Patent ID: 11898989
Assignee: STMICROELECTRONICS S.R.L.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 1:
2. The MEMS device according to claim 1, wherein the first emitter unit and the first particulate-detection unit each comprises a respective membrane suspended over a respective buried cavity in the first semiconductor body and in the second semiconductor body, respectively, at the respective first surfaces, each membrane comprising a respective actuation unit,
wherein the actuation unit of the first emitter unit is configured to cause the membrane of the first emitter unit vibrate piezoelectrically to generate acoustic waves in a fluidic medium present in the first duct, and
wherein the actuation unit of the first particulate-detection unit is configured to detect a variation of vibration of the membrane of the first particulate-detection unit.