Capacitor of variable capacity, comprising a layer of a phase change material, and method for varying the capacity of a capacitor
US9824825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2015 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | May 4, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N70/8833
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a variable-capacitance electrical capacitor comprising a first electrode and a second electrode facing the first electrode and a zone of a dielectric material arranged between said first and second electrodes characterized in that the second electrode is formed at least on one hand of a primary electrode made of an electrically conductive material and, at least on the other, of an additional electrode comprising a state-change material, the primary electrode and the additional electrode facing the first electrode, said state-change material being arranged at least partially in contact with the primary electrode and configured to alternatively adopt a high-resistivity state wherein the additional electrode is electrically insulated from the primary electrode and a low-resistivity state wherein the additional electrode is in electrical conduction with the primary electrode so as to vary the electrically active surface area of the second electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.