A HIGH FREQUENCY, HIGH RESOLUTION 2D PHASED ARRAY ULTRASONIC TRANSDUCER

Abstract: a 2d phased array ultrasound device possessing ultrahigh spatial resolutions (<90 �m) and high centre frequency (25 mhz) including: a 2d array of piezo crystal elements formed from the kerfing of a single crystal; a series of conductive electrodes formed on opposed sides of the piezo crystal elements; a series of front matching layers; and a backing unit comprising backing filler material and a series of flexible circuit layers sandwich together to interconnect the back surface electrodes of the piezo crystal elements.

Inventor(s): Danyang WANG, Weichang WU, Jiyang DAI, Sean Suixiang LI

CPC Classification: B06B1/0629 (METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, {e.g.} FOR PERFORMING MECHANICAL WORK IN GENERAL (for particular applications, see the relevant subclasses, e.g. , , ; measurement of mechanical vibrations ; in direction finding, locating, distance or velocity measuring ; {generating seismic energy }; control of mechanical vibrations in general ; sound-producing devices, e.g. bells, sirens, whistles , {e.g. methods or devices for transmitting, conducting, or directing sound in general }; generation of electrical oscillations ; electromechanical resonators in general ; electromechanical transducers {for communication techniques, e.g. microphones, speakers} ))

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