Dielectric composition and multilayer capacitor
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsJae Sung Park, Jeong Yun Park, Hyoung Uk Kim, Jong Han Kim, Chung Eun Lee
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Abstract
A dielectric composition and a multilayer capacitor including the same are provided. The dielectric composition includes a BaTiO3-base main component, a first subcomponent including an Nb component and a Gd component, a second subcomponent including an Mg component, and a third subcomponent including a Ba component and a Ca component. The first subcomponent is included in an amount of 4 moles or less per 100 moles of the main component. In the first subcomponent, a molar content of Nb and a molar content of Gd satisfy 0.33≤Nb/Gd, and in the third subcomponent, a molar content of Ba and a molar content of Ca satisfy 0.2≤Ca/(Ba+Ca).
Claims14
A dielectric composition comprising:
- a BaTiO3-base main component;
- a first subcomponent including a niobium (Nb) component and a gadolinium (Gd) component;
- a second subcomponent including a magnesium (Mg) component;
- and
- a third subcomponent including a barium (Ba) component and a calcium (Ca) component,
- wherein the dielectric composition comprises the first subcomponent in an amount of 4 moles or less per 100 moles of the main component,
- in the first subcomponent, a molar content of Nb and a molar content of Gd satisfy 0.33≤Nb/Gd, and
- in the third subcomponent, a molar content of Ba and a molar content of Ca satisfy 0.2≤Ca/(Ba+Ca).
A multilayer capacitor comprising:
- a body and an external electrode disposed outside of the body,
- wherein the body includes a laminate including a plurality of dielectric layers and a plurality of internal electrodes stacked with the dielectric layer interposed therebetween, and a side margin portion covering at least one side of side surfaces of the laminate to which the plurality of internal electrodes are exposed, and
- the side margin portion includes a dielectric comprising:
- a BaTiO3-base main component:
- a first subcomponent including niobium (Nb) and gadolinium (Gd) components;
- a second subcomponent including an Mg component;
- and a third subcomponent including a barium (Ba) component and a calcium (Ca) component,
- wherein the dielectric comprises the first subcomponent in an amount of 4 moles or less per 100 moles of the main component,
- a molar content of Nb and a molar content of Gd in the first subcomponent satisfy 0.33≤Nb/Gd, and
- a molar content of Ba and a molar content of Ca in the third subcomponent satisfy 0.2≤Ca/(Ba+Ca).
Dependencies are inferred from the claim text.