Thin film magnetic head with Ni-Fe alloy thin film
US6118628A · kind A · utility
26Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1996 |
| Grant date | Sep 12, 2000 |
| Priority date | — |
| Expiry date | Jan 30, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/3996
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic film having a high saturation magnetic flux density larger than 1.5 T and a resistivity larger than 40 .mu..OMEGA..cndot.cm is fabricated through an electroplating method using (40-60)Ni-Fe and by adding Co, Mo, Cr, B, In, Pd or the like to the (40-60)Ni-Fe. Thereby, it is possible to obtain a recording head capable of performing sufficient recording in a high frequency range and to obtain a disk storage system with a high recording density which has a transfer rate higher than 15 MB/s, a recording frequency higher than 45 MHz and a rotating speed of a magnetic disk higher than 4000 rpm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.