Capacitor and method for manufacturing same
US-2024347278-A1 · Oct 17, 2024 · US
Multilayer ceramic capacitor
US9496087B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9496087-B2 |
| Application number | US-201314410561-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 21, 2013 |
| Priority date | Jun 21, 2012 |
| Publication date | Nov 15, 2016 |
| Grant date | Nov 15, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
There is provided a multilayer ceramic capacitor in which an increase in conductor resistance at an end of an internal electrode layer is suppressed, and in which a gap between the internal electrode layer and a dielectric layer is reduced. A multilayer ceramic capacitor includes a stacked body including dielectric layers and internal electrode layers alternately laminated; and an external electrode disposed on an end surface of the stacked body and connected to the internal electrode layers, the internal electrode layers each including a connection electrode portion connected to the external electrode, and an internal electrode portion which is connected to the connection electrode portion and extends toward an inner side of the stacked body, a ratio of a material having a melting point higher than that of a conductive material being higher in the connection electrode portion than in the internal electrode portion.
First claim
Opening claim text (preview).
The invention claimed is: 1. A multilayer ceramic capacitor, comprising: a stacked body comprising dielectric layers and internal electrode layers alternately laminated; and an external electrode disposed on an end surface of the stacked body and connected to the internal electrode layers, the internal electrode layers each including a connection electrode portion connected to the external electrode, and an internal electrode portion which is connected to the connection electrode portion and extends toward an inner side of the stacked body, the connection electrode portion containing a first conductive material and a material having a melting point higher than that of the first conductive material, the internal electrode portion containing a second conductive material, or the second conductive material and a material having a melting point higher than that of the second conductive material, a ratio of the material having a melting point higher than that of the first conductive material with respect to a total amount of the first conductive material and the material having a melting point higher than that of the first conductive material in the connection electrode portion is higher than a ratio of the material having a melting point higher than that of the second conductive material with respect to a total amount of the second conducive material and the material having a melting point higher than that of the second conductive material in the internal electrode portion. 2. The multilayer ceramic capacitor according to claim 1 , wherein the material having a melting point higher than that of the first conductive material is formed of a material same as a dielectric material of the dielectric layer. 3. The multilayer ceramic capacitor according to claim 1 , wherein the material having a melting point higher than that of the second conductive material is formed of a material same as a dielectric material of the dielectric layer. 4. The multilayer ceramic capacitor according to claim 1 , wherein the connection electrode portion is disposed to overlap an end of the internal electrode portion. 5. The multilayer ceramic capacitor according to claim 4 , wherein an end of the connection electrode portion that overlaps the internal electrode portion is rounded. 6. The multilayer ceramic capacitor according to claim 1 , wherein the connection electrode portion has a thickness larger than that of the internal electrode portion. 7. The multilayer ceramic capacitor according to claim 1 , wherein the first conductive material and the second conductive material are a same metal or a same alloy.
Assignees
Inventors
Classifications
- H01G4/232Primary
electrically connecting two or more layers of a stacked or rolled capacitor · CPC title
Form of self-supporting electrodes · CPC title
Electrodes · CPC title
the terminals embracing or surrounding the capacitive element, e.g. caps (H01G4/252 takes precedence) · CPC title
Form of non-self-supporting electrodes · CPC title
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Frequently asked questions
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- What does patent US9496087B2 cover?
- There is provided a multilayer ceramic capacitor in which an increase in conductor resistance at an end of an internal electrode layer is suppressed, and in which a gap between the internal electrode layer and a dielectric layer is reduced. A multilayer ceramic capacitor includes a stacked body including dielectric layers and internal electrode layers alternately laminated; and an external elec…
- Who is the assignee on this patent?
- Kyocera Corp
- What technology area does this patent fall under?
- Primary CPC classification H01G4/232. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 15 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).