Patent ID: 9236188
Filing Date: 2016-01-12
CPC Classification: H01G

Claim Text:
1. A multilayer ceramic capacitor comprising: a ceramic body including inner electrodes and ceramic dielectric layers alternatively stacked on each other in a stacking direction; and a pair of outer electrodes located on predetermined areas of the ceramic body; wherein the ceramic body includes first and second main surfaces opposing each other in the stacking direction, first and second end surfaces opposing each other in a length direction, and first and second side surfaces opposing each other in a width direction; the pair of outer electrodes include a first outer electrode covering at least the first end surface and a second outer electrode covering at least the second end surface; at least one first auxiliary electrode is located between the first main surface and one of the inner electrodes closest to the first main surface; and at least one second auxiliary electrode is located between the second main surface and one of the inner electrodes closest to the second main surface; some of the inner electrodes include a first effective portion and a first extension portion extending from the first effective portion toward the first end surface and electrically connecting to the first outer electrode, and others of the inner electrodes include a second effective portion and a second extension portion extending from the second effective portion toward the second end surface and electrically connecting to the second outer electrode; a thickness of each end portion of the first extension portion is larger than a thickness of each middle portion of the first extension portion, and a thickness of each end portion of the second extension portion is larger than a thickness of each middle portion of the second extension portion; a distance from the first main surface to the first auxiliary electrode closest to the first main surface is different from a distance from the second main surface to the second auxiliary electrode closest to the second main surface in the stacking direction; a dimension in the stacking direction of each of end portions of the first auxiliary electrode in a width direction of the first auxiliary electrode is larger than a dimension in the stacking direction of a middle portion of the first auxiliary electrode in the width direction of the first auxiliary electrode by about 1% or more of the dimension in the stacking direction of the middle portion of the first auxiliary electrode in the width direction of the first auxiliary electrode; and a dimension in the stacking direction of each of end portions of the second auxiliary electrode in a width direction of the second auxiliary electrode is larger than a dimension in the stacking direction of a middle portion of the second auxiliary electrode in the width direction of the second auxiliary electrode by about 1% or more of the dimension in the stacking direction of the middle portion of the second auxiliary electrode in the width direction of the second auxiliary electrode.