Electrical properties and distortion characteristics of MLCCs with composite dielectric material

Author

Miyauchi, Mari ; Takano, Kosuke ; Sato, Akira ; Nakano, Yukie

Author_Institution

TDK Corp., Chiba

fYear

2007

fDate

27-31 May 2007

Firstpage

541

Lastpage

542

Abstract

The electrical properties and distortion characteristics of multilayer ceramic capacitors (MLCCs) with composite dielectric material, which consisted of ferroelectric and paraelectric phases were studied. In composite dielectrics, BaTiO₃ (BTO) was used for the ferroelectric phase, while SrTiO₃ (STO) and CaTiO₃ CTO were used for the paraelectric phases. The dielectric ceramics with composite structure of MLCC were prepared with these perovskite grains and additives. The temperature dependence of dielectric constant of the MLCC could be controlled by the volume ratio of ferroelectric and paraelectric phases. The distortion characteristic of MLCC with composite structure was smaller than that of BTO.

Keywords

barium compounds; calcium compounds; ceramic capacitors; composite materials; dielectric materials; ferroelectric capacitors; ferroelectric ceramics; permittivity; strontium compounds; BaTiO₃; CaTiO₃; SrTiO₃; composite dielectric material; dielectric constant; distortion characteristics; ferroelectric phases; multilayer ceramic capacitors; paraelectric phases; perovskite grains; Additives; Capacitors; Ceramics; Dielectric constant; Dielectric materials; Ferroelectric materials; Nonhomogeneous media; Phase distortion; Temperature control; Temperature dependence;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 2007. ISAF 2007. Sixteenth IEEE International Symposium on

Conference_Location

Nara

ISSN

1099-4734

Print_ISBN

978-1-4244-1334-8

Electronic_ISBN

1099-4734

Type

conf

DOI

10.1109/ISAF.2007.4393323

Filename

4393323