Combination read/write thin film magnetic head and its manufacturing method
US6177207A · kind A · utility
11Cited by
4References
64Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 16, 1998 |
| Grant date | Jan 23, 2001 |
| Priority date | — |
| Expiry date | Sep 16, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1143
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The bottom core layer is formed into a double-layer structure in which the first bottom core layer and the second bottom core layer containing Co as a principal component are formed of soft magnetic films mainly constructed by an amorphous structure. The second bottom core layer has a higher Co concentration than the Co concentration of the first bottom core layer, making it possible to improve the core function of the second bottom core layer along with improving the shield function of the first bottom core layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.