| 摘要 |
PURPOSE: A dielectric ceramic composition and manufacturing method of ceramic capacitors using the composition are provided. The ceramic composition having excellent dielectric properties(low dielectric loss, high dielectric constant and stable temperature characteristics) in the range of high frequency enables low temperature sintering so that it can save manufacturing cost. CONSTITUTION: The composition comprises SrxBa(1-x)(ZryTi(1-y))O3 as a main component, 0.05-15wt.% of MnO2, 0.001-5wt.% of one or more kinds of Bi2O3, PbO, Sb2O3, and 0.5-15wt.% of glass composition in ZnO-SiO2 system or LiO2-Al2O3-SiO2 system, where 0.8<=x<=1, 0.9<=y<=1. The multilayered ceramic capacitors are produced through a conventional process, ball-milling, forming to a dielectric sheet(11), forming an electrode(12) made of non-metallic or carbon-based materials, multi-layering the sheets, pressing and sintering at 925-1080deg.C in a reductive(N2-H2) or inert gas atmosphere.
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