Piezoelectric crystal electrodes and method of manufacture

Details Piezoelectric crystal electrodes and method of manufacture Piezoelectric crystal electrodes and method of manufacture

1983-04-04

1984-10-23

Morgenstern, Norman

Metal working

Piezoelectric device making

427100, 427124, 427250, 427255, 4272557, 427404, 428621, 428652, 428673, 428680, 310312, 310364, 204 38B, 204385, H01L 4110

Patent

active

044779526

ABSTRACT:
An improved crystal is provided with an aluminum baseplate, a nickel plating on the aluminum baseplate, and a silver plating on the nickel plating. The nickel is plated on the aluminum baseplate before the aluminum has oxidized to provide high yields of stable crystals.

REFERENCES:
patent: 2445310 (1948-07-01), Chilowsky
patent: 2497666 (1950-02-01), Gravley
patent: 3252722 (1966-05-01), Allen
patent: 3886585 (1975-05-01), Konantz et al.
patent: 4259607 (1981-03-01), Noguchi et al.
Rennick, IEEE Transactions on Sonics and Ultrasonics, vol. SU-20, No. 4, Oct. 1973, pp. 347-354.

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