Murata Manufacturing Co., Ltd.

Eiji Teraoka

Hirokazu Takashima

Haruki Kobayashi

Isao Fukuchi

An electronic component includes a laminate in which first internal electrodes and second internal electrodes are alternately laminated in a lamination direction with dielectric layers interposed therebetween, the laminate including a first main surface and a second main surface opposite to each other in the lamination direction, a first side surface and a second side surface opposite to each other in a width direction, and a first end surface and a second end surface opposite to each other in a length direction, a first external electrode provided on a surface of the laminate and electrically connected to the first internal electrodes, a second external electrode provided on a surface of the laminate and electrically connected to the second internal electrodes, and side margin portions each including a dielectric including Ca, Zr, and Ti.

Electronic component, circuit board, and method of mounting electronic component on circuit board

A multilayer ceramic capacitor includes a laminate including ceramic layers and internal electrode layers laminated together in a lamination direction, and at a widthwise end of at least one of the internal electrode layers in a cross section of the laminate perpendicular to the lamination direction, a ratio of a length X to a length Y is about 1.2 or more and about 3.0 or less, where the length X denotes a length of a straight boundary line between the internal electrode layer and the ceramic layer when the shape of the internal electrode layer is considered as a polygon, and the length Y denotes a length of an actual boundary line between the internal electrode layer and the ceramic layer.

Multilayer ceramic capacitor

A multilayer ceramic capacitor includes a stacked body including a stack of a plurality of dielectric layers and a plurality of internal electrodes, and a pair of external electrodes. In the stacked body, a width dimension is greater than a thickness dimension, a length dimension preferably is about 0.4 mm or less, a width dimension preferably is about 0.15 mm or more and about 0.35 mm or less, a thickness dimension preferably is about 0.2 mm or less, and each of the internal electrodes is made of Cu or Ag as a main component and has a width dimension that is about 60% or more of the width dimension of the stacked body.

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Nagaokakyo, Japan

Eiji Teraoka