Systems and methods for isolation of torque and sense capacitors of an accelerometer
First Claim
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1. A Micro Electromechanical Systems (MEMS) accelerometer device having a proof mass flexibly attached to a substrate, the device comprising:
- one or more sense capacitors formed between the proof mass and the substrate;
one or more torque capacitors formed between the proof mass and the substrate; and
an isolation device configured to electrically isolate cathodes of the sense capacitors from cathodes of the torque capacitors on the proof mass.
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Abstract
A Micro Electromechanical Systems (MEMS) accelerometer device having a proof mass flexibly attached to a substrate. The device includes one or more sense capacitors formed between the proof mass and the substrate, one or more torque capacitors formed between the proof mass and the substrate, and an isolation device that electrically isolates cathodes of the sense capacitors from cathodes of the torque capacitors on the proof mass.
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Citations
16 Claims
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1. A Micro Electromechanical Systems (MEMS) accelerometer device having a proof mass flexibly attached to a substrate, the device comprising:
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one or more sense capacitors formed between the proof mass and the substrate; one or more torque capacitors formed between the proof mass and the substrate; and an isolation device configured to electrically isolate cathodes of the sense capacitors from cathodes of the torque capacitors on the proof mass. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of making a Micro Electromechanical Systems (MEMS) accelerometer having a proof mass flexibly attached to a substrate, the method comprising:
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forming one or more sense capacitors between the proof mass and the substrate; forming one or more torque capacitors between the proof mass and the substrate; electrically isolating cathodes of the one or more sense capacitors from cathodes of the one or more torque capacitors. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification