MEMS DEVICE, MANUFACTURING METHOD THEREOF, AND ELECTRONIC APPARATUS
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United States of America
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Issued Date -
Jan 16, 2025
app pub date -
Oct 27, 2022
filing date -
Oct 27, 2022
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Abstract
A MEMS device includes: a dielectric substrate; a driving electrode, first and second reference electrodes on the dielectric substrate; a first dielectric layer covering the driving electrode; and a membrane bridge on a side of the first dielectric layer away from the dielectric substrate, where a first gap is between the first reference electrode and the driving electrode; a second gap is between the second reference electrode and the driving electrode; and a thickness of a part of the first dielectric layer at each of the first and second gaps is greater than a thickness of the driving electrode; and/or, a second dielectric layer is on a side of a bridge deck of the membrane bridge close to the dielectric substrate, and an orthographic projection of the second dielectric layer on the dielectric substrate covers at least an orthographic projection of the driving electrode on the dielectric substrate.
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