Method of manufacturing a stack-type piezoelectric element

Details Method of manufacturing a stack-type piezoelectric element Method of manufacturing a stack-type piezoelectric element

1990-04-18

1992-11-17

Echols, P. W.

Metal working

Piezoelectric device making

310328, H04R 1700

Patent

active

051632098

ABSTRACT:
In an overall stacked piezoelectric element, the material for the electrode was selected from aluminum, nickel and copper each alone or alloys based on aluminum, nickel or copper, and further the parts of the electrode which contact with molding resin on the side face of the stacked body and the parts which have to be insulated from the lead-out terminals were subjected to an oxidation or nitriding treatment. As the result, an improved element was obtained which is of a high reliability, suited to low voltage operation and suffers no short-circuit of the electrode even when water permeates to the side face of the stacked body during operation in humid atmosphere.

REFERENCES:
patent: 3635016 (1972-01-01), Benson
patent: 4472652 (1984-09-01), Brice et al.
patent: 4978881 (1990-12-01), Wakita et al.
Sensor Technique vol. 3, No. 12, 119837 pp. 32-33.

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