Murata Manufacturing Co., Ltd.

Yukie Watanabe

Akio Masunari

Shinobu Chikuma

Nobuyuki Koizumi

Satoshi Muramatsu

Kosuke Onishi

Kazuhisa Uchida

Ryo Nishimura

In a multilayer ceramic electronic component, a first auxiliary electrode layer spaced away from a second internal electrode layer and exposed to a first end surface is on a same plane as a ceramic layer on which the second internal electrode layer is located, a second auxiliary electrode layer spaced away from a first internal electrode layer and exposed to a second end surface is on a same plane as the ceramic layer on which the first internal electrode layer is located, a first via conductor is at a central portion in a width direction of the first internal electrode layer and the first auxiliary electrode layer and exposed to the first end surface, and a second via conductor is at a central portion in a width direction of the second internal electrode layer and the second auxiliary electrode layer and exposed to the second end surface.

Multilayer ceramic electronic component including via conductors not exposed to principal surfaces

A multilayer ceramic capacitor includes a ceramic body including ceramic layers, first internal electrodes, and second internal electrodes laminated in a height direction, a first external electrode on at least part of a first end surface and on part of a first main surface and not on a second main surface, the first external electrode being electrically connected to the first internal electrodes, a second external electrode on at least part of a second end surface and on part of the first main surface and is not on the second main surface, the second external electrode being electrically connected to the second internal electrodes, at least two penetration portions penetrating the ceramic body between the first and second main surfaces, and a reinforcing layer on at least part of the second main surface, the reinforcing layer covering the at least two penetration portions exposed from the ceramic body.

Multilayer ceramic capacitor

A multilayer ceramic capacitor includes a multilayer body including dielectric ceramic layers and internal electrode layers laminated alternately in a lamination direction, and a pair of external electrodes on both end portions in the length direction of the multilayer body and respectively connected to the internal electrode layers. The pair of external electrodes each include a base region covering at least each of the first and second end surfaces and connected to the internal electrode layers, and a cover region on the base region to cover the base region. The cover region includes maximum thickness portions each including a maximum thickness in the cover region, in a region corresponding to the ranges of about ±10 μm in the lamination direction centered around internal electrode layers at both outermost ends in the lamination direction among the internal electrode layers.

A multilayer ceramic capacitor includes a multilayer body including dielectric ceramic layers and internal electrode layers laminated alternately in a lamination direction, and a pair of external electrodes on both end portions in the length direction of the multilayer body and respectively connected to the internal electrode layers. The pair of external electrodes each include a base region covering at least each of the first and second end surfaces, connected to the internal electrode layers, and including Cu as a main component, a cover region on the base region to cover the base region, and including Ag as a main component, and a reaction region between the base region and the cover region including Cu included in the base region and Ag included in the cover region reacting with each other.

A multilayer ceramic electronic component includes a multilayer body including layered ceramic layers and layered inner electrode layers and having a rectangular parallelepiped shape, and outer electrodes covering both end surfaces of the multilayer body and extending from both end surfaces to cover at least a portion of a first main surface of the multilayer body. The multilayer ceramic capacitor includes an insulating layer continuously extending from a ceramic layer at the first main surface of the multilayer body so as to cover end edge portions of both the outer electrodes located on the first main surface of the multilayer body, and t2>t1 is satisfied.

Multilayer ceramic electronic component

A multilayer ceramic electronic component includes a multilayer body including layered ceramic layers and layered inner electrode layers and having a rectangular parallelepiped shape, and outer electrodes covering both end surfaces of the multilayer body and extending from both end surfaces to cover at least a portion of a first main surface of the multilayer body. The multilayer ceramic capacitor includes an insulating layer continuously extending from a ceramic layer at the first main surface of the multilayer body so as to cover end edge portions of both the outer electrodes located on the first main surface of the multilayer body, and t&#x3e;tis satisfied.

A multilayer ceramic capacitor includes a ceramic body including a stack of dielectric layers and internal electrodes and including main surfaces facing each other in a stacking direction, lateral surfaces facing each other in a width direction, and end surfaces facing each other in a length direction, and an external electrode electrically connected with the internal electrodes on the end surfaces. The external electrode includes an end surface covering portion covering each of the end surfaces, and a main surface covering portion covering portions of the main surfaces. The end surface and main surface covering portions each include a base electrode layer covering the ceramic body, and a plating layer covering the base electrode layer. The end surface covering portion further includes, between the base electrode layer and the plating layer, a sintered metal layer including a component different from that of the base electrode layer.

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Nagaokakyo, Japan

Yukie Watanabe