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http://dx.doi.org/10.9797/TSISS.2014.10.2.061

Study on behavior of multilayer ceramic capacitor caused by piezoelectricity  

Park, No-Cheol (School of Mechanical Engineering, Yonsei univerity)
Ko, Byung-Han (School of Mechanical Engineering, Yonsei univerity)
Park, Young-Pil (School of Mechanical Engineering, Yonsei univerity)
Ahn, Younggyu (Samsung Electromechanics, LCR division)
Publication Information
Transactions of the Society of Information Storage Systems / v.10, no.2, 2014 , pp. 61-64 More about this Journal
Abstract
Vibration and acoustic noise arise from the Multilayer Ceramic Capacitor (MLCC) because of the piezoelectric effect of dielectric substance which consists of $BaTiO_3$. However, the phenomenon is not analyzed clearly because the MLCC shows different behavior compare with ordinary piezoelectric substance like PZT. Thus, MLCC was tested under the several DC bias conditions and heat treatment effect was also tested and analyzed in this paper. From the test, MLCC shows not only piezoelectric effect but also another physical phenomenon like electrostriction. Also, it was verified that DC bias affect to the piezoelectric constant of MLCC.
Keywords
MLCC; Pizoelectricity; DC bias; Heat treatment;
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  • Reference
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