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US 2018/0019060 A1Published application
Multilayer ceramic capacitor
AssigneeMurata Manufacturing Co., Ltd.
InventorsHiroaki SUGITA, Shota KITANO
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Abstract
A multilayer ceramic capacitor includes a body and at least two outer electrodes. The body includes first and second main surfaces, an inner layer portion and first and second outer layer portions. In the inner layer portion, dielectric layers and conductive layers are alternately stacked on each other. The second outer layer portion includes an outer portion and an inner portion. A boundary region adjacent to the inner portion in the outer portion inclines toward the first main surface.
Claims10
A multilayer ceramic capacitor comprising:
- a body that includes a plurality of dielectric layers and a plurality of conductive layers stacked on each other in a stacking direction and that 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 connecting the first and second main surfaces, and first and second side surfaces opposing each other in a width direction and connecting the first and second main surfaces and the first and second end surfaces;
- and
- first and second outer electrodes that are disposed on portions of a surface of the body;
- wherein
- the plurality of conductive layers include first conductive layers connected to the first outer electrode and second conductive layers connected to the second outer electrode;
- the body includes a first outer layer portion including a first of the plurality of dielectric layers defining the first main surface, a second outer layer portion including a second of the plurality of dielectric layers defining the second main surface, and an inner layer portion adjacent to both of the first outer layer portion and the second outer layer portion, the inner layer portion includes a portion extending from a first outermost conductive layer positioned closest to the first main surface among the plurality of conductive layers through a second outermost conductive layer positioned closest to the second main surface among the plurality of conductive layers;
- the second outer layer portion includes an outer portion including the second main surface and an inner portion disposed adjacent to both of the outer portion and the inner layer portion;
- a height of the inner layer portion in the stacking direction is larger than a width of the body in the width direction;
- a composition ratio of Si relative to Ti of the outer portion is higher than that of the inner portion;
- and
- the second outer layer portion is thicker than the first outer layer portion.
8 more elements
A multilayer ceramic capacitor comprising:
- a body that includes a plurality of dielectric layers and a plurality of conductive layers stacked on each other in a stacking direction and that 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 connecting the first and second main surfaces, and first and second side surfaces opposing each other in a width direction and connecting the first and second main surfaces and the first and second end surfaces;
- and
- first and second outer electrodes that are disposed on portions of a surface of the body;
- wherein
- the plurality of conductive layers include first conductive layers connected to the first outer electrode and second conductive layers connected to the second outer electrode;
- the body includes a first outer layer portion including a first of the plurality of dielectric layers defining the first main surface, a second outer layer portion including a second of the plurality of dielectric layers defining the second main surface, and an inner layer portion adjacent to both of the first outer layer portion and the second outer layer portion, the inner layer portion includes a portion extending from a first outermost conductive layer positioned closest to the first main surface among the plurality of conductive layers through a second outermost conductive layer positioned closest to the second main surface among the plurality of conductive layers;
- the second outer layer portion includes an outer portion including the second main surface and an inner portion disposed adjacent to both of the outer portion and the inner layer portion;
- a height of the inner layer portion in the stacking direction is larger than a width of the inner layer portion in the width direction;
- a composition ratio of Si relative to Ti of the outer portion is higher than that of the inner portion;
- and
- the second outer layer portion is thicker than the first outer layer portion.
8 more elements
Dependencies are inferred from the claim text.