Ultrasonic transducer device, ultrasonic measurement apparatus, head unit, probe, and ultrasonic imaging apparatus

摘要

An ultrasonic transducer device includes an ultrasonic element array and a common electrode wiring. The ultrasonic element array has three ultrasonic element rows with each of the three ultrasonic element rows including a plurality of ultrasonic elements arranged along a first direction and electrically connected to each other. The three ultrasonic element rows are arranged along a second direction intersecting with the first direction. The common electrode wiring is configured and arranged to supply a common voltage to at least one of the three ultrasonic element rows. The common electrode wiring extends in the first direction and is arranged between two of the three ultrasonic element rows positioned on outer sides among the three ultrasonic element rows with respect to the second direction.

主权项

1. An ultrasonic transducer device comprising:
a substrate; an ultrasonic element array disposed on the substrate, the ultrasonic element array having at least two ultrasonic element rows each including a plurality of ultrasonic elements arranged along a first direction, the at least two ultrasonic element rows being arranged along a second direction intersecting with the first direction; a signal electrode wiring disposed on the substrate, the signal electrode wiring being configured to supply or receive signals with respect to at least one of the at least two ultrasonic element rows, the signal electrode wiring having a longitudinal wiring portion extending along the first direction; and a common electrode wiring disposed on the substrate, the common electrode wiring being configured to supply a common voltage to the at least one of the at least two ultrasonic element rows, the common electrode wiring having a longitudinal wiring portion extending along the first direction, the common electrode wiring being arranged between the at least two ultrasonic element rows with respect to the second direction, the common electrode wiring being non-connected to the rest of the at least two ultrasonic element rows, wherein the ultrasonic elements of the at least one of the at least two ultrasonic element rows are electrically disposed between the signal electrode wiring and the common electrode wiring, the longitudinal wiring portion of the common electrode wiring does not overlap with the ultrasonic elements as viewed in a thickness direction of the substrate, with the thickness direction being a normal direction of a surface of the substrate over which the ultrasonic element array are disposed, and the common electrode wiring has two terminals facing each other across the ultrasonic elements.