发明名称 Multilayer ceramic capacitor
摘要 A multilayer ceramic capacitor includes a body and first and second outer electrodes. The body includes a multilayer unit with ceramic dielectric layers and conductive layers alternately stacked on each other. The body is sectioned into a thickness-direction inner layer section that includes the multilayer unit and thickness-direction first and second outer layer sections that sandwich the thickness-direction inner layer section therebetween. A dimension of the thickness-direction second outer layer section is greater than a dimension of the thickness-direction first outer layer section. A conductive layer closest to a first principal surface and a conductive layer closest to a second principal surface are first and second outermost conductive layers, respectively. A curving amount of an extension portion of the second outermost conductive layer is greater than that of an extension portion of the first outermost conductive layer.
申请公布号 US9099246(B1) 申请公布日期 2015.08.04
申请号 US201414529599 申请日期 2014.10.31
申请人 Murata Manufacturing Co. Ltd. 发明人 Kitano Shota;Sugita Hiroaki;Yamada Mayumi;Adachi Hirobumi
分类号 H01G4/30;H01G4/06;H01G4/005;H01G4/12 主分类号 H01G4/30
代理机构 Keating & Bennett, LLP 代理人 Keating & Bennett, LLP
主权项 1. A multilayer ceramic capacitor comprising: a body including conductive layers and ceramic dielectric layers alternately stacked on each other in a thickness direction; and a plurality of outer electrodes disposed on portions of the body; wherein the body includes first and second principal surfaces opposing each other in the thickness direction, first and second end surfaces opposing each other in a length direction, and first and second side surfaces opposing each other in a width direction; the plurality of outer electrodes includes a first outer electrode covering at least the first end surface and a second outer electrode covering at least the second end surface; some of the conductive layers include a first effective portion and a first extension portion extending from the first effective portion toward the first end surface and connecting to the first outer electrode, and others of the conductive layers include a second effective portion and a second extension portion extending from the second effective portion toward the second end surface and connecting to the second outer electrode; the body includes a multilayer unit including an effective portion defined by the first and second effective portions and portions of the ceramic dielectric layers stacked therebetween; the body includes a thickness-direction first outer layer section that includes one of the ceramic dielectric layers and that defines the first principal surface, a thickness-direction second outer layer section that includes another of the ceramic dielectric layers and that defines the second principal surface, and a thickness-direction inner layer section that includes the multilayer unit and that is disposed between the thickness-direction first and second outer layer sections; a dimension of the thickness-direction second outer layer section in the thickness direction is greater than a dimension of the thickness-direction first outer layer section in the thickness direction; one of the first and second extension portions of a first outermost conductive layer of the conductive layers that is closest to the first principal surface is inclined toward the second principal surface; one of the first and second extension portions of a second outermost conductive layer of the conductive layers that is closest to the second principal surface is inclined toward the first principal surface; and an amount of inclination of the second outermost conductive layer is greater than an amount of inclination of the first outermost conductive layer.
地址 Kyoto JP