Hitachi created the world’s smallest RFID chip, the (µ-chip) mu-chip which measures 0.4mm² which is also wireless, batteryless uses an external antenna to receive and trasmit 128 bit signals to receivers nearby. Read more about the usage and how this chip would shape the world beyond tomorrow.

1. What is mu-chip (RFID: Radio Frequency IDentification)?
Hitachi’s super-mini wireless automatic recognition Integrated Circuit (IC) chip (mu-Chip) is only 0.4 mm squared. This downsizing was achieved through a change in approach by regarding the IC as a “point” instead of a “face”. As a result, it has become possible to attach our RFID tags (mu-Chips) to various materials and parts, including paper, in a manner unthinkable in the case of conventional RFID tags.
Mu-Chip Specifications:
  • Dimensions of 0.4mm squared
  • 128-bit ROM (Read Only Memory) capacity
  • 2.45 GHz frequency
  • Read range of up to 30 cm
  • Passive tag (no battery required)

Conceptual drawing

The mu-chip is actually protected by synthetic resin on the back of the external antenna.

High security

The ID data of all mu-Chip is unique and cannot be rewritten, its security is ensured. Furthermore, custom codes can be installed. ID management can be geared to the characteristics of each product.
Continue Reading Hitachi mu-Chip : World’s Smallest Wireless RFID Chip