Single-side connected transducer

Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices

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Details

310365, 310366, 310800, H01L 4108

Patent

active

044699760

ABSTRACT:
A transducer is provided having interconnections between a conductive member and one side of a heat sensitive piezoelectric substrate such as PVF.sub.2 to or from which electric signals flow. The interconnections are positioned on one side of the substrate with the opposite side having a metalization under the interconnection attachment positions and in a continuous region therebetween. The interconnection includes adhesive material such as epoxy disposed between and attaching an electrically conductive member to one side of the substrate and a single contiguous electrically conductive coating applied to adjacent portions of these two members to electrically connect them. Since both interconnections are positioned on one side of the substrate the transducer is adhesively fastenable to operational structure with a strong bond line, permits lead attachment after mounting and prevents lead shortout. Various electrode shapes, sizes and patterns may be constructed to allow power channeling and to produce focusing of the transducer signal.

REFERENCES:
patent: 2875355 (1959-02-01), Petermann
patent: 3940637 (1976-02-01), Ohigashi et al.
patent: 3971250 (1976-07-01), Taylor
patent: 4071785 (1978-01-01), Yoshida et al.
patent: 4184095 (1980-01-01), Stacchiotti et al.
patent: 4218631 (1980-08-01), Yamaguchi
patent: 4325060 (1982-04-01), Purtell
patent: 4339683 (1982-07-01), Scott et al.
patent: 4356421 (1982-10-01), Shimizu et al.
PVF.sub.2 Transducers, by Shaw et al, Proceedings of IEEE Ultrasonics Symium, Boston, Ma., Nov. 5-7, 1980.

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