Multilayer ceramic capacitor
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United States of America Patent
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Nov 28, 2017
Grant Date -
Jun 9, 2016
app pub date -
Nov 9, 2015
filing date -
Dec 4, 2014
priority date (Note) -
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Abstract
A ceramic body includes outer layer portions of about 15 μm or more and about 25 μm or less in thickness outside an inner layer portion where internal electrodes are stacked with dielectric ceramic layers interposed therebetween, the inner layer portion includes inner cover electrodes opposed to the internal electrode located outermost in the stacking direction with the dielectric ceramic layers interposed therebetween, the outer layer portions include outer cover electrodes opposed to the inner cover electrodes with the dielectric ceramic layers interposed therebetween, the inner cover electrodes have a coverage of about 75% or more and about 100% or less, the outer cover electrodes have a coverage of about 50% or more and about 70% or less, and boundary layers containing Mg and Mn are provided at the boundaries between the outer cover electrodes and the dielectric ceramic layers located outside the electrodes.
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