| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a dielectric ceramic which can achieve a laminated ceramic capacitor which has excellent reliability, particularly excellent service life properties in a moisture and load test and a high temperature load test even if a dielectric ceramic layer is made thin. <P>SOLUTION: The dielectric ceramic comprises a BaTiO<SB>3-</SB>based material as the main component, and comprises, as auxiliary components, a rare-earth element(s) R (R denotes at least one kind selected from Nd, Eu, Gd, Tb, Dy, Ho, Er, Yb and Y), M (M denotes at least one kind selected from Mg, Mn, Ni, Co, Cu, Al, Mo, W and V), SiO<SB>2</SB>and CaO. In the crystal grains comprised in the dielectric ceramic, the piece ratio of the crystal grains 11 in which Si is present in solid solution is ≥5%. <P>COPYRIGHT: (C)2011,JPO&INPIT |
