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http://dx.doi.org/10.4313/JKEM.2008.21.12.1118

The AC, DC Dielectric Breakdown Characteristics according to Dielectric Thickness and Inner Electrode Pattern of High Voltage Multilayer Ceramic Capacitor  

Yoon, Jung-Rag (삼화콘덴서공업(주) 부설연구소)
Kim, Min-Kee (삼화콘덴서공업(주) 부설연구소)
Lee, Seog-Won (호서대학교 시스템제어공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.21, no.12, 2008 , pp. 1118-1123 More about this Journal
Abstract
High voltage multilayer ceramic capacitors (MLCCs) are classified into two classes-those for temperature compensation (class I) and high dielectric constant materials (class II). We manufactured high voltage MLCC with temperature coefficient characteristics of C0G and X7R and studied the characteristics of electric properties. Also we studied the characteristics of dielectric breakdown voltage (V) as the variation of thickness in the green sheet and how to pattern the internal electrodes. The dielectric breakdown by electric field was caused by defects in the dielectric materials and dielectric/electrode interface, so the dielectric thickness increased, the withstanding voltage per unit (E) thickness decreased. To overcome this problem, we selected the special design like as floating electrode and this design affected the increasing breakdown voltage(V) and realized the constant withstanding voltage per unit thickness(E). From these results, high voltage application of MLCCs can be expanded and the rated voltage can also be develop.
Keywords
MLCC; X7R; C0G; Dielectric breakdown voltage;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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