Electroding of ceramic piezoelectric transducers

Details Electroding of ceramic piezoelectric transducers Electroding of ceramic piezoelectric transducers

1998-03-03

2000-03-14

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310328, 310334, H01L 4108

Patent

active

060377070

ABSTRACT:
In the embodiments described in the specification, electrodes are bonded to the surface of a ceramic piezoelectric layer by supporting electrodes having a reduced dimension on a flexible dielectric film and placing the dielectric film under tension to expand the film and the electrodes sufficiently to conform the electrodes to the desired electrode pattern on the ceramic piezoelectric layer. The electrodes are then bonded to the piezoelectric layer with an adhesive bonding agent under pressure applied hydraulically so as to be distributed uniformly throughout the surface of the piezoelectric layer. In one embodiment the dielectric film also carries conductor arrays for connecting the electrodes to remote driver chips at locations spaced from the surface of the piezoelectric layer.

REFERENCES:
patent: 2287950 (1942-06-01), Tibbetts
patent: 4404489 (1983-09-01), Larson, III et al.
patent: 4618797 (1986-10-01), Cline
patent: 4680595 (1987-07-01), Cruz-Uribe et al.
patent: 4769882 (1988-09-01), Rosen et al.
patent: 5504388 (1996-04-01), Kimura et al.
patent: 5834882 (1998-11-01), Bishop

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