Laminated ceramic electronic component
AssigneeMurata Manufacturing Co., Ltd.
InventorsHiroki AWATA, Sui UNO, Takatoshi SUETO
Life of this patent
Estimating the term…
Abstract
A laminated ceramic capacitor includes a laminate including an inner layer portion including a ceramic dielectric layer and an internal electrode, and an outer layer portion defined by a ceramic dielectric layer. At both end portions of the laminate, external electrodes are connected to the internal electrode. In the outer layer portion, a glass layer is provided. An outer ceramic dielectric layer positioned outwardly of the glass layer has a different color from the color of an inner ceramic dielectric layer positioned inwardly of the glass layer.
Claims21
(canceled)
A laminated ceramic electronic component comprising:
- a laminate including an inner layer portion and an outer layer portion, the inner layer portion including a plurality of ceramic dielectric layers each including an internal electrode provided thereon, the outer layer portion including a plurality of ceramic dielectric layers each having no internal electrode provided thereon and positioned outwardly of the inner layer portion;
- and
- external electrodes located at both end portions of the laminate;
- wherein
- an outer ceramic dielectric layer, which includes an exposed ceramic dielectric layer of the outer layer portion, has a different color from a color of each of an inner ceramic dielectric layer and the inner layer portion, the inner ceramic dielectric layer being positioned inwardly of the outer ceramic dielectric layer;
- the outer ceramic dielectric layer is made of a perovskite type compound including Ca and Zr;
- the inner ceramic dielectric layer and the inner layer portion are made of a perovskite type compound including Ba and Ti.
A laminated ceramic electronic component comprising:
- a laminate including an inner layer portion and an outer layer portion, the inner layer portion including a plurality of ceramic dielectric layers each including an internal electrode provided thereon, the outer layer portion including a plurality of ceramic dielectric layers each having no internal electrode provided thereon and positioned outwardly of the inner layer portion;
- and
- external electrodes located at both end portions of the laminate;
- wherein
- an outer ceramic dielectric layer, which includes an exposed ceramic dielectric layer of the outer layer portion, has a different color from a color of each of an inner ceramic dielectric layer and the inner layer portion, the inner ceramic dielectric layer being positioned inwardly of the outer ceramic dielectric layer;
- when the outer ceramic dielectric layer is dissolved into a first solution, the first solution includes a perovskite type compound including Ca and Zr;
- when the inner ceramic dielectric layer and the inner layer portion are dissolved into a second solution, the second solution includes a perovskite type compound including Ba and Ti.
A laminated ceramic electronic component comprising:
- a laminate including an inner layer portion and a pair of outer layer portions, the inner layer portion including a plurality of ceramic dielectric layers each including an internal electrode provided thereon, the pair of outer layer portions including a plurality of ceramic dielectric layers each having no internal electrode provided thereon and positioned on both outer sides of the inner layer portion;
- and
- external electrodes located at both end portions of the laminate;
- wherein
- an outer ceramic dielectric layer, which includes an exposed ceramic dielectric layer of one outer layer portion of the pair of outer layer portions, has a different color from a color of an inner ceramic dielectric layer positioned inwardly of the outer ceramic dielectric layer;
- the one outer layer portion having a thickness different from a thickness of another outer layer portion of the pair of outer layer portions.
Dependencies are inferred from the claim text.