|Home||Internet of Things||Aerospace||Apparel||Energy||Defense||Health Care||Logistics||Manufacturing||Retail|
Ask The Experts Forum
Where Can I Find Passive UHF RFID Tags With WORM?
Do any companies currently offer RFID chips with write-once-read-many functionality?
I believe the major RFID chip and inlay providers no longer offer WORM tags. When the first passive UHF RFID transponders were introduced, many used WORM chips. However, GS1's EPC standards specified rewritable memory with a feature called permalock, which allows users to lock the Electronic Product Code (EPC) memory. This enables users to create a WORM-like transponder, since the EPC cannot be written to again once the permalock feature is used. There might be a Chinese chip maker that offers a true WORM device, but it is unlikely to be significantly cheaper than the cost of a standard UHF Gen 2 RFID transponder, so I would advocate going with conventional tags and using the permalock feature.
—Mark Roberti, Founder and Editor, RFID Journal
Login and post your comment!
Not a member?
Signup for an account now to access all of the features of RFIDJournal.com!
SEND IT YOUR WAY
RFID JOURNAL EVENTS
ASK THE EXPERTS
Simply enter a question for our experts.
TAKE THE POLL
|RFID Journal LIVE!||RFID in Health Care||LIVE! LatAm||LIVE! Brasil||LIVE! Europe||RFID Connect||Virtual Events||RFID Journal Awards||Webinars||Presentations|