Multilayer electronic component

1 . A multilayer electronic component comprising:

an effective portion comprising a dielectric layer and an inner electrode that are stacked alternately in a stacking direction;

a cover overlapping the effective portion in the stacking direction; and

an underlying electrode overlapping the cover from a side opposite from the effective portion,

wherein the cover comprises:

multiple insulating layers stacked in the stacking direction; and

a dummy electrode positioned between the multiple insulating layers,

the dummy electrode comprises at least one oxidation region,

wherein, in a section parallel to the stacking direction and a first direction orthogonal to the stacking direction, the at least one oxidation region are a plurality of oxidation regions and comprises an oxidation region large enough to extend over an entire thickness of the dummy electrode,

wherein the dummy electrode is positioned, relative to the cover, closer to an end portion than to a center in the first direction, and

wherein, in the dummy electrode, a first total area of the at least one oxidation region in a half on a side of the end portion is greater than a third total area of the at least one oxidation region in an other half on a side of the center,

wherein, in the section parallel to the stacking direction, a proportion of a total area of the at least one oxidation region in the dummy electrode to an area of the dummy electrode is greater than a proportion of a total area of an oxidation region in the underlying electrode to an area of the underlying electrode.

2 . A multilayer electronic component comprising:

an effective portion comprising a dielectric layer and an inner electrode that are stacked alternately in a stacking direction;

a cover overlapping the effective portion in the stacking direction; and

an underlying electrode overlapping the cover from a side opposite from the effective portion,

wherein, the cover comprises:

multiple insulating layers stacked in the stacking direction; and

a dummy electrode positioned between the multiple insulating layers,

wherein the dummy electrode comprises at least one oxidation region, and

wherein in a section parallel to the stacking direction, a first proportion of a total area of the at least one oxidation region in the dummy electrode to an area of the dummy electrode is greater than a proportion of a total area of an oxidation region in the underlying electrode to an area of the underlying electrode.

3 . The multilayer electronic component according to claim 2 , wherein the underlying electrode does not comprise an oxidation region.

4 . The multilayer electronic component according to claim 2 , wherein the dummy electrode is thinner than the underlying electrode.

5 . The multilayer electronic component according to claim 1 , wherein, in the section parallel to the stacking direction, a proportion of a total area of the at least one oxidation region in the dummy electrode to an area of the dummy electrode is greater than a proportion of a total area of an oxidation region in the inner electrode to an area of the inner electrode.

6 . The multilayer electronic component according to claim 2 , wherein, in the section parallel to the stacking direction, the first proportion is greater than a proportion of a total area of an oxidation region in the inner electrode to an area of the inner electrode.

7 . The multilayer electronic component according to claim 2 , wherein, in the section parallel to the stacking direction,

the at least one oxidation region are a plurality of oxidation regions, and

the first proportion is a proportion of the total area of the plurality of oxidation regions in the dummy electrode to the area of the dummy electrode.

8 . The multilayer electronic component according to claim 2 , wherein, in the section parallel to the stacking direction and a first direction orthogonal to the stacking direction,

the dummy electrode is positioned, relative to the cover, closer to an end portion than to a center in the first direction, and,

in the dummy electrode, a total area of the at least one oxidation region in a half on a side of the end portion is greater than a total area of the at least one oxidation region in an other half on a side of the center.

9 . The multilayer electronic component according to claim 6 , wherein, in the section parallel to the stacking direction and a first direction orthogonal to the stacking direction,

the dummy electrode is positioned, relative to the cover, closer to an end portion than to a center in the first direction, and,

in the dummy electrode, an area proportion of the at least one oxidation region on a side of the end portion is greater than an area proportion of the at least one oxidation region on a side of the center.

10 . The multilayer electronic component according to claim 1 , wherein, in the section parallel to the stacking direction, the first proportion is not more than 20%.

11 . The multilayer electronic component according to claim 1 , wherein, in the section parallel to the stacking direction, the first proportion is not less than 5%.

12 . The multilayer electronic component according to claim 1 , wherein, in the section parallel to the stacking direction and a first direction orthogonal to the stacking direction,

the dummy electrode is positioned, relative to the cover, closer to an end portion than to a center in the first direction, and,

in the dummy electrode, a total area of the at least one oxidation region in a half on a side of the end portion is greater than a total area of the at least one oxidation region in an other half on a side of the center.