Patent ID: 11962973
Assignee: INFINEON TECHNOLOGIES AG
Field: Measurement (Instruments)
Classification: CPC H  B  G | IPC B  G  H

Claim 0:
1. A combined MEMS structure comprising:
a substrate including a sound port configured to receive acoustic signals;
a first piezoelectric membrane configured to receive the acoustic signals from the sound port and comprising one or more first electrodes, the first piezoelectric membrane being affixed between a first holder and a second holder;
a second piezoelectric membrane comprising an inertial mass and one or more second electrodes, the second piezoelectric membrane being affixed between the second holder and a third holder;
a plurality of additional piezoelectric membranes configured to provide additional inertial sensor signal outputs;
a housing secured to the substrate and enclosing the first piezoelectric membrane and the second piezoelectric membrane;
an integrated circuit positioned within the housing and configured to isolate the second piezoelectric membrane from the acoustic signals received through the sound port; and
a selector circuit coupled to the first piezoelectric membrane, the second piezoelectric membrane, and the plurality of additional piezoelectric membranes, the selector circuit configured to selectively output signals received from the first piezoelectric membrane, the second piezoelectric membrane, and the plurality of additional piezoelectric membranes.