Capacitive device and resonance circuit
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United States of America Patent
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May 26, 2015
Grant Date -
May 10, 2012
app pub date -
Jul 27, 2010
filing date -
Jul 28, 2009
priority date (Note) -
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Abstract
To provide a capacitive device capable of accurately securing a capacitance value, a variable capacitive device capable of sufficiently securing a capacity variability rate, and a resonance circuit that uses the capacitive devices. A capacitive device includes a capacitive device body constituted of a dielectric layer and at least a pair of capacitive device electrodes that sandwich the dielectric layer and cause a desired electric field in the dielectric layer; and stress adjustment portions to adjust a stress caused in the dielectric layer of the capacitive device body.
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