Crystal resonator with low acceleration sensitivity and method o

Details Crystal resonator with low acceleration sensitivity and method o Crystal resonator with low acceleration sensitivity and method o

1990-09-17

1992-12-01

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310312, 310361, 310365, H01L 4108

Patent

active

051681919

ABSTRACT:
In a process of producing crystal resonators in which the direction and magnitude of the gamma vector is substantially the same for each resonator, a method of altering the resonator during the process to change the resonator mass, shape, or electrode placement so as to reduce the gamma vector magnitude of each crystal. This alteration may be done by adding mass, removing mass, or both adding and removing mass, or by positioning the electrodes to selectively position the electric field in the crystal, all in order to move the location of the active region of vibration and thereby reduce the gamma vector.

REFERENCES:
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patent: 4262227 (1981-04-01), Ikeno et al.
patent: 4370584 (1983-01-01), Ikeno et al.
patent: 4418299 (1983-11-01), Momosaki
patent: 4641055 (1987-02-01), Tanaka
patent: 4642505 (1987-02-01), Arranitis
patent: 4837475 (1989-06-01), Eer Nisse et al.
patent: 4935658 (1990-06-01), Eer Nisse et al.
patent: 5022130 (1991-06-01), Eer Nisse et al.

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