Film capacitor
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United States of America Patent
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Sep 6, 2016
Grant Date -
Dec 4, 2014
app pub date -
Oct 18, 2012
filing date -
Nov 11, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A film capacitor includes a capacitor element including a dielectric film and a pair of electrode layers facing each other across the dielectric film, and a pair of end-surface electrodes provided on both ends of the capacitor element. At least one electrode layer of the pair of electrode layers mainly contains aluminum and further contains zinc and magnesium. A peak of an atomic concentration of magnesium of the electrode layer is located at a position closer to a surface of the electrode layer than a peak of an atomic concentration of zinc of the electrode layer. The film capacitor has a high humidity resistance.
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