Mother piezoelectric element, laminated piezoelectric element, and manufacturing method for laminated piezoelectric element
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United States of America Patent
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Feb 9, 2021
Grant Date -
Jan 11, 2018
app pub date -
Sep 8, 2017
filing date -
Mar 30, 2015
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Abstract
The structure of a mother piezoelectric element allows a polarization process to be performed on the mother body before the individual piezoelectric elements are cut from the mother piezoelectric element. The mother piezoelectric element includes a plurality of first internal electrodes which are provided on at least one first surface and a plurality of second internal electrodes which are provided on at least one second surface. Each of the first and second internal electrodes is led out to any of first to fourth side surfaces of a mother piezoelectric body. The plurality of first internal electrodes are electrically connected to each other on a first surface and the plurality of second internal electrodes are electrical connected to each other on a second surface. All the first internal electrodes in the mother piezoelectric body are electrically connected to each other, and all the second internal electrodes in the mother piezoelectric body are electrically connected to each other.
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