Title :
Low firing Z5U relaxor multilayer ceramic capacitor
Author :
Chen, Gung-Fu ; Fu Shen-Li
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
fDate :
12/1/1988 12:00:00 AM
Abstract :
A low firing Z5U multilayer ceramic capacitor (MLC) based on the low-firing dielectrics of Pb(Fe2/3W1/3)0.41 (Fe1/2Nb1/2)0.49 Ti0.1O3-Bi2O3/Li2 O was fabricated. The prepared Z5U MLC can be sintered at temperature as low as 830°C for 2 h. Such a low firing temperature makes it possible to use a high silver content or 100% silver conductors as the internal electrode. Consequently, capacitor cost becomes lower. Dielectric properties of fabricated MLC are fairly stable against the drift of sintering temperature. Fabricated 0.1-μF 1206 size 50-V Z5U MLC features a high volumetric efficiency (25 μF/cm3), low-loss tangent (<0.5%), high insulation resistance (>104 MΩ), low aging rate (<1.0%/decade), and higher working voltage
Keywords :
capacitors; ceramics; sintering; 0.1 muF; 2 h; 50 V; 830 degC; Pb(Fe2/3W1/3)0.41(Fe1/2 Nb1/2)0.49 Ti0.1O3Bi 2O3-Li2O; aging rate; capacitor cost; high insulation resistance; internal electrode; low firing Z5U multilayer ceramic capacitor; low-firing dielectrics; low-loss tangent; sintering temperature; volumetric efficiency; working voltage; Capacitors; Ceramics; Conductors; Dielectrics; Firing; Iron; Niobium; Nonhomogeneous media; Silver; Temperature;
Journal_Title :
Components, Hybrids, and Manufacturing Technology, IEEE Transactions on
