Method and system for providing an antiferromagnetically coupled writer
US9368134B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2013 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Apr 18, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3163
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and system for fabricating a magnetic transducer are described. The magnetic transducer includes a pole and a nonmagnetic intermediate layer adjacent to the pole. The pole has a paddle and a pole tip including a plurality of sidewalls. The pole includes a first magnetic pole layer, at least one antiferromagnetic coupling (AFC) structure on the first magnetic pole layer, and a second magnetic pole layer on the AFC structure(s). At least a portion of the first magnetic pole layer resides on the sidewalls of the pole tip. The paddle has a paddle width in a track width direction. The pole tip has a pole tip width in a track width direction that is less than the paddle width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.