Write head with coil structure aligned with yoke
US9286918B1 · kind B1 · utility
2Cited by
46References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2015 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Jul 14, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/313
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A write head having a main pole having a pole tip proximate an air bearing surface (ABS), the main pole having a leading side and a trailing side. The write head also includes a yoke having a yoke tip recessed from the ABS, and a helical coil wrapped around the main pole and the yoke. The helical coil has a first turn with its front edge at least substantially aligned with the yoke tip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.