Systems and methods for testing magnetic media disks during manufacturing using sliders with temperature sensors
US8929008B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2013 |
| Grant date | Jan 6, 2015 |
| Priority date | — |
| Expiry date | Jun 26, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/4555
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for testing magnetic media disks during manufacturing using sliders with temperature sensors are provided. One such method involves scanning a surface of a selected disk of a plurality of magnetic media disks using a slider including a magnetic transducer and a temperature sensor, counting a number of the surfaces scanned, determining, during the scanning, whether a threshold crossing event has occurred by determining whether a signal from the temperature sensor signal is not within a preselected range, counting, during the scanning, a number of threshold crossing events, storing, if the number of threshold crossing events is greater than a preselected events limit, the number of surfaces scanned, stopping, if the number of surfaces scanned is greater than a surfaces scanned threshold, the scanning, and returning, if the number of surfaces scanned is less than or equal to the surfaces scanned threshold, to scan a next selected disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.