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MEMS device mechanism enhancement for robust operation through severe shock and acceleration
MEMS device mechanism enhancement for robust operation through severe shock and acceleration
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机译:MEMS装置机制增强,可通过剧烈的冲击和加速实现稳定的运行
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摘要
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摘要
A micro-electro-mechanical systems (MEMS) device comprises at least one proof mass configured to have a first voltage and a motor motion in a first horizontal direction. At least one sense plate is separated from the proof mass by a sense gap, with the sense plate having an inner surface facing the proof mass and a second voltage different than the first voltage. A set of stop structures are on the inner surface of the sense plate and are electrically isolated from the sense plate. The stop structures are configured to prevent contact of the inner surface of the sense plate with the proof mass in a vertical direction. The stop structures have substantially the same voltage as that of the proof mass, and are dimensioned to minimize energy exchange upon contact with the proof mass during a shock or acceleration event.
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