Method for manufacturing perpendicular magnetic recording head having inverted trapezoidal main magnetic pole layer
US6952867B2 · kind B2 · utility
22Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2001 |
| Grant date | Oct 11, 2005 |
| Priority date | — |
| Expiry date | Jun 9, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4906
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The side edge of the main magnetic pole layer is prevented from protruding in the track width direction even when a skew angle is generated by forming the main magnetic pole layer of the opposing face opposing the recording medium as an inverted trapezoid, thereby enabling the occurrence of side fringing to be prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.