Patent ID: 9554775
Date: 2017-01-31
CPC Classifications: A61B,B06B,G01S,G03B,H01L

Claim:
1. An ultrasonic transducer element chip comprising: a substrate defining an opening; an ultrasonic transducer element disposed at a position corresponding to the opening in a thickness direction of the substrate; and a reinforcing member connected to the substrate to cover the opening, the reinforcing member defining a ventilation passage from the opening to an outside of the substrate, the substrate defining an additional opening with an additional ultrasonic transducer element being disposed at a position corresponding to the additional opening in the thickness direction of the substrate, the reinforcing member being bonded to a partition wall section of the substrate between the opening and the additional opening, and a wall thickness of the partition wall section being smaller than a wall height of the partition wall section.