Taiyo Yuden Co., Ltd.

Yoshiaki Iijima

Takashi Sasaki

So Sato

Yasutomo Suga

Katsuo Koizumi

Sou Satou

In an exemplary embodiment, in a multilayer ceramic capacitora first insulative layer-having parts AAcovered by the first partof each external electrodeis provided on one third-direction face, while a second insulative layer-having parts AAcovered by the second partof each external electrodeis provided on the other third-direction face, of the capacitor bodyof the multilayer ceramic capacitorThe multilayer ceramic electronic component can prevent moisture intrusion into the component body as much as possible, even when the multilayer ceramic electronic component is made thin.

Multilayer ceramic electronic component

In an embodiment, a multilayer ceramic capacitorhas supplementary dielectric layers, each having a first cover partthat covers the space between two first base conductor filmson each of both height-direction faces, and second cover partsthat connect to the first cover partand also cover parts of the first base conductor films, respectively, in the length direction. External electrodeseach have a second base conductor filmattached to a one length-direction face and to one length-direction edges of two first base conductor filmson the respective height-direction faces, and a surface conductor filmattached continuously to the surface of the second base conductor filmand also to the parts of the surfaces of the two first base conductor filmsnot covered by the second cover parts

Multilayer ceramic capacitor

In an embodiment, a multilayer ceramic capacitorincludes: a first external electrodehaving a first partprovided on one height-direction face, and a second partprovided on the other height-direction face, of the capacitor body; and a second external electrodehaving a first partprovided on one height-direction face, and a second partprovided on the other height-direction face, of the capacitor body. In addition, the reference length Lof the first part, and the reference length Lof the second part, of the first external electrodesatisfy the relational expression 'L&#x3e;L,' while the reference length Lof the first part, and the reference length Lof the second part, of the second external electrodesatisfy the relational expression 'L&#x3c;L

In an embodiment, in a multilayer ceramic capacitor, a first insulative layer-having parts A, Acovered by the first partof each external electrodeis provided on one third-direction face, while a second insulative layer-having parts A, Acovered by the second partof each external electrodeis provided on the other third-direction face, of the capacitor bodyof the multilayer ceramic capacitor. The multilayer ceramic electronic component can prevent moisture intrusion into the component body as much as possible, even when the multilayer ceramic electronic component is made thin.

A laminated ceramic capacitor has a capacitor body of roughly a rectangular solid shape defined by the length, width, and height, as well as a concaved part formed at and along the edges of one side and the other side in the height direction. An external electrode has a base conductor layer whose height-direction wrap-around part is formed inside the concaved part, and a main conductor layer whose height-direction wrap-around part is formed continuously over the height-direction wrap-around part of the base conductor layer through the planar part, except for the concaved part, of one side and the other side of the component body in the height direction. The height-direction wrap-around part of the main conductor layer has a planar connecting area constituted by a surface area over the height-direction wrap-around part of the base conductor layer and a surface area over the planar part of the component body.

Laminated ceramic electronic component

In an embodiment, a multilayer ceramic capacitorhas supplementary dielectric layerscovering the spaces between two first base conductor filmson both height-direction faces of a capacitive element', respectively, in such a way that clearances CL are left between the first base conductor filmsand the supplementary dielectric layersin the length direction. External electrodeseach have a second base conductor filmand a surface conductor film, and the wraparound locationsof each surface conductor filmhave insertion partsthat fill in the clearances CL. The multilayer ceramic capacitor can mitigate deterioration in moisture resistance.

In an embodiment, a multilayer ceramic capacitoris such that: the two first base conductor films, and the supplementary dielectric layer, on each of both height-direction faces of the capacitive element', are connected to each other based on mutual bonding of the dielectric particles contained in each of them; the two first base conductor filmson each of both height-direction faces of the capacitive element&#x2032;, and the capacitive element&#x2032;, are connected to each other based on mutual bonding of the dielectric particles contained in each of them; and the supplementary dielectric layeron each of both height-direction faces of the capacitive element&#x2032;, are the capacitive element&#x2032;, are connected to each other based on mutual bonding of the dielectric particles contained in each of them.

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Takasaki, Japan

Yoshiaki Iijima