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RFID Tag Attachments

Monday, December 18, 2006

by Adi Tedjasaputra

Last week, the article the Art and Science of RFID Tagging introduced several factors that can influence the performance of air interface UHF RFID passive tags and the RFID tagging positions, i.e. R-Spot, L-Spot and D-Spot.

This week, we will continue the theme of RFID tagging and introduce three different kinds of RFID tags based on their attachment with identified objects, i.e. attachable, implantable and insertion tags. Depending on their nature of use, these tags are either reusable or disposable. Understanding the basic design of different RFID tag attachments can help the evaluation of different RFID tags available in the market for specific purposes or applications.

More than eighty five percent of the RFID tags available in the market are attachable tags. Attachable tags are popular due the broad and diverse RFID applications that require flexible and different types of attachments. The tags are designed to be attached on the surface of identified objects with permanent, semi-permanent or temporary attachment means. The most popular form of attachable tags is pressure-sensitive label, commonly known as smart label.

Implantable tags or embedded tags are usually aimed for permanent or long-term implantation, such as animal traceability and machine readable travel documents (MRTD). The ultimate benefit of implantable tags is the unity between the tags and their identified objects. Beside some ethical issues on human RFID tagging, the usage problems on human or animal implants may be tissue irritation and tissue migration problems.

Insertion tags, on the other hand, are designed to have little contact or no contact with identified objects. The main purpose of the tags is to enable identification for certain objects without specific attachment process and without tampering the identified objects, thus preserving the original state of the objects. Most of the insertion tags take form of non-adhesive labels that can be inserted into printed materials, their covers or other product packages easily. Since these tags can also be easily removed from identified objects, these tags only provide limited protection to identified object tampering or theft.

Send your comments and discuss.

Labels: label, rfid, tag, technology