Method of stressing oxides
US9976226B2 · kind B2 · utility
0Cited by
9References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 28, 2016 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Jan 6, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Methods are presented that includes replacing oven depolarization of a foil with a sonic vibration process for stressing the oxide. The method includes electrochemically etching the metal foil to form a plurality of tunnels in the metal foil and forming an oxide on a surface of the metal foil. The method further includes applying sonic vibration to the metal foil to induce stress fractures in the oxide, and reforming the oxide to heal at least a portion of the stress fractures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.