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US 10,593,482 B2Granted
Dielectric powder and multilayer capacitor using the same
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsChang Hwa Park, Jin Woo Kim, Min Gi Sin, Byung Hyun Park, Chin Mo Kim
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Abstract
A dielectric powder includes a core-shell structure including a core region formed in an inner portion thereof and a shell region covering the core region. The core region includes barium titanate (BaTiO3) doped with a metal oxide, and the shell region is formed of a ferroelectric material.
Claims16
A dielectric powder comprising a core-shell structure including a core region formed in an inner portion thereof and a shell region covering the core region,
- wherein the core region includes barium titanate (BaTiO3) doped with a metal oxide, wherein the metal oxide comprises at least one selected from the group consisting of Dy, Ce, Al, La, Bi and Cu, and
- the shell region is formed of a ferroelectric material.
A multilayer capacitor comprising:
- a body including a plurality of dielectric layers and first and second internal electrodes alternately disposed with the dielectric layer interposed therebetween;
- and
- first and second external electrodes disposed to be electrically connected to exposed portions of the first and second internal electrodes in the body, respectively;
- wherein the dielectric layer includes a dielectric powder having a core-shell structure including a core region formed in an inner portion thereof and a shell region covering the core region,
- the core region includes barium titanate (BaTiO3) doped with a metal oxide, wherein the metal oxide comprises at least one selected from the group consisting of Dy, Ce, Al, La, Bi and Cu, and
- the shell region is formed of a ferroelectric material.
3 more elements
Dependencies are inferred from the claim text.