Eliminating ESD exposure for read/write head with heating element
US7199982B2 · kind B2 · utility
15Cited by
5References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 2004 |
| Grant date | Apr 3, 2007 |
| Priority date | — |
| Expiry date | Aug 22, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/41
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention provide a grounded conductive layer between the heater and the lower magnetoresistive (MR) shield in the read/write head structure. The grounded conductive layer eliminates or at least substantially prevents the accumulation of charges on the lower MR shield as a result of the voltage supplied to the heater. In one embodiment, a magnetic head comprises a plurality of read/write components; a heater disposed near the plurality of read/write components; and a grounded conductive layer disposed between the heater and the plurality of read/write components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.