Insulator barrier for noise reduction of a TMR magnetic transducer
US7855861B2 · kind B2 · utility
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10References
12Claims
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Key dates
| Filing date | Apr 30, 2007 |
| Grant date | Dec 21, 2010 |
| Priority date | — |
| Expiry date | Sep 26, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/32
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hard disk drive slider comprises an overcoat layer, which covers an air-bearing surface of the slider. The overcoat covers an exposed surface of a tunneling magnetoresistance transducer. An adhesion layer is coupled with the overcoat layer and the air-bearing surface. The adhesion layer comprises a compound of nitrogen. The compound of nitrogen reduces noise in read data from the tunneling magnetoresistance transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.