Ultrasonic transducer and its method of manufacture

Details Ultrasonic transducer and its method of manufacture Ultrasonic transducer and its method of manufacture

1980-12-08

1984-02-28

Wong, Peter S.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310327, 310336, H04R 1700

Patent

active

044343841

ABSTRACT:
An ultrasonic transducer and its method of fabrication wherein bonding between an impedance matching layer on one side of a piezoelectric layer and a support layer on the other side of the piezoelectric material is made by providing onto each material a smooth, thin gold film on the smooth surfaces of the layers which are to be in contact with one another in the assembled transducer. The layers are bonded to each other by the gold films under moderate temperature and pressure to form the transducer. Sawing of the impedance matching and piezoelectric layers into a plurality of parallel transducers attached to the support layer forms an array.

REFERENCES:
patent: 3066232 (1962-11-01), Branson
patent: 3798473 (1974-03-01), Murayama et al.
patent: 3846649 (1974-11-01), Lehmann et al.

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