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

Volume

11

Issue

4

fYear

1988

fDate

12/1/1988 12:00:00 AM

Firstpage

600

Lastpage

603

Abstract

A low firing Z5U multilayer ceramic capacitor (MLC) based on the low-firing dielectrics of Pb(Fe_2/3W_1/3)_0.41 (Fe_1/2Nb_1/2)_0.49 Ti_0.1O₃-Bi₂O₃/Li₂O 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(Fe_2/3W_1/3)_0.41(Fe_1/2Nb_1/2)_0.49 Ti_0.1O₃Bi 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;

fLanguage

English

Journal_Title

Components, Hybrids, and Manufacturing Technology, IEEE Transactions on

Publisher

ieee

ISSN

0148-6411

Type

jour

DOI

10.1109/33.16703

Filename

16703