Multilayer ceramic capacitor and board having the same mounted thereon
US9449759B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2014 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | Apr 17, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G4/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A multilayer ceramic capacitor may include: a ceramic body including dielectric layers; first and second internal electrodes disposed in the ceramic body; and first and second external electrodes formed to end surfaces of the ceramic body. The ceramic body may includes an active layer, a capacitance formation portion, and a cover layer, a non-capacitance formation portion, the cover layer includes a plurality of dummy electrode layers. When the number of the first and second internal electrodes is defined as AL, a thickness of each of the first and second internal electrodes is defined as AT, a thickness of each of the dummy electrode layers is defined as DT, and the number of the dummy electrode layers is defined as DL, DL is equal to {(T×x)−(AL×AT)}/DT, x being 9.0% or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.