| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an ultrasonic probe capable of satisfactorily transmitting electric signals, by preventing disconnection caused by peeling of adhesion between a piezoelectric device and a flexible board.SOLUTION: The ultrasonic probe comprises: a piezoelectric device 2 for mutual conversion between an electric signal and an ultrasonic wave; an electrode 6a formed at the piezoelectric device 2; and a flexible board 3 to connect with the electrode 6a. The flexible board 3 includes a first conductor 7-3b and a second conductor 7-3c layered on the first conductor and lower in ionization tendency than the first conductor. The second conductor 7-3c is in contact with the electrode 6a, and a portion of the first conductor 7-3b penetrates the second conductor 7-3c into contact with the electrode.</p> |
