Multilayer ceramic capacitor and method for manufacturing multilayer ceramic capacitor
US-9099244-B2 · Aug 4, 2015 · US
Laminated ceramic capacitor and method for manufacturing laminated ceramic capacitor
US10121591B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10121591-B2 |
| Application number | US-201715643826-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 7, 2017 |
| Priority date | Aug 7, 2012 |
| Publication date | Nov 6, 2018 |
| Grant date | Nov 6, 2018 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A laminated ceramic capacitor that includes a ceramic laminated body having a stacked plurality of ceramic dielectric layers and a plurality of internal electrodes opposed to each other with the ceramic dielectric layers interposed therebetween, and external electrodes on the outer surface of the ceramic laminated body and electrically connected to the internal electrodes. The internal electrodes contain Ni and Sn, a proportion of the Sn/(Ni+Sn) ratio is 0.001 or more in molar ratio is 75% or more in a region of the internal electrode at a depth of 20 nm from a surface opposed to the ceramic dielectric layer, and the proportion of the Sn/(Ni+Sn) ratio is 0.001 or more in molar ratio is less than 40% in a central region in a thickness direction of the internal electrode.
First claim
Opening claim text (preview).
The invention claimed is: 1. A laminated ceramic capacitor comprising: a ceramic laminated body having a plurality of stacked ceramic dielectric layers and a plurality of internal electrodes opposed to each other with the ceramic dielectric layers interposed therebetween; and an external electrode on an outer surface of the ceramic laminated body and electrically connected to the internal electrodes, wherein the internal electrodes contain Ni and Sn, in a region of the internal electrode at a depth of 20 nm from a surface of the internal electrode opposed to the ceramic dielectric layer a proportion of a ratio of Sn to a total amount of Sn and Ni is 0.001 or more in molar ratio is 75% or more; and in a central region in a thickness direction of the internal electrode a proportion of the ratio of Sn to the total amount of Sn and Ni is 0.001 or more in molar ratio is less than 40%.
Assignees
Inventors
Classifications
- H01G4/008Primary
Selection of materials · CPC title
Fried electrodes · CPC title
Stacked capacitors (H01G4/33 takes precedence) · CPC title
Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00 · CPC title
Form of non-self-supporting electrodes · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10121591B2 cover?
- A laminated ceramic capacitor that includes a ceramic laminated body having a stacked plurality of ceramic dielectric layers and a plurality of internal electrodes opposed to each other with the ceramic dielectric layers interposed therebetween, and external electrodes on the outer surface of the ceramic laminated body and electrically connected to the internal electrodes. The internal electrod…
- Who is the assignee on this patent?
- Murata Manufacturing Co
- What technology area does this patent fall under?
- Primary CPC classification H01G4/008. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 06 2018 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).