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

Claim 15:
16. A method for manufacturing a MEMS device, comprising:
forming a first spacer element and a second spacer element between respective first surfaces of a first semiconductor body and of a second semiconductor body, wherein the first and second semiconductor bodies and the first and second spacer elements form walls of a first duct, which has a main extension direction and has a first opening and a second opening opposite to one another in the main extension direction; and
forming at least one of:
a first particulate sensor including a first emitter unit configured to generate an acoustic wave in the first duct and a first particulate-detection unit configured to detect a particulate present in the first duct, wherein the first emitter unit is on the first semiconductor body and the first particulate-detection unit is on the second semiconductor body, the first emitter unit and the first particulate-detection unit facing one another through the first duct; and
a first gas sensor, on one of the first semiconductor body or the second semiconductor body, facing the first duct, and configured to detect a gas in air present in the first duct.