Ultrasonic transducer
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United States of America Patent
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-
Mar 22, 2016
Grant Date -
Jun 5, 2014
app pub date -
Dec 3, 2012
filing date -
Dec 3, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
An ultrasound transducer and methods of fabricating and using the ultrasound transducer. The ultrasound transducer includes a composite layer having a first surface and comprising a plurality of piezoelectric elements separated by isolating material filled kerfs. The composite layer is configured so that the first surface includes an exposed face of each element of the plurality of piezoelectric elements. The transducer further includes a plurality of electrodes defined on the first surface, the electrodes having boundaries configured so that none of the exposed faces are in contact with more than one of the plurality of electrodes. The electrodes may be defined in a conductive layer deposited on the first surface of the composite body by forming a channel in the conductive layer that is aligned vertically with the dielectric kerfs. The transducer may be used to scan a treatment region with both HIFU and imaging ultrasound signals.
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