Bilayer trailing shield gap for perpendicular head
US7477481B2 · kind B2 · utility
23Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2005 |
| Grant date | Jan 13, 2009 |
| Priority date | — |
| Expiry date | Feb 7, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3163
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A perpendicular write head for writing data onto tracks includes a main pole, a trailing shield and bilayer trailing shield gap layer between the main pole and the trailing shield and improving writing and track width control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.