Saw device

Details Saw device Saw device

1987-05-19

1988-10-04

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310313B, 310313D, 310364, H01L 4108

Patent

active

047758147

ABSTRACT:
In a SAW device comprising a piezoelectric substrate and at least one set of metallic electrodes formed on the piezoelectric substrate, at least one set of the electrodes have a laminated structure comprised of a layer of an aluminum film added with an impurity at a concentration of 6 wt. % or less and another layer of a film of pure aluminum or aluminum added with an impurity at a concentration of 0.4 wt. % or less. The SAW device having the laminated structure of electrodes can handle high frequency electric signals of higher power and/or larger amplitudes.

REFERENCES:
patent: 4472652 (1984-09-01), Brice et al.
patent: 4489250 (1984-12-01), Ebata et al.
patent: 4635009 (1987-01-01), Ebata et al.

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