Piezoelectric tone generator and a process for producing it

Details Piezoelectric tone generator and a process for producing it Piezoelectric tone generator and a process for producing it

1991-05-10

1993-03-23

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310321, 310322, 310323, 310328, 29 2535, H01L 4108

Patent

active

051967545

ABSTRACT:
To produce a piezoelectric tone generator, a layer of filler-free bonding agent whose dynamic viscosity is 800 to 18,000 mPa.multidot.s is applied between a metallized carrier plate and a piezoceramic wafer. The package composed of carrier plate, bonding layer and ceramic plate is pressed together, the quantity of bonding agent being chosen to be so large that during pressing a bead covering the edge of the ceramic wafer is formed. The bonding layer is cured thereafter, firstly catalytically or thermally and then by UV irradiation.

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