Invention Grant
- Patent Title: Controlled energy adsorption by self-limiting heating for curing processes
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Application No.: US17189649Application Date: 2021-03-02
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Publication No.: US11669709B2Publication Date: 2023-06-06
- Inventor: Ian J. Forster
- Applicant: Avery Dennison Retail Information Services, LLC
- Applicant Address: US OH Mentor
- Assignee: Avery Dennison Retail Information Services LLC
- Current Assignee: Avery Dennison Retail Information Services LLC
- Current Assignee Address: US OH Mentor
- Main IPC: G08B23/00
- IPC: G08B23/00 ; G06K19/077 ; H01Q1/22 ; G06K19/07 ; H01Q1/00

Abstract:
Methods for manufacturing RFID devices are provided with self-limiting heating features. Inducing current flow through the antenna of an RFID device (e.g., by exposing the antenna to a changing magnetic field) will increase heat of the RFID device, thereby curing/sintering elements of the RFID device (which may include curing an adhesive used to couple the antenna to an RFID chip) without applying external heat, which typically heats regions of the RFID device that were not intended to be heated (e.g., the substrate to which the antenna is secured). Inducing current flow through the antenna of an RFID device will reduce the resistance of the antenna, which has a heat-limiting effect that prevents overheating of the RFID device. Inducing current flow may also change the resonant frequency of the antenna, which may provide another heat-limiting effect.
Public/Granted literature
- US20210271949A1 CONTROLLED ENERGY ADSORPTION BY SELF-LIMITING HEATING FOR CURING PROCESSES Public/Granted day:2021-09-02
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