Murata Manufacturing Co., Ltd.

Akihiro Shimizu

Hiroaki Taira

Hiroyuki Matsumoto

Kazuaki Kawabata

Tomokazu Inazuka

Makoto Yamauchi

A monolithic ceramic capacitor includes an element body including a multilayer portion including a plural conductor layers and plural ceramic dielectric layers alternately stacked in a thickness direction. The element body is divided in the thickness direction into thickness-direction first and outer layer portions made of the ceramic dielectric layers, and a thickness-direction inner layer portion including the multilayer portion. The element body bulges to the outer side at a center portion in a length direction, and center portions in the length direction of the plural conductor layers are curved to the outer side. The thickness of a portion of the first outer layer portion adjacent to a first extension portion is larger than the thickness of a center portion thereof, and the thickness of a portion of the second outer layer portion adjacent to a second extension portion is larger than the thickness of a center portion thereof.

Monolithic ceramic capacitor

A highly reliable monolithic ceramic capacitor which has no structural defect, e.g. peeling, and which is not susceptible to water from the outside and a method for manufacturing the same are provided. A lead portion of an internal electrode is configured to have a shape provided with a taper-shaped portion in which the width gradually decreases with increasing proximity to the end surface of a ceramic element, and the shape of the end portion opposite to the lead portion of the internal electrode is adjusted to be substantially rectangular. Regarding a pair of internal electrodes facing each other with the ceramic layer therebetween, the internal electrodes are laminated while the positions thereof are displaced with respect to each other in order that a corner portion in the substantially rectangular portion of one internal electrode are located in the vicinity of, but outside the taper-shaped portion of the other internal electrode.

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Nagaokakyo, Japan

Akihiro Shimizu