DIELECTRIC PORCELAIN COMPOSITION, MULTILAYER CERAMIC CAPACITOR USING THE SAME AND ITS MANUFACTURE

PROBLEM TO BE SOLVED: To improve relative permittivity and insulating resistance by adding Mn component and substituting Ca for a part of Ba.

SOLUTION: A dielectric layer is formed by using dielectric porcelain composition shown by a formula. In the formula, R is at least one kind out of Y and Dy, M is three-component based glass of BaO-Al2O3-SiO2, 1.00≤m×1.02, 0.001≤x≤0.05, 0.05≤y≤0.2, 0.001≤α≤0.05, 0.001≤β≤0.015, 0.01≤a≤0.5, 0<b≤0.2, and (a) and (b) are wt.% to be added when main component is made 100 wt.%. This dielectric porcelain composition has high relative permittivity and little dielectric loss factor and shows excellent insulating resistance in a reducing atmosphere. The dielectric layers and inner electrodes are alternately laminated, and a laminated member is formed. By using the laminated member, relative permittivity is increased, and miniaturization and large capacitance of a multilayer ceramic capacitor are remarkably facilitated.

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