Patent ID: 11897763
Assignee: STMICROELECTRONICS S.R.L.
Field: Micro-structural and nano-technology (Chemistry)
Classification: CPC B | IPC B

Claim 13:
14. A device, comprising:
a substrate including a first surface, a second surface opposite to the first surface, and an opening that extends through the substrate from the first surface to the second surface;
a micro-electromechanical system (MEMS) die overlaps that opening, the MEMS die including a sensor component and a plurality of sidewalls transverse to the first surface of the substrate;
a cavity overlaps the opening, is in fluid communication with the opening and the sensor component of the MEMS die, is between the MEMS die and the first surface of the substrate, and separates the MEMS die from the substrate and extends from the first surface of the substrate to the MEMS die; and
a molding compound covers the first surface of the substrate, covers the plurality of sidewalls of the MEMS die, and defines a plurality of sidewalls of the cavity, the plurality of sidewalls of the cavity are coplanar with the plurality of sidewalls of the MEMS die.