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 |