Magnetoresistive shield incorporating seedlayer for anisotropy enhancement
US6169646A · kind A · utility
15Cited by
21References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1999 |
| Grant date | Jan 2, 2001 |
| Priority date | — |
| Expiry date | Mar 17, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/3996
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A layer of iron--silicon--aluminum alloy is deposited over a seedlayer of an amorphous alloy to form a shield for a read element in a recording head. Percentage weights of iron, silicon, and aluminum in the iron--silicon--aluminum alloy are each selected such that the alloy has both near-zero magnetostriction and distinct magnetocrystalline anisotropy. Use of the amorphous alloy seedlayer results in greater magnetocrystalline anisotropy in the shield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.