Feasibility study of ultrasonic biometrics based on finger vessel imaging by epitaxial-PZT/Si piezoelectric micromachined ultrasonic transducer

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Human Identification Using Palm-Vein Images

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In-Air Rangefinding With an AlN Piezoelectric Micromachined Ultrasound Transducer

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Ultrasonic Fingerprint Sensor With Transmit Beamforming Based on a PMUT Array Bonded to CMOS Circuitry

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Engineering, Biomedical Engineering, Microelectromechanical Systems +16