Edge barrier to prevent spin valve sensor corrosion and improve long term reliability
US6600637B1 · kind B1 · utility
8Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2000 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Apr 3, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/3996
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic data storage and retrieval system has a bottom shield, a first half gap positioned on the bottom shield, a sensor layer positioned on the first half gap, a second half gap positioned on the sensor layer; and a top shield positioned on the second half gap. The sensor layer includes a magnetoresistive sensor having sidewalls and a barrier surrounding and in direct contact with the sidewalls of the magnetoresistive sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.