Dielectric powder, method of preparing the same, and multilayer ceramic capacitor including the same
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsTaeyoon Kim, Huieun Kim, Wonhyung Kim
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Abstract
Provided are a dielectric powder, a multilayer ceramic capacitor using the same, and a method of preparing the same, the dielectric powder including a core including barium (Ba) and titanium (Ti); a first layer disposed on at least a portion of the core; and a second layer disposed on at least a portion of the first layer, wherein at least one of the first layer and the second layer includes at least one first element selected from silicon (Si) and aluminum (Al), the first layer and the second layer include at least one second element selected from tin (Sn), copper (Cu), iron (Fe), zinc (Zn), and manganese (Mn).
Claims24
A dielectric powder, comprising
- a core comprising barium (Ba) and titanium (Ti);
- a first layer disposed on at least a portion of the core;
- and
- a second layer disposed on at least a portion of the first layer,
- wherein at least one of the first layer or the second layer comprises a first element,
- the first element is selected from the group consisting of silicon (Si) and aluminum (Al),
- the first layer and the second layer comprise a second element, and
- the second element is selected from the group consisting of tin (Sn), copper (Cu), iron (Fe), zinc (Zn), and manganese (Mn).
A multilayer ceramic capacitor, comprising
- a capacitor body comprising a dielectric layer and an internal electrode layer, and
- an external electrode disposed on an outer surface of the capacitor body,
- wherein the dielectric layer comprises a plurality of dielectric grains and a grain boundary disposed between the plurality of dielectric grains,
- at least one of the plurality of dielectric grains has a core-shell structure comprising a core portion and a shell portion disposed on at least a portion of the core portion, and
- the shell portion and the grain boundary comprise at least one first element selected from the group consisting of silicon (Si) and aluminum (Al), and at least one second element selected from the group consisting of tin (Sn), copper (Cu), iron (Fe), zinc (Zn), and manganese (Mn).
Dependencies are inferred from the claim text.