Piezoelectric transducer, manufacturing method of...

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

Reexamination Certificate

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Reexamination Certificate

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06924587

ABSTRACT:
A piezoelectric transducer comprises: a substrate having first and second substrate electrodes forming input and output terminals, and one or more piezoelectric elements for transmitting a supersonic wave to an object to be measured and receiving a reflected wave from the object. The piezoelectric elements are arranged on the substrate and have a first surface electrode connected to the first substrate electrode and a second surface electrode connected to the second substrate electrode via a conductive member. An acoustic matching layer is superposed on the piezoelectric elements for efficiently propagating the supersonic wave on the second surface electrode. The conductive member has a thickness not more than that of the acoustic matching layer and is embedded in the acoustic matching layer.

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patent: 98019349 (1998-05-01), None

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