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Technical Description

Specifications of µ-chip
  • Simple Mechanism: 128-bit read only memory, no anti-collision control
  • Super-micro Chip: 0.4 mm x 0.4mm
  • Battery Less: The µ-chip a passive IC, that receives the microwave from the reader, generates electric power from the microwave, decodes its µ-chip ID and transmits it back to the reader.
  • Unique ID (µ-chip ID): Each µ-chip stores unique 128-bit data in its ROM as its ID, to distinguish it from the others.
  • Radio Frequency: 2.45 GHz
  • Maxmum Communication Length: about 25 cm (with an external antenna)
    (Reader: 300mW, 4 Pach Antenna, Circular Polarization)
  • Response Time: 20msec
Diagram


Operations
  • Interrogation: When the reader is activated by a terminal device (PC), it radiates microwave on to the µ-chip attached to a carrying article and the µ-chip returns its µ-chip ID to the reader. The carrying article may be a tag, a label or a customers products.
  • Database Query: The terminal device authenticates the µ-chip ID and uses it to retrieve information from the database about the article carrying the µ-chip. The result of the query can be displayed on the terminal device or used by a software application.
  • Database Construction: The database may be located at the site server or at the central server and stores attributes of the µ-chip carrying article. Information associated with the event of readout may be used to update the database.
  • Linking: Linking each µ-chip ID to the carrying article is performed upon application of the µ-chip to it.
    The attributes of the article at this point comprise the basic entry to the database. For efficient, automated linking process, consultation and engineering services are available.
Diagram
µ-chip
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