Abstract:
A multilayer ceramic capacitor includes: a ceramic body having first and second surfaces opposing each other and third and fourth surfaces connecting the first and second surfaces to each other; a plurality of internal electrodes disposed in the ceramic body, exposed to the first and second surfaces, and each having one end exposed to the third or fourth surface; and first and second side margin portions disposed on the first and second surfaces and covering exposed surfaces of the internal electrodes. A dielectric composition contained in the first and second side margin portions is different from a dielectric composition contained in the ceramic body, the first and second side margin portions contain a barium titanate-based base material powder and magnesium (Mg), manganese (Mn), and aluminum (Al) as accessory ingredients, and a content ratio of manganese (Mn) to magnesium (Mg), manganese (Mn), and aluminum (Al) satisfies 0.316≤Mn/(Mn+Mg+Al)≤0.500, based on a molar content of Mn, Mg and Al in the first and second side margin portions.
Abstract:
A coil electronic component includes a base layer, a stacked structure of a plurality of coil patterns disposed on the base layer, and a buildup layer disposed between at least two coil patterns of the plurality of coil patterns, the buildup layer at least partially covering the coil patterns and having sintering properties different from those of the base layer.
Abstract:
An inductor includes a body having a coil portion disposed therein, and a protective layer disposed on a surface of the body. The body includes an active portion in which a coil portion is disposed, and a cover portion disposed on upper and lower surfaces of the coil portion. A grain size in the protective layer is greater than a grain size in the body.
Abstract:
A dielectric composition and a multilayer ceramic capacitor containing the same are provided. The dielectric composition contains an oxide of Ba and Ti as a main ingredient, and the main ingredient is represented by (Ba1-x), (Na, Ca)x)TiO3, where 0.005≦x≦0.035 and 0.994
Abstract:
A multilayer ceramic electronic component includes: a capacitor body including a plurality of dielectric layers and a plurality of internal electrodes; with external electrodes disposed on the capacitor body and electrically connected to the internal electrodes, wherein the capacitor body includes an active region in which internal electrodes having different polarities from each other overlap each other to form capacitance, and a margin part defined as region except for the active region. A concentration of an additive element in the margin part is higher than the concentration of the additive element in the active region, and the margin part has a concentration gradient of the additive element from a surface of the capacitor body toward the active region.
Abstract:
A method of manufacturing a multilayer ferrite bead includes steps of: preparing ferrite sheets having internal electrodes formed on surfaces thereof; forming a ferrite laminate by stacking the ferrite sheets; forming a groove by pressurizing a central portion of the ferrite laminate; and forming external electrodes on the ferrite laminate.