Thin film magnetic head and fabricating method thereof
US4539616A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1982 |
| Grant date | Sep 3, 1985 |
| Priority date | — |
| Expiry date | Jul 20, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49064
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Herein disclosed is a thin film magnetic head which is so constructed that a conductor layer arranged in a non-magnetic insulating layer isolating two magnetic poles and adapted to form a coil of plural turns has a height made larger than the width and gap thereof. A method of fabricating that head includes the step of forming a non-magnetic insulating layer, the step of etching the insulating layer by using a mask layer formed thereover as a mask, the step of depositing a metal for providing a conductor layer, the step of removing the mask layer together with the metal thereover, and the step forming a coating of a non-magnetic insulating layer thereover, thereby to form the conductor layer. The head thus fabricated has its magnetic recording and reproducing characteristics improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.