Ceramic electronic device
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United States of America Patent
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Nov 28, 2023
Grant Date -
Dec 1, 2022
app pub date -
Apr 25, 2022
filing date -
May 31, 2021
priority date (Note) -
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Abstract
A ceramic electronic device includes a multilayer chip in which a plurality of dielectric layers and a plurality of internal electrode layers are stacked. The plurality of internal electrode layers include Au. Each of the plurality of internal electrode layers includes an Au-containing layer of which an Au concentration with respect to all detected elements is 5 at % or more, on an interface between the each of the plurality of internal electrode layers and a dielectric layer next to the each of the plurality of internal electrode layers. A relationship of C≤500×t/T is satisfied when a thickness of the each of the plurality of internal electrode layers is T nm, a thickness of the Au-containing layer is t nm, and an Au concentration with respect to a total of Ni and Au in a whole of the each of the plurality of internal electrode layers is C at %.
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