Fingerprint recognition: Leti exceeds FBI requirements
Categorie(s) : Innovation & Society, News, Research
Published : 4 December 2017
The eight partners of the EU PiezoMAT project, coordinated by Leti, achieved resolutions twice as high as what the FBI requires for fingerprint recognition. The project resulted in a prototype fingerprint recognition sensor with 250 pixels 4 microns in diameter; each pixel is made up of a bunch of piezoelectric nanowires on silicon. When a finger is placed on the sensor, local deformation of the nanowire network generates an electric potential.
Leti fabricated the sensor in a cleanroom leveraging developments on the nanowire growth layer and the contact lines. The technology can achieve resolutions in excess of 1,000 dpi, distinguishing a fingerprint’s tiniest details like pores.