Dielectric grains of multilayered capacitor
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsYongju Yoo, Myungwoo Lee, Haesol Jung, Jinseong Kim, Jaemin Han, Seungjun Hong
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Abstract
Provided is a multilayered capacitor, including a capacitor body including a dielectric layer and an internal electrode, and an external electrode disposed outside the capacitor body, wherein the dielectric layer includes a plurality of dielectric grains containing barium titanate as a primary component, at least one of the plurality of dielectric grains has a core-shell structure, the average mole ratio of barium to titanium (Ba/Ti mole ratio) in the core of the dielectric grain is 0.9975 to 1.0055, and the average number of cores per unit area (1 μm×1 μm) in the dielectric layer is 25 to 35.
Claims20
A multilayered capacitor, comprising:
- a capacitor body including a dielectric layer and an internal electrode;
- and
- an external electrode disposed outside the capacitor body,
- wherein the dielectric layer includes a plurality of dielectric grains containing barium titanate as a primary component,
- at least one of the plurality of dielectric grains has a core-shell structure including a core and a shell,
- an average mole ratio of barium to titanium (Ba/Ti mole ratio) in the core of the dielectric grain is 0.9975 to 1.0055,
- and an average number of cores per unit area of 1 μm×1 μm in the dielectric layer is 25 to 35.
A multilayered capacitor, comprising:
- a capacitor body including a dielectric layer and an internal electrode;
- and
- an external electrode disposed outside the capacitor body,
- wherein the dielectric layer includes a plurality of dielectric grains containing barium titanate as a primary component,
- at least one of the plurality of dielectric grains has a core-shell structure including a core and a shell,
- an average mole ratio of barium to titanium (Ba/Ti mole ratio) in the core of the dielectric grain is 0.9975 to 1.0055,
- an average number of the cores per unit area of 1 μm×1 μm in the dielectric layer is 27 to 35,
- a ratio of an average area of the shell included in one dielectric grain having a core-shell structure to an average area of one dielectric grain having the core-shell structure is 30% to 50%.
Dependencies are inferred from the claim text.