发明名称 Multilayer ceramic capacitor and method of manufacturing the same
摘要 A multilayer ceramic capacitor includes a multilayer body including a plurality of stacked dielectric layers including a dielectric ceramic that includes a plurality of crystal grains and a plurality of internal electrodes disposed at a plurality of interfaces between the dielectric layers, and external electrodes. The multilayer body includes a Ba and Ti containing perovskite compound, La, Mg and Mn, and satisfies conditions such that in a case in which a content of Ti is set to 100 molar parts, a fraction of each content of La, Mg and Mn relative to the content of Ti is such that La is about 1.2 to about 6.0 molar parts, Mg is about 0.5 to about 5.0 molar parts and Mn is about 1.0 to about 3.0 molar parts, and an average number of crystal grains included in each of the dielectric layers in the stacking direction is one or more to three or less.
申请公布号 US9362053(B2) 申请公布日期 2016.06.07
申请号 US201414583923 申请日期 2014.12.29
申请人 Murata Manufacturing Co. Ltd. 发明人 Okamoto Takafumi
分类号 C04B35/00;H01G4/12;H01G4/012;H01G4/248;H01G4/30;H01G13/04 主分类号 C04B35/00
代理机构 Keating & Bennett, LLP 代理人 Keating & Bennett, LLP
主权项 1. A multilayer ceramic capacitor comprising: a multilayer body including a plurality of stacked dielectric layers including a dielectric ceramic that includes a plurality of crystal grains and a plurality of internal electrodes disposed at a plurality of interfaces between the dielectric layers; and an external electrode provided on an outer surface of the multilayer body and electrically connected to some of the plurality of inner electrodes; wherein the multilayer body includes a Ba and Ti containing perovskite compound, and La, Mg and Mn; in a case in which a content of Ti is set to 100 molar parts, a fraction of each content of La, Mg and Mn relative to the content of Ti is such that La is about 1.2 to about 6.0 molar parts, Mg is about 2.4 to about 5.0 molar parts and Mn is about 1.0 to about 3.0 molar parts; and an average number of crystal grains included in each of the dielectric layers in the stacking direction is one or more to three or less.
地址 Kyoto JP