Murata Manufacturing Co., Ltd.

Hironori Tsutsumi

Daiki Fukunaga

Masahiro Wakashima

Hideaki Tanaka

Koji Moriyama

Akihiro Tsuru

Daisuke Hamada

Ryota Aso

Satoshi Maeno

Yoshiharu Kubota

Mitsuru Ikeda

Junya Tanaka

Shoji Fukui

Junichi Kawasaki

A multilayer ceramic capacitor includes a multilayer body including an inner layer portion including dielectric layers and internal electrode layers, and external electrodes on end surfaces of the multilayer body. The internal electrode layers each include a counter electrode portion and an extension electrode portion extending from the counter electrode portion toward the end surface and, when viewing the multilayer body in a cross section parallel to the width direction and the lamination direction, and when a maximum length in the width direction of a range in which one end in the width direction of the counter electrode portions is provided is defined as R1, and a maximum length in the width direction of a range in which one end in the width direction of the extension electrode portions is provided is defined as R2, a relationship between R1 and R2 is R2>R1.

Multilayer ceramic capacitor

An electronic component includes a laminate in which a plurality of dielectric layers and a plurality of internal electrodes are alternately laminated and external electrodes electrically connected to the internal electrodes. A side margin portion as a region in which the plurality of internal electrodes is not provided when a section of the laminate having the length direction and the width direction is viewed from the laminating direction includes a plurality of side margin layers laminated in the width direction. An outer layer portion as a region in which the plurality of internal electrodes is not provided except for the side margin portion when a section of the laminate including the laminating direction and the width direction is viewed from the length direction includes a plurality of layer-margin layers laminated in the laminating direction.

Electronic component

A multilayer ceramic capacitor includes a ceramic body including a laminated dielectric layers and laminated internal electrodes, and four external electrodes. The ceramic body includes a first capacitance portion and a second capacitance portion aligned with each other in a lamination direction. The four external electrodes are electrically connected to the internal electrodes in the first capacitance portion that are extracted to a first end surface, the internal electrodes in the first capacitance portion that are extracted to a second end surface, the internal electrodes in the second capacitance portion that are extracted to the first end surface, and the internal electrodes in the second capacitance portion that are extracted to the second end surface, respectively. A dimension in the lamination direction of the ceramic body is smaller than a dimension in a width direction of the ceramic body.

Multilayer ceramic capacitor and multilayer ceramic capacitor mount structure

A composite sheet includes a ceramic green sheet having a lengthwise direction and a conductor film printed on the ceramic green sheet. The conductor film has a shape that has a longitudinal dimension extending in the lengthwise direction and a lateral dimension perpendicular or substantially perpendicular to the longitudinal direction. The conductor film includes a plurality of thickness-varied regions arranged in a row or a plurality of rows extending in the lengthwise direction while being dispersed in the lengthwise direction. The thickness-varied regions have a thickness that is different from a thickness of a portion of the conductor film excluding the thickness-varied regions.

Composite sheet, multilayer ceramic electronic component, and method for manufacturing the multilayer ceramic electronic component

A method for manufacturing a monolithic ceramic electronic component includes the steps of preparing a first ceramic outer layer, stacking a plurality of inner electrodes and a plurality of ceramic green sheets on the first ceramic outer layer, forming an inner portion, applying first pressing in the stacking direction, forming an outer portion on the inner portion to form a second ceramic outer layer, applying second pressing in the stacking direction to form a multilayer body, cutting the mother multilayer body to obtain individual multilayer bodies, sintering the individual multilayer bodies to obtain ceramic bodies, and forming first and second outer electrodes on the outer surface of each of ceramic bodies.

Monolithic ceramic electronic component

A manufacturing method for an electronic component forms with a high degree of accuracy a portion of an outer electrode on a main surface of a dielectric block. Light irradiated from a second main surface side is detected by a detector disposed on a first main surface side, thereby detecting the positions of first and second inner electrodes, and a conductive layer is formed in a portion on a first main surface, determined based on the detection result by the detector, thereby forming first portions of individual first and second outer electrodes.

Method of manufacturing an electronic component

A ceramic green sheet laminate is produced by stacking ceramic green sheets, each including conductive films for forming first or second internal electrodes on a surface thereof. A first cutting step is performed in which the ceramic green sheet laminate is cut to form first and second end surfaces at which the first or second internal electrodes are exposed. A second cutting step is performed in which the ceramic green sheet laminate is cut to form first and second side surfaces at which the first and second internal electrodes are exposed. In the second cutting step, the ceramic green sheet laminate is pressed and cut by moving a cutting blade in a length direction or a width direction.

Method for manufacturing monolithic ceramic electronic components

Device for manufacturing electronic component

In an electronic component, a first external electrode includes a first side surface electrode provided on a first side surface and a substantially rectangular first principal surface electrode that is connected to the first side surface electrode and provided on a principal surface so as to be in contact with a first corner of the principal surface. A second external electrode includes a second side surface electrode that is connected to a capacitor conductor and provided on a second side surface and a substantially rectangular second principal surface electrode that is connected to the second side surface electrode and provided on the principal surface so as to be in contact with a second corner, which is located opposite to the first corner, the second principal surface electrode facing the first principal surface electrode in an x-axis direction, in which long sides of the principal surface extend.

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Nagaokakyo, Japan

Hironori Tsutsumi