Capacitor
AssigneeKYOCERA Corporation
InventorsMaiko Nagayoshi, Nobuyoshi Fujikawa
Life of this patent
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Abstract
A capacitor according to an embodiment of the present disclosure is provided with a capacitor body in which a plurality of dielectric layers and a plurality of internal electrode layers are alternately laminated. The dielectric layers each includes crystal particles, grain boundaries and metal particles. An average particle size of the metal particles is smaller than an average particle size of the crystal particles and larger than an average width of interfacial grain boundaries among the grain boundaries. Observation of the longitudinal cross section of the dielectric layer shows that the metal particles are distributed along the width direction and the thickness direction of the dielectric layer.
Claims4
A capacitor comprising:
- a capacitor body;
- a plurality of dielectric layers;
- and
- a plurality of internal electrode layers that are alternately laminated with the plurality of dielectric layers within the capacitor body, wherein:
- the dielectric layers each comprises crystal particles, grain boundaries, and metal particles,
- the metal particles have an average particle size that is smaller than an average particle size of the crystal particles and larger than an average width of interfacial grain boundaries among the grain boundaries,
- the metal particles are distributed along a width direction and a thickness direction of the dielectric layer in a longitudinal cross-section of the dielectric layer, and
- at least one of the dielectric layers comprises a portion in which a plurality of the metal particles are aligned in an overlapping manner in the thickness direction of the dielectric layer.
Dependencies are inferred from the claim text.