The dielectric porcelain constituent which the dielectric porcelain constituent, and the production manner, the dielectric porcelain and the lamination ceramic part

摘要

PROBLEM TO BE SOLVED: To obtain a dielectric porcelain composition which can be fired at 800-1,000°C, enabling interior mounting and multi-layering by simultaneous firing with a low-resistance conductor such as Cu and Ag, and from which a dielectric constant ε_r of about 15-25 is obtained so that a laminated ceramic component can be formed with an appropriate size; to provide a dielectric porcelain which has a low dielectric los tanδ (high Q value), and an absolute value of temperature coefficient τ_f of resonance frequency of ≤50 ppm/°C; and to provide a method for manufacturing the same.;SOLUTION: The dielectric porcelain composition contains 3-30 pts.wt. of lead-free low melting point glass comprising, by weight, 50-75% ZnO, 5-30% B₂O₃, 6-15% SiO₂, 0.5-5% Al₂O₃ and 3-10% BaO to 100 pts.wt. of a main component expressed by the formula: xZn₂TiO₄-(1-x-y)ZnTiO₃-yTiO₂ (wherein (x) and (y) satisfy each 0.15x0.8 and 0≤y≤0.2).;COPYRIGHT: (C)2005,JPO&NCIPI