Acoustic wave devices employing surface skimming bulk waves

Details Acoustic wave devices employing surface skimming bulk waves Acoustic wave devices employing surface skimming bulk waves

1995-03-29

1996-04-09

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310360, 310361, 333154, H01L 4108

Patent

active

RE0352047

ABSTRACT:
An acoustic wave device employing surfaces skimming bulk waves comprises a piezo electric substrate having a flat surface which carries an input transducer and an output transducer for respectively lanuching and receiving acoustic waves into and from the bulk of the substrate. The substrate may be of quartz, lithium tantalate, or lithium niobate and has the flat surface orientated so that a surface skimming bulk wave is launched without generation of surface acoustic waves.

REFERENCES:
patent: 3680009 (1972-07-01), Slobodnik, Jr.
patent: 3886484 (1975-05-01), Dlas et al.
patent: 3995740 (1976-01-01), Karbel
Nakamura et al,: "Sh-Type and Rayleigh-Type Surface Waves on Rotated Y-Cut LiTsO.sub.3 "; Ultrasonic Symposium Proceedings; 1977; pp. 819-822 (With Translation).

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