Multilayer ceramic electronic component
AssigneeMurata Manufacturing Co., Ltd.
InventorsMasato NISHIOKA, Tomoro ABE, Tomonori MURAKI
Life of this patent
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Abstract
In a multilayer ceramic electronic component, dummy electrodes are located in margin regions. In a region between an extension line of a side of a facing portion of an internal electrode facing a side surface of an element body and a side of an extending portion of the internal electrode facing the side surface, the dummy electrode is arranged not to extend to the extension line of the side facing the side surface. The dummy electrode includes a plurality of electrode pieces linearly extending in the direction parallel or substantially parallel to the side surface.
Claims3
A multilayer ceramic electronic component comprising:
- an element body including a pair of principal surfaces facing each other, a pair of side surfaces facing each other, and a pair of end surfaces facing each other, rounded chamfer portions located along ridgelines between the side surfaces and the end surfaces, and a plurality of ceramic layers extending in a principal surface direction and laminated in a direction perpendicular or substantially perpendicular thereto and a plurality of pairs of internal electrodes which are provided along interfaces between the ceramic layers, which each include an exposure end exposed to one of the pair of end surfaces, and which are not exposed to the side surfaces;
- external electrodes provided at least on the pair of end surfaces of the element body so as to be electrically connected to the exposure ends of the internal electrodes;
- and
- dummy electrodes provided along the interfaces between the ceramic layers;
- wherein
- each the internal electrodes includes:
- a facing portion including a pair of sides parallel or substantially parallel to the side surfaces and facing an adjacent internal electrode with at least one of the ceramic layers interposed therebetween;
- and
- an extending portion extending from the facing portion to one of the end surfaces to define the exposure end at the end of the extending portion;
- wherein
- a width of the exposure end of the extending portion is smaller than a width of the facing portion when viewed in a width direction between the side surfaces so as to define margin regions at two sides of the extending portion and between the sides of the extending portion and the respective side surfaces;
- the dummy electrodes are provided in the margin regions;
- and
- in regions between extension lines of the sides of the facing portion facing the side surfaces and the respective sides of the extending portion facing the side surfaces, the dummy electrodes are arranged so as not to extend to the extension lines of the sides facing the side surfaces.
Dependencies are inferred from the claim text.