Magnetic stack including non-magnetic seed layer for hard disk drive media
US11763845B2 · kind B2 · utility
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6References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 17, 2021 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Dec 17, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/7379
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic stack includes a substrate and a soft magnetic underlayer deposited on a top surface of the substrate. A heat sink layer is disposed on top of the soft magnetic underlayer, and an interlayer is deposited on top of the heat sink layer. A non-magnetic seed layer is deposited on top of the interlayer. A magnetic recording structure which includes more than one magnetic recording layer is deposited on the top surface of the non-magnetic seed layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.