Magnetic tunnel effect type magnetic head having a magnetic tunnel junction element sandwiched with conductive gap layers between a pair of magnetic shielding layers
US6909584B2 · kind B2 · utility
2Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2001 |
| Grant date | Jun 21, 2005 |
| Priority date | — |
| Expiry date | Jan 11, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/3996
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a magnetic tunnel effect type magnetic head (20) having a magnetic tunnel junction element (26) sandwiched with conductive gap layers (25) and (27) between a pair of magnetic shielding layers (24) and (28), the conductive gap layers (25) and (27) are formed from at least one nonmagnetic metal layer containing a metal element selected from Ta, Ti, Cr, W, Mo, V, Nb and Zr. Therefore, the magnetic head (20) can have an improved face opposite to a magnetic recording medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.