CPC H01G 4/30 (2013.01) [H01G 4/012 (2013.01); H01G 4/1227 (2013.01)] | 5 Claims |
1. A multi-layer ceramic capacitor, comprising:
a multi-layer unit that includes a plurality of ceramic layers laminated in a direction of a first axis and a plurality of internal electrodes disposed between the plurality of ceramic layers, positions of end portions of the plurality of internal electrodes in a direction of a second axis perpendicular to the first axis falling within a range of 0.5 μm in the direction of the second axis; and
a first side margin and a second side margin each containing at least one of manganese or magnesium and silicon and facing each other in the direction of the second axis with the multi-layer unit sandwiched therebetween, wherein
when each of the first side margin and the second side margin is equally divided, in the direction of the second axis, into a first inner region and a first outer region, the first inner region being in contact with the multi-layer unit,
a total concentration of manganese and magnesium in the first outer region is higher than a total concentration of manganese and magnesium in the first inner region and higher than a total concentration of manganese and magnesium in the plurality of ceramic layers, and
a concentration of silicon in the first inner region is equal to or higher than a concentration of silicon in the first outer region and higher than a concentration of silicon in the plurality of ceramic layers.
|