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X7R용 적층 칩 세라믹 캐패시터 조성의 희토류 첨가에 따른 유전 특성

The Effect of Rare-Earth Additives on Dielectric Properties of X7R MLCC Composition

  • 발행 : 2003.12.01

초록

Effects of E$_2$O$_3$. HO$_2$O$_3$ and Dy$_2$O$_3$ addition on dielectric properties of non-reducible BaTiO$_3$ based X7R dielectrics with Ni electrode have been studied in a reduced atmosphere. As the content of rare-earth with E$_2$O$_3$. HO$_2$O$_3$, Dy$_2$O$_3$ was less than 3wt%, The TCC(Temperature Capacitance Change) and insulation resistance characteristics were improved by compensate the oxygen vacancies due to occupy either the Ba or Ti site. We developed the composition of X7R (EIA standard) for higher capacitance MLCC which had high reliability electric properties by the addition of Er ion into BaTiO$_3$ + MgO + Y2O$_3$ + MnO + (Ba$\sub$0.4/Ca$\sub$0.6/)SiO$_3$ composition.

키워드

참고문헌

  1. 전기전자재료학회논문지 v.13 no.1 AgPd 내부전극을 이용한 적층형 압전 액츄에이터 제조 임인호;윤현상;박종주;백동수;박창엽
  2. J. Kor. Ceram. Soc. v.40 no.7 Effect of additives on dielectric properties smf microstructure of MLCC X7R composition Hwan Moon;Jung Rag Yoon;Tak-Serk Chung https://doi.org/10.4191/KCERS.2003.40.7.644
  3. Jpn. J. Appl. Phys. v.42 no.1 Base-metal electrod-multilayer ceramic capacitors: past, present and future perspectives Hiroshi Kishi;Youichi Mizuno;Hirokazu Chazono https://doi.org/10.1143/JJAP.42.1
  4. J. Eur. Ceram. Soc. v.19 The cffect of rare-earth (La, Sm, Dy,Ho and Er) and Mg on the microstructure in BaTiO₃ H.Kishi;N.Kohzu;J.Sugino;H.Ohsato;Y.lguchi;T.Okuda https://doi.org/10.1016/S0955-2219(98)00370-7
  5. J. Am. Ceram. Soc. v.84 no.9 Roles of Ba/Ti Ratios in the Dielectric Properties of BaTiO₃Ceramics Jung Kun Lee;Kug Sun Hong;Jin Wook Jang
  6. Key Enginccring Materials Effect of the microstructurc on dielectric properties for BaTiO₃-Based MLC with Ni electrod Y.Okino;N.Konzu;Y.Mizuno;M.Chazono;H.Kishi
  7. Journal of the Caramic Society of Japan v.109 no.10 Effect of Dy doping on resistance degardation of (Ba)(Ti,Zr)O₃sintered in reducing atmosphere under highly accelerated life test Wen-Hsi Lee;Detler Hennings;Ying-Chieh Lee https://doi.org/10.2109/jcersj.109.1274_823
  8. Mutilayer ceramic capacitor processing academy MLCC의 박층 대용량화 기술동향 및 고 전계하의 BaTiO₃세라믹스의 유전거동에 관한 연구 김종희

피인용 문헌

  1. Effect of Tm2O3addition on dielectric property of barium titanate ceramics for MLCCs vol.20, pp.1, 2010, https://doi.org/10.6111/JKCGCT.2010.20.1.025