Magnetic sensor with composite magnetic shield
US8945405B2 · kind B2 · utility
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15References
19Claims
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Key dates
| Filing date | Apr 23, 2013 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Apr 23, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/398
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magneto-resistive reader includes a first magnetic shield element, a second magnetic shield element and a magneto-resistive sensor stack separating the first magnetic shield element from the second magnetic shield element. The first shield element includes two ferromagnetic anisotropic layers separated by a grain growth suppression layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.