Thin film magnetic head structure having tapered side edges
US5483403A · kind A · utility
19Cited by
8References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 13, 1995 |
| Grant date | Jan 9, 1996 |
| Priority date | — |
| Expiry date | Mar 13, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3113
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A thin film magnetic structure for use as a flux guide in a magnetic recording system has tapered edges transverse to the magnetization axis of the film. The tapered edges eliminate magnetic edge domains and thereby assure a single magnetic domain in the film structure. Thus, Barkhausen noise is essentially eliminated from the signal read by the film structure from the magnetic recording medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.