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US 7,247,978 B2Granted
Acceleration tolerant piezoelectric resonator
AssigneeRakon Limited
InventorsBrent J. Robinson, Michael McIlroy, Olexandre A. Boyko, Phil Brownie
Life of this patent
Estimating the term…
Abstract
The invention relates to piezoelectric resonators. An interposer element is used between a resonating plate and the resonator package to provide improved (i.e. reduced) acceleration sensitivity. The interposer element is preferably of similar thermal expansion characteristics to the resonating plate. Electrical connection to the resonating plate from the exterior of the package is preferably provided via the interposer element.
Claims18
A resonator comprising:
- an enclosure having an exterior and an interior;
- an electrically conductive path from the exterior to the interior;
- an interposer;
- a plurality of first joints fixing the interposer to the interior of the enclosure;
- a piezoelectric element;
- and
- a plurality of second joints fixing the piezoelectric material to the interposer,
- wherein the piezoelectric element is electrically connected to the electrically conductive path.
5 more elements
A resonator comprising:
- an enclosure having an exterior and an interior;
- an electrically conductive path from the exterior to the interior;
- an interposer;
- a plurality of first joints fixing the interposer to the interior of the enclosure, at least two of the first joints being electrically conductive;
- a piezoelectric element;
- and
- a plurality of second joints fixing the piezoelectric material to the interposer, at least two of the second joints being electrically conductive;
- wherein the interposer and the piezoelectric element are electrically connected via the first and second joints to the electrically conductive path.
5 more elements
A resonator comprising:
- an enclosure having an exterior and an interior;
- an electrically conductive path from the exterior to the interior;
- an interposer fixed to the interior of the enclosure;
- a piezoelectric element fixed to the interposer;
- wherein the piezoelectric element is electrically connected to the electrically conductive path;
- and
- wherein the interposer and the piezoelectric element have substantially the same thermal expansion characteristics.
4 more elements
Dependencies are inferred from the claim text.