Coating Technology to Improve Reliability on Ceramic Tag and Reader Antenna for RFIDRadio Frequency Identification System

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to ceramic dielectric antennas for tags and readers of radio frequency identification (RFID) systems, and particularly to prevent oxidation and prevention of oxidation and prevention of silver or copper, which are electrode materials of antennas formed on ceramic tags and reader antennas. However, it is to secure long-term reliability due to changes in external environment such as characteristics change by adsorption of electrode by external gas or element. Therefore, a protective film must be formed at a temperature not affecting the ceramic antenna element or IC for RFID, that is, 200 ° C. or lower, and a polymer protective film is formed due to these conditions. In addition, by forming a protective film, the external shock resistance can be increased to reduce the risk of damage to the ceramic tag and reader antenna. Polymer materials are based on epoxy, urethane, and silicone, and are coated and dried by spraying, powder, dipping or spin coating, and in some cases, heat-treated at 200 ° C or below to completely cure them, resulting in high reliability and strength from external impact. The purpose is to manufacture a ceramic tag and reader antenna for RFID to improve the.;Radio Frequency Identification System (RFID), Dielectric Ceramic Tag and Reader Antenna, Polymer (Epoxy, Urethane, Silicon) Coating, (Spray, Spin, Powder, Dipping) Coating