Thin film magnetic head and method of making the same
US4281357A · kind A · utility
21Cited by
5References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 10, 1979 |
| Grant date | Jul 28, 1981 |
| Priority date | — |
| Expiry date | Sep 10, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49064
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A thin film magnetic head is disclosed which includes a substrate, a first layer of magnetic material having a first offset portion, a second layer of magnetic material having a second offset portion overlying the first offset portion, and a layer of conductor material disposed within the cavity defined by the two offset portions. In one embodiment the offset portion of the first magnetic layer is disposed within a recess in the substrate. In a second embodiment the offset portion of the first magnetic layer is disposed between two insulation layers mounted along the top surface of the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.