Method of manufacturing a magnetic recording transducer
US7493688B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2006 |
| Grant date | Feb 24, 2009 |
| Priority date | — |
| Expiry date | Mar 30, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49052
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for providing a magnetic recording transducer is disclosed. The method includes providing a first pole having front and rear portions and a back gap on the rear portion. The method also includes providing an insulator on the first pole. The method includes providing a write gap and providing a portion of a second pole on at least the write gap. A portion of the write gap resides on the front portion of the first pole. A portion of the insulator covers a portion of the first pole between the portion of the second pole and the back gap. The method also includes providing a mask that covers the back gap and exposes the portion of the second pole and the insulator. The method also includes performing a pole trim that can substantially remove the portion of the insulator covering the remaining portion of the first pole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.