发明名称 積層セラミックコンデンサ
摘要 A multilayer ceramic capacitor that is highly resistant to insulation degradation under high-temperature load includes an inner ceramic layer that has a composition mainly composed of a perovskite-type compound containing Ba and Ti, at least one of Nb and Ta, contains Mn and Al, and optionally contains Mg and a rare-earth element that is at least one of Y, Gd, Tb, Dy, Ho, and Er, with a content of Ti being 100 parts by mole, and (a) a total of Nb and Ta is from about 0.2 to about 1.5 part by mole, (b) Mg is not more than about 0.2 part by mole including 0 part by mole, (c) Mn is from about 1.0 to about 3.5 parts by mole, (d) Al is from about 1.0 to about 4.0 parts by mole, and (e) the rare-earth element is not more than about 0.05 part by mole including 0 part by mole. Furthermore, an average number of particles per one layer of the inner ceramic layer is not more than 3.
申请公布号 JP5888469(B2) 申请公布日期 2016.03.22
申请号 JP20150526213 申请日期 2014.06.04
申请人 株式会社村田製作所 发明人 岡本 貴史
分类号 H01G4/12;C04B35/468;H01B3/12;H01G4/30 主分类号 H01G4/12
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