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

Claim 0:
1. A device, comprising:
a substrate including a first surface, a second surface facing away from 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 aligned with the opening, the MEMS die being spaced apart from the second surface of the substrate by a cavity, the MEMS die overlapping the opening in the substrate, and the MEMS die including:
a third surface facing the second surface of the substrate, the cavity extending from the third surface of the MEMS die to the second surface of the substrate; and
a plurality of sidewalls transverse to the third surface;

an ASIC die coupled to the second surface of the substrate, the ASIC die including a sidewall spaced laterally apart from the MEMS die;
a space between the ASIC die and the MEMS die separating the sidewall of the ASIC die from the MEMS die; and
a molding compound covering the plurality of sidewalls of the MEMS die and defining sides of the cavity and covering the sidewall of the ASIC die and filling the space between the ASIC die and the MEMS die, and the MEMS die being within the molding compound overlapping the cavity and spaced apart from the second surface of the substrate by the cavity.