Crystal cut angles for lithium tantalate crystal for novel surfa

Details Crystal cut angles for lithium tantalate crystal for novel surfa Crystal cut angles for lithium tantalate crystal for novel surfa

1990-11-30

1992-01-14

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310360, 252 629, 29 2535, H01L 4108

Patent

active

050813897

ABSTRACT:
A Lithium Tantalate crystal, defined by the Euler angles lambda (.lambda.) equal to about 0.degree. and mu (.mu.) equal to about 90.degree. with an acoustic wave propagation direction angle theta (.theta.) in the range of plus 130.degree. to plus 150.degree. and preferably equal to about plus 141.25.degree., offers unique properties for surface acoustic wave device applications.

REFERENCES:
patent: 3644761 (1972-02-01), Doi et al.
patent: 4001767 (1977-01-01), Slobodnik, Jr.
patent: 4159435 (1979-06-01), Lewis
patent: 4245200 (1981-01-01), Takahashi et al.
patent: 4489250 (1984-12-01), Ebata et al.
patent: 4755314 (1988-07-01), Sakaguchi

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