DOUBLE LAYER MEMS DEVICES
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United States of America Patent
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Issued Date -
Aug 29, 2024
app pub date -
Feb 23, 2024
filing date -
Feb 27, 2023
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Abstract
A MEMS device is provided that includes a handle layer having a cavity and a suspension structure, a first device layer including a static electrode, a second device layer including a seismic element moveably suspended above the first device layer and a cap layer. The seismic element acts as the moveable electrode or the seismic element is mechanically coupled to move with the moveable electrode. The handle layer, the first device layer, the second device layer and the cap layer, a first electrically insulating layer between the handle layer and the first device layer, and a second electrically insulating layer between the first device layer and the second device layer form an enclosure that accommodates the seismic element, the static electrode and the moveable electrode.
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