Dielectric material and capacitor comprising the dielectric material
US9847176B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2015 |
| Grant date | Dec 19, 2017 |
| Priority date | — |
| Expiry date | Feb 19, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dielectric material suitable for use in an electronic component includes bismuth ferrite, strontium titanate and an additive. The additive comprises barium titanate. The barium titanate reduces the temperature capacitance change of the dielectric material and allows for increased working voltages. The material is useful for the construction of capacitors, and particularly capacitors intended for use at high temperatures. Also provided are a capacitor including the dielectric material, methods of manufacturing the dielectric material and the capacitor, and the use of an additive to improve the lifetime and/or reduce the dissipation factor of a capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.