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

Claim 12:
13. The MEMS device according to claim 1, further comprising at least one third spacer element, which extends between the first surfaces of the first and second semiconductor bodies,
wherein the first and second semiconductor bodies and the first and third spacer elements form respective walls of a second duct that is fluidically parallel to the first duct and has a respective first opening and a respective second opening opposite to one another in the main extension direction,
the MEMS device further comprising at least one of the following:
at least one third particulate sensor, each third particulate sensor comprising a third emitter unit configured to generate respective acoustic waves in the second duct, and a third particulate-detection unit configured to detect the particulate present in the second duct, wherein the third emitter unit is on one of the first and second semiconductor bodies, and the third particulate-detection unit is on another one of the first and second semiconductor bodies, the third emitter unit and the third particulate-detection unit facing one another through the second duct, in a direction that transverses the main extension direction; and
at least one third gas sensor, each third gas sensor on the first semiconductor body or the second semiconductor body, facing the second duct, and being configured to detect the gas in the air present in the second duct.