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Ceramic raw material powder, multilayer ceramic capacitor and manufacturing method of multilayer ceramic capacitor
Ceramic raw material powder includes: a main phase having a perovskite structure, wherein elements acting as a donor and an acceptor are solid-solved in B sites of the perovskite structure, wherein a relationship of (concentration of the element acting as a donor)×(valence of the element acting as a donor−4)<(concentration of the element acting as an acceptor)×(4−valence of the element acting as an acceptor) is satisfied, in a center region of each grain of the ceramic raw material powder, wherein a relationship of (concentration of the element acting as a donor)×(valence of the element acting as a donor−4)>(concentration of the element acting as an acceptor)×(4−valence of the element acting as an acceptor) is satisfied, in a circumference region of each grain of the ceramic raw material powder.
Ceramic raw material powder, multilayer ceramic capacitor and manufacturing method of multilayer ceramic capacitor
Ceramic raw material powder includes: a main phase having a perovskite structure, wherein elements acting as a donor and an acceptor are solid-solved in B sites of the perovskite structure, wherein a relationship of (concentration of the element acting as a donor)×(valence of the element acting as a donor−4)<(concentration of the element acting as an acceptor)×(4−valence of the element acting as an acceptor) is satisfied, in a center region of each grain of the ceramic raw material powder, wherein a relationship of (concentration of the element acting as a donor)×(valence of the element acting as a donor−4)>(concentration of the element acting as an acceptor)×(4−valence of the element acting as an acceptor) is satisfied, in a circumference region of each grain of the ceramic raw material powder.
Ceramic raw material powder, multilayer ceramic capacitor and manufacturing method of multilayer ceramic capacitor
TANIGUCHI KATSUYA (Autor:in) / SOGABE TSUYOSHI (Autor:in)
01.03.2022
Patent
Elektronische Ressource
Englisch
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