In 2006, Hitachi developed a 0.15mm-sized RFID chip
9 days ago
- #Microtechnology
- #RFID
- #Hitachi
- Hitachi developed the world's smallest and thinnest RFID IC chip measuring 0.15 x 0.15 mm and 7.5µm thick.
- The new chip is a smaller version of the existing 0.4 x 0.4 mm µ-Chip, maintaining the same functionality.
- SOI technology was used to reduce the distance between circuit elements, enabling higher integration.
- Compared to the 0.3mm IC chip, the new chip has 1/4 the surface area and 1/8th the thickness.
- Productivity is increased by more than four times due to the smaller size allowing more chips per wafer.
- The µ-Chip uses radio waves (2.45 GHz) to transmit a unique 128-bit ID number, ensuring high authenticity.
- Used in the 2005 World Exposition admission system with no confirmed forgeries and minimal recognition errors.
- Potential applications include security, transportation, amusement, traceability, and logistics.
- The chip features double-surface electrodes for easy connection with external antennas.
- Results were presented at the IEEE International Solid-State Circuits Conference (ISSCC 2006).