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US 2026/0193137 A1Published application
Dielectric composition with high-temperature stability
AssigneeAmotech Co., Ltd.
InventorsHeerim KIM, Soomin OH, Junsuh YU, Tonggi KIM, Yeonsoo CHUNG
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Abstract
Disclosed is a dielectric composition including a barium titanate-based base material major component and a minor component. The dielectric composition includes any one of oxides and carbonates of at least Yb element among oxides and carbonates of Mg, Si, V, Mn and Cr, Ba and Yb elements. A dielectric material formed by sintering the dielectric composition satisfies the X8R properties specified by the EIA specification.
Claims11
A dielectric composition comprising:
- a barium titanate-based base material major component;
- and
- a minor component,
- wherein the minor component includes at least one of a first minor component including at least one of oxides and carbonates of fixed-valance acceptor element including Mg;
- a second minor component including at least one selected from the group consisting of oxides, carbonates and glass of Si element;
- a third minor component including at least one of oxides and carbonates of V element;
- a fourth minor component including at least one selected from the group consisting of oxides and carbonates of variable-valence acceptor element including at least one of Mn, Cr, Fe, Ni, Co, Cu and Zn;
- a fifth minor component including at least one selected from the group consisting of oxides and carbonates of Ba element;
- and a sixth minor component including at least one selected from the group consisting of oxides and carbonates of Yb element;
- the at least one minor component includes the sixth minor component;
- and
- a content of the Yb element included in the sixth minor component is from 0.4 parts by mole to 14 parts by mole with respect to 100 parts by mole of the base material major component.
9 more elements
A method for preparing a dielectric composition, the method comprising:
- preparing a barium titanate-based base material major component;
- preparing at least one minor component including, among a first minor component including at least one of oxides and carbonates of fixed-valance acceptor element including Mg;
- a second minor component including at least one selected from the group consisting of oxides, carbonates and glass of Si element;
- a third minor component including at least one of oxides and carbonates of V element;
- a fourth minor component including at least one selected from the group consisting of oxides and carbonates of variable-valence acceptor element including at least one of Mn, Cr, Fe, Ni, Co, Cu and Zn;
- a fifth minor component including at least one selected from the group consisting of oxides and carbonates of Ba element;
- and a sixth minor component including at least one selected from the group consisting of oxides and carbonates of Yb element, the sixth minor component;
- preparing a mixture including the base material major component and the at least one minor component;
- and
- baking the mixture,
- wherein a content of the Yb element included in the sixth minor component is from 0.4 parts by mole to 14 parts by mole with respect to 100 parts by mole of the base material major component.
8 more elements
Dependencies are inferred from the claim text.