Nanowire matrices for high-resolution fingerprint sensing

The EU project »PiezoMAT« addresses novel scalable technologies for the fabrication of ultra-high-resolution fingerprint sensors, whose resolution is supposed to be sufficient to detect level 3 minutiae such as pores and ridge edges of skin. Such a level of resolution is accessible only by using high-density arrays of directly addressable nanoscale pixels such as piezo-electrical ZnO nanorod arrays.

Project title PiezoMAT − High-resolution Fingerprint Sensing with Vertical Piezoelectric Nanowire Matrices  
Project duration 2013 − 2016  
Funding source European Union  
Project partners
  • CEA Leti
  • Leipzig University
  • Tyndall
  • KTU
  • Specific Polymers
Internal project manager Dr. Vadim Lebedev  
  • Single-crystalline ZnO nano-pixels with lateral spacing below 5 µm
  • Lateral resolution of 1500 − 5000 dpi
  • Pressure sensing and digitizing with 8 bit resolution
  • Fingerprint sensors with an active area of ~1.5 x 1.5 cm2

This project has received funding from the European Union’s Horizon 2020 Research and Innovation programme under grant agreement No 611019.