February 16, 2007

The new mu-chip by Hitachi


The RFID, wireless semiconductor integrated circuit that stores an ID number in its memory, was proposed about a decade ago as an alternative to the barcode. Its use, however, has so far been limited to a few applications where its advantages offset its relatively high cost.


The µ-chip is Hitachi's response to resolving some of the issues associated with conventional RFID technology. The µ-chip uses the frequency of 2.45GHz. It has a 128-bit ROM for storing the ID with no write-read and no anti-collision capabilities. Its unique ID numbers can be used to individually identify trillions of trillions of objects with no duplication. Moreover with a size of 0.4mm square, the µ-chip is small enough to be attached to a variety of minute objects including embedding in paper.
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