Implementing integrated spin-torque oscillator and interface bias control for hard disk drives
US8570684B1 · kind B1 · utility
23Cited by
2References
22Claims
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Key dates
| Filing date | Oct 5, 2012 |
| Grant date | Oct 29, 2013 |
| Priority date | — |
| Expiry date | Oct 5, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0024
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method, apparatus, and system for implementing spin integrated spin-torque oscillator (STO) with an interface bias control for hard disk drives. Bias circuitry for a spin-torque oscillator (STO) is integrated with a slider for microwave assisted magnetic recording (MAMR). The slider includes read and write transducers and the integrated STO bias circuitry controls a bias potential applied to a write return pole to the write transducer with respect to a disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.