Method for Making a Piezoelectric Transducer,
DEPARTMENT OF THE NAVY WASHINGTON DC
Pagination or Media Count:
A mechanical and electrical connection for a piezoelectric member of polymeric material such as polyvinyldene fluoride, and method for forming such a connection. To form the connection, the piezoelectric member is first masked to prevent a preselected portion of its surface from being coated during subsequent coating operations. An electrically conductive member such as a lead wire or a solderable terminal is then attached to the nonmasked area of the piezoelectric member with adhesive such as epoxy. The masked piezoelectric member, the electrically conductive member, and incidentally the mask are then coated with a conductive coating such as sputtered gold to electrically connect the conductive member to the piezoelectric member. The mask can now be removed from the piezoelectric member if desired, although it can be left in place as a convenient vise. It the conductive member is a wire, adjacent portions of the wire additional epoxy to provide heat dissipation for and protect the electrical connection provided by the conductive coating, and to insure mechanical strength of the contact.
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