Patent ID: 11889765
Assignee: STMICROELECTRONICS S.R.L.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 16:
17. A MEMS device, comprising:
a semiconductor substrate including a first surface, a second surface opposite to the first surface, and a side surface that extends from the first surface to the second surface;
a first cantilevered member protrudes from the side surface, the first cantilevered member includes:
a first free end at which the first cantilevered member terminates;
a first piezoelectric layer including a third surface, a fourth surface opposite to the third surface, a first sidewall extends from the third surface to the fourth surface and is transverse to the third surface and the fourth surface, and a second sidewall extends from the third surface to the fourth surface, is transverse to the third surface and the fourth surface, and is opposite to the first sidewall, the first piezoelectric layer extends from the side surface of the semiconductor substrate to the first free end;
a first collector layer on the first sidewall, the first collector layer extends from the side surface of the semiconductor substrate to the first free end;
a second collector layer on the second sidewall, the second collector layer extends from the side surface of the semiconductor substrate to the first free end;
a first sub-portion on the first collector layer; and
a second sub-portion on the second collector layer, the second sub-portion is opposite to the first sub-portion about the first piezoelectric layer, the first collector layer, and the second collector layer.