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Fabrication and Analysis of Multilayer Ceramic Capacitors for Medium and High Voltage

중, 고압용 적층 세라믹 캐패시터 제작 및 분석

  • 윤중락 (삼화콘덴서공업(주) 부설연구소) ;
  • 김민기 (삼화콘덴서공업(주) 부설연구소) ;
  • 이헌용 (명지대학교 전기전자공학부) ;
  • 이석원 (호서대학교 전기정보제어공학부)
  • Published : 2005.08.01

Abstract

In the fabrication and design of MLCCs (Multilayer Ceramic Capacitors) with Ni inner electrode for medium and high voltage, reliability and dielectric breakdown mode have been investigated. For thickness of green sheet, the relationship between the rated voltage versus the thickness of green sheet. Increasing the thickness of green sheet increases the dielectric breakdown voltage. However, a practical limit to this linear relationship occurs at 30 urn and above. As the thickness of green sheet increased, dielectric breakdown voltage and weibull coefficient is increased, but abruptly decrease at 30 urn and 36 urn. When 24 urn of green sheet thickness, weibull coefficient and dielectric breakdown voltage were 13.58 and 70 V/um respectively. The results enabling the MLCCs to demonstrate high levels of reliability at medium and high voltage.

Keywords

References

  1. 위성권, '적층세라믹콘덴서(MLCC) 제조 기술 동향', 전기전자재료학회지, 13권, 7호, p. 1, 2000
  2. 'DC, AC and Pulse Load of Multilayer Ceramic Capacitors', KOA speer electronics. INC
  3. 이석원, 윤중락, 'X7R용 적층 칩 세라믹 캐패시터 조성의 희토류 첨가에 따른 유전 특성', 전기전자재료학회논문지, 16권, 12호, p. 1080, 2003
  4. 'MINITAB User's Guide #2 : Data Analysis and Quality Tools', Minitab Inc., 2000
  5. 김충혁, 정일형, 이준웅, '(Sr.Pb)$TiO_3$계 세라믹스의 전기전도 및 DC 절연파괴 특성', 전기전자재료학회논문지,5권,4호, p. 421, 1992
  6. H. Moon, J. R. Yoon, and T.-S. Chung, 'Effect of additives on dielectric properties and microstructure of MLCC X7R composition', J. Kor. Ceram. Soc, Vol. 40, No. 7, p. 644, 2003
  7. 조경호, 남효덕, 박철우, 이희영, '$BaTiO_3$ 세라 믹스의 절연파괴거동에 미치는 결정립 크기와 시편두께의 영향', 요업학회지, 33권,11호, p. 1217, 1996
  8. Shende-RV, Krueger-DS, and Rossetti-GA, 'Strontium zirconate and strontium-titanate ceramics for high-voltage applications -synthesis, processing, and dielectric-properties', J. Am. Ceram. Soc, Vol. 87, No. 7, p. 1648, 2001