Patent ID: 11905164
Assignee: UPBEAT TECHNOLOGY CO., LTD
Field: Audio-visual technology (Electrical engineering)
Classification: CPC B  H | IPC B

Claim 19:
20. A manufacturing method for a micro-electro-mechanical system acoustic sensor, comprising:
forming a cantilever structure on a substrate, wherein the cantilever structure comprises a fixed end and a free cantilever portion extended from the fixed end, wherein the free cantilever portion comprises a free end, the free end and the fixed end are at opposing sides of the free cantilever portion, the free cantilever portion is capable of generating a vibration wave in an empty space; and
forming a diaphragm sensor on the substrate, wherein the diaphragm sensor comprises:
a diaphragm film;
a back plate, wherein the back plate and the diaphragm film have a first empty gap therebetween, wherein the empty space and the first empty gap are communicated to each other, the diaphragm film is adapted to receive the vibration wave generated by the free cantilever portion; and
at least one electrical contact point electrically connected to the back plate.