Wiring for thin film magnetic head
US4583143A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 13, 1983 |
| Grant date | Apr 15, 1986 |
| Priority date | — |
| Expiry date | May 13, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/313
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A wiring configuration for thin film magnetic recording and reproducing heads. The inside end of the windings of the thin film magnetic recording head extends through an insulator to contact a bottom permalloy layer. A source of driving current is connected through a first conductor to the bottom permalloy layer and through a second conductor to the outside end of the windings. Thus, the windings of the thin film magnetic recording head are driven without the use of an overpass conductor. The bottom permalloy conductor can be divided so that the magnetic core formed by a first portion of the permalloy layer and the pole piece is insulated from a second portion of said bottom permalloy layer which receives the driving current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.