Magnetic write head with upper return pole optimization for reduced trailing shield protrusion
US7835111B2 · kind B2 · utility
47Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2007 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | Sep 14, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3116
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic write head for perpendicular magnetic recording that is resistant to write pole and trailing shield protrusion. The write pole includes a magnetic return pole that is magnetically connected with the trailing shield, the return pole being resistant to deformation or recession such as from mechanically abrasive slider cleaning operations such as soda blast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.