ULTRASONIC TRANSDUCER ELEMENT UNIT, PROBE, PROBE HEAD, ELECTRONIC DEVICE, AND ULTRASONIC DIAGNOSTIC DEVICE

摘要

An ultrasonic transducer element unit includes: a substrate having openings arranged in an array pattern; an ultrasonic transducer element provided at each of the openings on a main surface of the substrate and having a first height in a vertical direction from the main surface; and a protruding portion arranged not to overlap with the ultrasonic transducer element in a planar view in a thickness direction of the substrate on the main surface of the substrate and having a second height greater than the first height in the vertical direction.