We use chipless RFID marker that can be as cheap as 1ct, which is lightly more than the actual printing costs of the tags.
Everyone is talking about Radio Frequency IDentification (RFID). Identifying objects in business is said to become more and more important. The main purpose is tagging commodities in a unique way so that they can easily and quickly be re-identified at a later time. They are meant to be a better kind of barcode that allows to tag products even if the code is out of the line of sight. The main stream technology concentrates on microchips that can be programmed and read by identifying radio-frequency signals either sent or reflected by the tag.
| RFID Chips | RFID chipless markers |
|---|---|
| expensive,min. 50ct | low-cost, 1ct plus the material |
| semiconductor carrier | carrier can be any material |
| programmable | random unique finger print |
| sensitive against dust, can break | stability depends on carrier material |
| not temperature resistent | temperature resistent |
| invisible marking | invisible marking |
| forgable | unforgable |
The big disadvantage of the current technology is that they all need a semiconductor chip to function. Whatever estimate you take into account, chips will cause considerable costs for production. In addition chips are sensitive against external influence like humidity, temperature or dirt.
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