the conductive layer and the adhesive layer to alter the shape of the RFID antenna structure to create a modified antenna structure; and removing the modified RFID tag from the carrier layer. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification