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US 11,538,631 B2Granted
Dielectric composition and multilayered electronic component comprising the same
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsTae Young Ham, Ji Hong Jo, Seung In Baik, Hyung Soon Kwon
Life of this patent
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Abstract
A dielectric composition includes a main ingredient having a perovskite structure represented by ABO3, where A is at least one of Ba, Sr, and Ca and B is at least one of Ti, Zr, and Hf, and a first accessory ingredient. The first accessory ingredient comprises 0.1 mole or more of a rare earth element, 0.02 mole or more of Nb, and 0.25 mole or more and 0.9 mole or less of Mg, a sum of contents of the rare earth element and Nb is 1.5 mole or less.
Claims18
A dielectric composition, comprising:
- a main ingredient having a perovskite structure represented by ABO3, where A is at least one selected from the group consisting of barium (Ba), strontium (Sr), and calcium (Ca) and B is at least one selected from the group consisting of titanium (Ti), zirconium (Zr), and hafnium (Hf), and a first accessory ingredient,
- wherein the first accessory ingredient comprises 0.1 mole or more of a rare earth element, 0.02 mole or more of niobium (Nb), and 0.25 mole or more and 0.9 mole or less of magnesium (Mg), based on 100 mole of the main ingredient,
- wherein a sum of contents of the rare earth element and Nb is 1.5 mole or less, based on 100 mole of the main ingredient, and
- wherein the rare earth element is dysprosium (Dy).
1 more element
A multilayer electronic component, comprising:
- a body including a dielectric layer and an internal electrode;
- and
- an external electrode disposed on the body and connected to the internal electrode,
- wherein the dielectric layer comprises a dielectric composition,
- wherein the dielectric composition comprises a main ingredient having a perovskite structure represented by ABO3, where A is at least one of barium (Ba), strontium (Sr), and calcium (Ca) and B is at least one of titanium (Ti), zirconium (Zr), and hafnium (Hf), and a first accessory ingredient,
- wherein the first accessory ingredient comprises 0.1 mole or more of a rare earth element, 0.02 mole or more of niobium (Nb), and 0.25 mole or more and 0.9 mole or less of magnesium (Mg), and a sum of contents of the rare earth element and Nb is 1.5 mole or less, based on 100 mole of the main ingredient,
- wherein the rare earth element is dysprosium (Dy).
4 more elements
A dielectric composition, comprising:
- a main ingredient having a perovskite structure represented by ABO3, where A is at least one selected from the group consisting of barium (Ba), strontium (Sr), and calcium (Ca) and B is at least one selected from the group consisting of titanium (Ti), zirconium (Zr), and hafnium (Hf), and a first accessory ingredient,
- wherein the first accessory ingredient comprises 0.1 mole or more of a rare earth element, 0.02 mole or more of niobium (Nb), and 0.25 mole or more and 0.7 mole or less of magnesium (Mg), based on 100 mole of the main ingredient,
- wherein a sum of contents of the rare earth element and Nb is 1.5 mole or less, based on 100 mole of the main ingredient.
Dependencies are inferred from the claim text.