Laminated touchdown sensor for hard disk drives
US8837081B1 · kind B1 · utility
0Cited by
14References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2011 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Jan 13, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/6076
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and system provide a touchdown sensor for use in disk drive. The touchdown sensor includes a sensor layer including a plurality of magnetic layers interleaved with at least one nonmagnetic layer. The plurality of magnetic layers are magnetically coupled and single domain. Further, the sensor has a temperature coefficient of resistivity (TCR) of at least 0.15%/° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.