Magnetic capping layer structure for a spin torque oscillator
US9355655B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2015 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Aug 4, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0024
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a magnetic recording head includes: a main pole configured to generate a magnetic field for recording data on a magnetic recording medium; an oscillation device positioned above the main pole in a track direction, the oscillation device being configured to generate a high-frequency magnetic field; a magnetic capping layer positioned above the oscillation device in the track direction, the magnetic layer having a front region at a media facing side (MFS) of the magnetic recording head and a rear region positioned behind the front region in an element height direction, wherein a thickness of the front region of the magnetic capping layer is less than a thickness of the rear region thereof; and a trailing shield positioned above the magnetic capping layer in the track direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.