Magnetic tunnel junction using nanoparticle monolayers and applications therefor
US6730395B2 · kind B2 · utility
22Cited by
11References
20Claims
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Key dates
| Filing date | Dec 18, 2001 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Apr 20, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fundamentally new magnetic tunnel junction technology based on the use of magnetic nanoparticles is disclosed. The hard layer of the device is composed of the nanoparticles, while the junction insulating barrier is composed of a carbon-based coating on the nanoparticles. This device offers a markedly different approach of tunnel junction fabrication and offers many advantages over the prior art technology, which is based on the use of oxidized aluminum as the insulating barrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.