Method for manufacturing a magnetic recording transducer having side shields
US8720044B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2013 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Feb 27, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49052
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for manufacturing a magnetic transducer is described. The method includes providing a negative mask having a bottom, a plurality of sides, and a top wider than the bottom. The method also includes depositing a nonmagnetic layer on the negative mask. The nonmagnetic layer has a plurality of portions covering the plurality of sides of the negative mask. The method also includes providing a first mask having a first trench therein. The negative mask resides in the first trench. The method further includes depositing side shield material(s), at least a portion of which resides in the first trench. The method further includes removing the negative mask to create a second trench between the plurality of portions of the nonmagnetic layer and form a pole, at least a portion of which resides in the second trench.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.