Thin film magnetic heads with thin nickel underlayers
US5666250A · kind A · utility
5Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1994 |
| Grant date | Sep 9, 1997 |
| Priority date | — |
| Expiry date | Feb 1, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3153
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A thin film head (12) and a method for fabricating the same comprises depositing a first nickel seed layer (37) on a substrate (25), forming a bottom portion (16) of a magnetic core (13) on the first nickel seed layer (37), depositing a second nickel layer (39) and forming a top portion (14) of the magnetic core (13) on the second nickel seed layer (39). The stability of the thin film head (12) while in a relaxed state and its read performance are significantly improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.