Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Impedance Spectroscopy Analysis of the Screen Printed Thick Films

스크린 프린트된 후막의 Impedance Spectroscopy 특성 분석

  • Ham, Yong-Su (Department of Electronic Materials Engineering, Kwangwoon University) ;
  • Moon, Sang-Ho (Department of Electronic Materials Engineering, Kwangwoon University) ;
  • Nam, Song-Min (Department of Electronic Materials Engineering, Kwangwoon University) ;
  • Lee, Young-Hie (Department of Electronic Materials Engineering, Kwangwoon University) ;
  • Koh, Jung-Hyuk (Department of Electronic Materials Engineering, Kwangwoon University) ;
  • Jyoung, Soon-Jong (Research Center of Energy semiconductor, Korea Electrotechnology Research Institute) ;
  • Kim, Min-Soo (Research Center of Energy semiconductor, Korea Electrotechnology Research Institute) ;
  • Cho, Kyung-Ho (Research Headquarter of the Fourth Technology, Agency for Defense Development)
  • 함용수 (광운대학교 전자재료공학과) ;
  • 문상호 (광운대학교 전자재료공학과) ;
  • 남송민 (광운대학교 전자재료공학과) ;
  • 이영희 (광운대학교 전자재료공학과) ;
  • 고중혁 (광운대학교 전자재료공학과) ;
  • 정순종 (한국전기연구원 에너지반도체센터) ;
  • 김민수 (한국전기연구원 에너지반도체센터) ;
  • 조경호 (국방과학연구소 제4기술연구본부)
  • Received : 2010.02.25
  • Accepted : 2010.05.22
  • Published : 2010.06.01
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Abstract

In this study, we fabricate 3 wt% $Li_2CO_3$ doped $(Ba,Sr)TiO_3$ thick films on the Ag/Pd bottom electrode printed $Al_2O_3$ substrates for the LTCCs (low temperature co-fired ceramics) applications. From the X-ray diffraction analysis, 3 wt% $Li_2CO_3$ doped BST thick films on the Ag/Pd printed $Al_2O_3$ substrates, which sintered at $900^{\circ}C$, showed perovskite structure without any pyro phase. The dielectric properties of 3 wt% $Li_2CO_3$ doped BST thick films are measured from 1 kHz to 1 MHz. To investigate the electrical properties of 3 wt% $Li_2CO_3$ doped BST thick films, we employ the impedance spectroscopy. The complex impedance of 3 wt% $Li_2CO_3$ doped BST thick films are measured from 20 Hz to 1 MHz at the various temperatures.

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References

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