Method of screening hard disk drive
US7123428B2 · kind B2 · utility
55Cited by
11References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2004 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Sep 7, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2516
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of screening a hard disk drive (HDD) including: measuring one or more parameters to display read/write head performances at least two times during an HDD process; and calculating variances of the measured one or more parameters and judging whether head degradation has occurred based on the calculated variances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.