Murata Manufacturing Co., Ltd.

Tomochika Miyazaki

Yasuhiro Nishisaka

Shinji Otani

Seiji Koga

Yoshito Saito

Satoshi Matsuno

A multilayer ceramic capacitor includes a multilayer body including dielectric layers, internal electrode layers, and first and second end surfaces facing each other in a length direction, a first external electrode on a side of the first end surface, and a second external electrode on a side of the second end surface. The first and second external electrodes each include lower and upper electrode layers, the lower electrode layers include a metal component and a glass component, the upper electrode layers include a metal component and a glass component, and include pores, an amount of the glass component in the upper electrode layers is less than an amount of the glass component in the lower electrode layers, and a maximum inscribed circle diameter of the pores in the upper electrode layers is greater than or equal to about 0.02 μm and less than or equal to about 0.52 μm.

Multilayer ceramic capacitor

A multilayer ceramic capacitor includes a glass component of an underlying electrode layer including Zr and Ba, and in a cross-section of the multilayer ceramic capacitor, a Zr/Ba atomic number ratio is not less than about 0.03 and not greater than about 0.15. The underlying electrode layer has a glass-occupied area ratio of not less than about 18% in the cross-section of the multilayer ceramic capacitor. In a SEM image in the cross-section of the multilayer ceramic capacitor, the glass component on an imaginary line &#x3b1;, which is parallel or substantially parallel to the surface of the surface layer of the underlying electrode layer about 3 &#x3bc;m inside of the surface layer of the underlying electrode layer, is not greater than about 0.92 &#x3bc;m.

Multilayer ceramic electronic component and method of manufacturing the same

A first outer electrode and first inner electrodes are supplied with an anode potential and a second outer electrode and second inner electrodes are supplied with a cathode potential when a monolithic ceramic capacitor is mounted and in use. The first outer electrode supplied with the anode potential has a thickness that is greater than a thickness of the second outer electrode supplied with the cathode potential.

Monolithic ceramic capacitor and structure for mounting the same

A conductive paste for forming external electrodes for a multilayer ceramic electronic component. The paste contains a glass composition containing (a) BaO, (b) at least one of SrO and CaO, (c) ZnO, (d) BO, and (e) at least one selected from the group consisting of SiO, AlO, and TiO, in which the total content percentage of BaO, SrO, and CaO is 30 mol % or more, the molar ratio represented by BO/(SiO+AlO+TiO) is 0.7 to 1.5, and the content percentage of ZnO is 0 to 5 mol %.

Conductive paste and multilayer ceramic electronic component

A multilayer ceramic electronic component in which an interface of an edge region of an external electrode that extends around to a side surface of a ceramic body and the ceramic of the surface of the ceramic body in contact therewith, there exists glass (a) containing BaO serving as a first alkaline earth oxide and at least one of CaO and SrO serving as a second alkaline earth oxide, (b) having a total content ratio of the first alkaline earth oxide and the second alkaline earth oxide in a range of 30 to 70 mol %, and (c) having an SiOcontent ratio in a range of 15 to 60 mol %. The molar ratio of the first alkaline earth oxide to the second alkaline earth oxide is in a range of 0.1 to 0.5.

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Nagaokakyo, Japan

Tomochika Miyazaki