Relationship between Dielectric Properties and Microphonics of Mulutilayer Ceramic Capacitors

概要

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As a result of investigating the relationship between the dielectric properties of BaTiO3-based dielectrics and the microphonics of multilayer ceramic capacitors (MLCCs), it was confirmed that microphonics, electric-induced strain, and polarization have very high correlation, and piezostriction becomes dominant in electric-induced strain when high DC bias is applied to BaTiO3-based dielectrics in spite of their very low spontaneous polarizations. Dielectrics with a large paraelectric phase area in which rare-earth elements have diffused into BaTiO3 are useful for applications of MLCCs, especially under high DC bias.
Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
2006-09-30