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Laminated ceramic capacitor
laminated ceramic capacitor which has favorable moisture resistance includes an inner layer section that has dielectric ceramic layers and internal electrodes stacked alternately, and outer layer sections formed outside the inner layer section. The dielectric ceramic layers have a perovskite-type compound including a main constituent containing Ca and Zr, and an additive containing Si and Mn. The average grain size in the dielectric ceramic layers constituting the outer layer sections is smaller than the average grain size in the dielectric ceramic layers constituting the inner layer section. The Si/Mn molar ratio in the dielectric ceramic near the interfaces between the internal electrodes and the dielectric ceramic layers is ≰15.
Laminated ceramic capacitor
laminated ceramic capacitor which has favorable moisture resistance includes an inner layer section that has dielectric ceramic layers and internal electrodes stacked alternately, and outer layer sections formed outside the inner layer section. The dielectric ceramic layers have a perovskite-type compound including a main constituent containing Ca and Zr, and an additive containing Si and Mn. The average grain size in the dielectric ceramic layers constituting the outer layer sections is smaller than the average grain size in the dielectric ceramic layers constituting the inner layer section. The Si/Mn molar ratio in the dielectric ceramic near the interfaces between the internal electrodes and the dielectric ceramic layers is ≰15.
Laminated ceramic capacitor
HIRATA TOMOTAKA (author) / NISHIMURA HITOSHI (author) / ISOTA SHINYA (author) / OGURA TAKETSUGU (author) / NAITO MASAHIRO (author)
2015-12-01
Patent
Electronic Resource
English
LAMINATED CERAMIC CAPACITOR AND METHOD OF MANUFACTURING LAMINATED CERAMIC CAPACITOR
| European Patent Office | 2025