Smallest form factor, miniaturised NFC (near-field communication) tags, comprising sensors, microprocessors and batteries, can be built using liquid crystal polymer (LCP), a high-performance thermoplastic polymer, both used as the substrate and encapsulation material.
The modules have diameters as small as 6mm and are still readable with standard NFC tag readers.
Encapsulation with LCP provides good protection against chemically aggressive environments such as acids and salty water at minimal wall thicknesses. At the same time, LCP is transparent to electromagnetic fields, providing excellent readability for standard RFID tag readers.
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