Dielectric composition for multilayer ceramic capacitor,...

Details Dielectric composition for multilayer ceramic capacitor,... Dielectric composition for multilayer ceramic capacitor,...

2005-04-05

2005-04-05

Thomas, Eric (Department: 2831)

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

C361S311000, C501S139000, C156S089120

Reexamination Certificate

active

06876538

ABSTRACT:
Disclosed herein are a multilayer ceramic capacitor, a dielectric composition capable of sintering at a lower temperature and having a small variation in dielectric constant, a multilayer ceramic capacitor using the same, and a method thereof. The dielectric composition includes BaTiO3, MgCO3, Y2O3, Cr2O3, Mn2V2O7, and xBaO-yZrO2-zSiO2acting as a sintering agent (where 0.1≦x≦0.3, 0.1≦y≦0.3 and 0.4≦z≦0.8, x+y+z=1), wherein when representing the composition with the formula aBaTiO3-bMgCO3-cY2O3-dCr2O3-e(Mn2V2O7)-f(xBaO-yZrO2-zSiO2), the ratio of the components satisfies the conditions of a=100, 0.1≦b≦3.0, 0.3≦c≦2.0, 0.05≦d≦0.2, 0.01≦e≦1.5, 0.5≦f≦3.0 based on the molar ratio. When manufacturing a multilayer ceramic capacitor of a higher capacitance, which is formed to have the thin layer structure of 4 μm or less, short circuits between internal electrodes and the deterioration in capacitance due to massing of the electrodes into ball at the ends may be remarkably reduced.

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