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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 first relationship of value Avalue B is satisfied in a circumference region of each grain of the ceramic raw material powder, and value A in the second relationship gradually decreases from the circumference region to the center, wherein value A is a value of (concentration of the element acting as a donor)×(valence of the element acting as a donor−4), and value B is a value of (concentration of the element acting as an acceptor)×(4−valence of the element acting as an acceptor).
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 first relationship of value Avalue B is satisfied in a circumference region of each grain of the ceramic raw material powder, and value A in the second relationship gradually decreases from the circumference region to the center, wherein value A is a value of (concentration of the element acting as a donor)×(valence of the element acting as a donor−4), and value B is a value of (concentration of the element acting as an acceptor)×(4−valence of the element acting as an acceptor).
Ceramic raw material powder, multilayer ceramic capacitor and manufacturing method of multilayer ceramic capacitor
TANIGUCHI KATSUYA (author) / SOGABE TSUYOSHI (author)
2023-12-05
Patent
Electronic Resource
English
| European Patent Office | 2020
| European Patent Office | 2022
| European Patent Office | 2022
| European Patent Office | 2020
European Patent Office | 2022