Side-disposed thin film magnetic head and method of fabrication thereof
US5777824A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 13, 1996 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | May 13, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A thin film "third axis" magnetic head is provided which is resistant to head wear which heads typically experience when operating in close proximity to a magnetic recording media. A relatively soft magnetic core is formed on the third axis surface of a hard insulative substrate. The magnetic core includes a gap region at the edge of the third axis surface. The gap region and a portion of the magnetic core adjacent the gap region are covered with a protective layer of hard material, such as diamond-like carbon (DLC). In this manner, a ruggedized sandwich-like head structure is formed including the hard substrate, the enclosed relatively soft magnetic core and the protective layer of hard DLC material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.