Double thickness mode energy trapped piezoelectric resonating de

Details Double thickness mode energy trapped piezoelectric resonating de Double thickness mode energy trapped piezoelectric resonating de

1984-08-21

1986-04-08

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310366, H01L 4108

Patent

active

045815569

ABSTRACT:
A piezoelectric resonating device utilizes double thickness vibration mode of the energy-trapped type and comprises a piezoelectric plate, input and output electrodes disposed at one surface of the piezoelectric plate and a common ground electrode disposed at the other surface of the plate. The common ground electrode is disposed to face against the input and output electrodes and the input and output electrodes are formed by a plurality of electrode segments. A plurality of piezoelectric resonating segments are coupled together each comprising the respective electrode segments and the common ground electrode.

REFERENCES:
patent: 3697788 (1972-10-01), Parker et al.
patent: 4356421 (1982-10-01), Shimizu et al.
patent: 4365181 (1982-12-01), Yamamoto
patent: 4469976 (1984-09-01), Scott
patent: 4481488 (1984-11-01), Dworsky
Quartz Uni-Wafer Filters, A Thin Film Device, by D. R. Curren et al., Electronic Research Division, Clevite Corp., Clev. Ohio, 1964.
Western Electronic Show and Convention, Aug. 25-28, 1964, (seven pages).

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