Dielectric ceramic composition
US8652984B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2012 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Apr 27, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/85
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A dielectric ceramic composition comprising a main component and at least one or more subcomponent elements has a dielectric particle and a grain boundary. The dielectric particle has a main component phase substantially composed of the main component, and a diffusive phase around the main component phase where at least one selected from the subcomponent elements is diffused, a local minimal value of Cs is located at an outside edge side with respect to a position of the local maximum value of Cs, and Cs is increased from a position of the local minimal value of Cs toward the outside edge, when the dielectric particle is cut on an arbitrary cutting plane including the main component phase, and Cs is defined as a concentration of one or more elements selected from the subcomponent elements in an arbitrary position in the dielectric particle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.