Environmental corrosion protection for hard disk drive elements by thermal activation
US6407880B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2000 |
| Grant date | Jun 18, 2002 |
| Priority date | — |
| Expiry date | Mar 28, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A computer system hard disk drive contains magnetic heads for reading data to and writing data from storage media disks. The heads are coupled to an electrical source that thermally excites the heads during non-operation of the disk drive in order to raise the temperature of the heads. The temperature increase induces a mechanism such as a local, low humidity barrier at each of the heads. When the disk drive is stored in harsh environmental atmospheres, such as high temperatures and high humidity, the mechanism or low humidity barrier is sufficient to overcome the ambient conditions and reduce environmental corrosion of the heads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.