Patent ID: 9456803
Filing Date: 2016-10-04
CPC Classification: A61B,B06B

Claim Text:
1. An ultrasonic probe comprising: a substrate having first and second cavities that are not formed of electrodes; a first ultrasonic element disposed over the substrate and overlapping with the first cavity when viewed along a thickness direction of the substrate, the first ultrasonic element including a first diaphragm facing the first cavity; and a second ultrasonic element disposed over the substrate and overlapping with the second cavity when viewed along the thickness direction of the substrate, the second ultrasonic element including a second diaphragm facing the second cavity; the substrate further having a communicating passage and an air hole, the first cavity being communicated with the second cavity through the communicating passage, the communicating passage being communicated with an outside of the substrate through the air hole, the first ultrasonic element being configured to transmit or receive ultrasonic waves, and the second ultrasonic element being configured to transmit or receive ultrasonic waves.