Coupled micromachined structure
First Claim
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1. A micromachined device comprising:
- a first proof mass and a second proof mass, the first and second proof masses each having a plurality of support arms flexibly coupling the masses to a substrate; and
at least one spring element having a first end and a second end, the first end of the at least one spring element connected to the first proof mass and the second end of the at least one spring element connected to the second proof mass.
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Abstract
A suspended, coupled micromachined structure including two proof masses and multiple support arms configured to suspend the masses above a substrate and a coupling spring element having two ends. Each end of the coupling spring element may be attached to a proof mass at a point between the proof masses. The frequency response characteristics of the proof masses may be improved.
40 Citations
14 Claims
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1. A micromachined device comprising:
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a first proof mass and a second proof mass, the first and second proof masses each having a plurality of support arms flexibly coupling the masses to a substrate; and
at least one spring element having a first end and a second end, the first end of the at least one spring element connected to the first proof mass and the second end of the at least one spring element connected to the second proof mass. - View Dependent Claims (2, 3, 4)
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5. A micromachined device comprising:
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a first proof mass and a second proof mass, the first and second proof masses each having a plurality of support arms flexibly coupling the masses to a substrate; and
a plurality of spring elements, each spring element having a first end and a second end, the first end of each spring element connected to the first proof mass and the second end of each spring element connected to the second proof mass. - View Dependent Claims (6, 7)
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8. A micromachined device comprising:
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a first proof mass;
a second proof mass;
a plurality of support arms attached to the first proof mass and the second proof mass;
each of the support arms flexibly coupling the first proof mass and the second proof mass to a substrate;
at least one of the support arms including a first end coupled to the substrate and a second end coupled to the substrate;
wherein at least one of the first and the second proof masses are connected to the at least one support arm at a point between the first end and the second end of the support arm; and
at least one spring element having a first end and a second end, the first end of the at least one spring element connected to the first proof mass and the second end of the at least one spring element connected to the second proof mass. - View Dependent Claims (9, 10, 11, 13, 14)
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12. A micromachined device comprising:
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a first proof mass;
a second proof mass;
a plurality of support arms attached to the first proof mass and the second proof mass;
each of the support arms flexibly coupling the first proof mass and the second proof mass to a substrate;
at least one of the support arms including a first end coupled to the substrate and a second end coupled to the substrate;
wherein at least one of the first and the second proof masses are connected to the at least one support arm at a point between the first end and the second end of the support arm; and
a plurality of spring elements, each spring element having a first end and a second end, the first end of each spring element connected to the first proof mass and the second end of each spring element connected to the second proof mass.
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Specification