Magnetic sensor shield pinned by a high-coercivity ferromagnet
US9251816B2 · kind B2 · utility
1Cited by
15References
20Claims
0Family size
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Key dates
| Filing date | Oct 3, 2013 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Oct 3, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/098
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic sensor may generally be configured as a data reader capable of sensing data bits from an adjacent data storage medium. Various embodiments of a magnetic element may have at least a magnetic stack that contacts at least a first shield. The first shield can have at least one synthetic antiferromagnetic structure (SAFS) that is pinned by a high-coercivity ferromagnetic (HCFM) layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.