Murata Manufacturing Co., Ltd.

Yutaka Shimahara

Yukio Sakabe

Yasunobu Yoneda

Kazutaka Nakamura

Hiroaki Taira

Shozo Takeuchi

A monolithic capacitor includes a sintered ceramic body having a sintered ceramic matrix, a plurality of internal electrodes deposited in the thickness direction in the sintered ceramic body, separated by the sintered ceramic matrix, and alternately extending to opposing two side faces of the sintered ceramic body. Top and bottom ceramic layers are provided above and below the sintered ceramic matrix. The sintered ceramic matrix is composed of a reduction-resistant BaTiO,ceramic. The top and bottom ceramic layers are composed of a reduction-resistant CaZrO,ceramic. The internal electrodes are composed of a base metal. The monolithic capacitor is suitable for middle- to high-voltage use requiring high withstand voltage.

Monolithic capacitor

Respective first end portions of first and second internal electrodes are exposed at respective end surfaces of a varistor body, which is in the form of a rectangular parallelepiped. These end surfaces of the varistor body are covered with low resistance parts which include ceramic material in order to prevent the internal electrodes from decomposition. External electrodes are formed on the low resistance parts, so as, to be electrically connected with corresponding ones of the internal electrodes through the low resistance parts.

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Izumo, Japan

Yutaka Shimahara