Patent ID: 11950511
Assignee: STMICROELECTRONICS S.R.L.
Field: Chemical engineering (Chemistry)
Classification: CPC H  B  G | IPC B  G  H

Claim 11:
12. A method for manufacturing a device for emission of an ultrasound acoustic wave, comprising:
forming a package by coupling a cap on a base substrate and thereby defining a chamber in the package;
coupling a semiconductor die to the base substrate in the chamber, the semiconductor die including a semiconductor body;
forming, at least in part in the semiconductor body, a micromachined ultrasonic transducer (MUT), the forming of the MUT including:
forming a cavity in the semiconductor body;
forming a membrane suspended over the cavity; and
coupling an actuator to the membrane for generating, in use, a deflection of the membrane,

wherein said membrane is configured to have a resonance frequency that matches an acoustic resonance frequency that, during operation of the MUT, develops in said chamber of the package.