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Electronic device

  • US 9,117,994 B2
  • Filed: 09/30/2013
  • Issued: 08/25/2015
  • Est. Priority Date: 10/19/2011
  • Status: Active Grant
First Claim
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1. A piezoelectric element, comprising:

  • a piezoelectric body having a mounting surface and at least one other surface;

    a plurality of first internal electrodes and a plurality of second internal electrodes alternately arranged at given intervals inside the piezoelectric body;

    a first terminal electrically connected to the plurality of first internal electrodes and formed on the at least one other surface of the piezoelectric body;

    a second terminal electrically connected to the plurality of second internal electrodes and formed on the at least one other surface;

    a reference electrode formed on the mounting surface of the piezoelectric body; and

    a third terminal electrically connected to the reference electrode and formed on the at least one other surface;

    wherein the reference electrode is maintained at a predefined DC potential.

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