Ultrasonic Unlock: The Innovation Behind Samsung's In-Display
Qualcomm 3D Sonic Sensor Fingerprint - System Plus Consulting
How Ultrasonic Fingerprint Sensing Works and Why it is Important
This is the new Qualcomm fingerprint scanner that could debut with the Galaxy S21
Ultrasonic fingerprint sensor using a piezoelectric micromachined ultrasonic transducer array integrated with complementary metal oxide semiconductor electronics: Applied Physics Letters: Vol 106, No 26
Ultrasonic vs Optical: What's the difference between fingerprint scanners?
Qualcomm inks deal with BOE to bring Ultrasonic Fingerprint Scanners to more phones