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http://dx.doi.org/10.4313/JKEM.2009.22.6.495

Effect of Ceramic Powder Content and Shape on the Electrical Properties of Ceramic(BaTiO3)-polymer(Epoxy) Composite for Embedded Capacitors  

Han, Jeong-Woo (삼화콘덴서공업 연구소)
Yoon, Jung-Rag (삼화콘덴서공업 연구소)
Je, Hae-June (한국과학기술연구원 에너지재료연구단)
Lee, Dong-Ho (한국과학기술연구원 에너지재료연구단)
Lee, Kyung-Min (삼화콘덴서공업 연구소)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.22, no.6, 2009 , pp. 495-500 More about this Journal
Abstract
The ceramic($BaTiO_3$)-polymer(epoxy) composites have been widely investigated as dielectric materials for embedded capacitors in printed circuit boards (PCBs). The dielectric properties of $BaTiO_3$/epoxy composites prepared using the agglomerated $BaTiO_3$ particles were investigated in the present study. The dielectric constants of the composites prepared using the agglomerated $BaTiO_3$ particles were about 2 times higher than those of the composites with the dispersed $BaTiO_3$ particles. The insulation resistance of the composites prepared using the agglomerated $BaTiO_3$ particles were lower than those of the composites with dispersed $BaTiO_3$ particles. As a result, there is tradeoff between high dielectric constant and insulation resistance in the $BaTiO_3$/epoxy composites. So it is important to select proper agglomerated or dispersed $BaTiO_3$ particles in accordance with needs.
Keywords
Embedded capacitor; $BaTiO_3$; Dielectric constant; Insulation resistance;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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