Patent ID: 11910160
Assignee: SHINSUNG SOUNDMOTION CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 0:
1. A MEMS acoustic sensor comprising:
a substrate having a cavity;
a back plate supported on the substrate and comprising a plurality of through holes;
an electrode formed on an inner surface of the back plate;
at least one anchor protruding from the back plate toward the substrate;
a diaphragm supported by the at least one anchor, the diaphragm being deformable by a sound wave introduced through the cavity; and
a plurality of connection pads exposed to an upper surface of the back plate,
wherein the diaphragm comprises an extension extending upward along the at least one anchor from an upper surface of the diaphragm, and the plurality of connection pads comprise a first connection pad in electrical contact with an upper end of the extension and exposed to an outer surface of the back plate by passing through the back plate, and a second connection pad in electrical contact with the electrode and exposed to the outer surface of the back plate by passing through the back plate.