Method and system for providing a wrap-around shield using a patterned seed layer
US8409453B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2010 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Jan 23, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3163
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and system for fabricating magnetic recording transducer are described. The magnetic recording transducer has a main pole, a nonmagnetic gap covering the main pole, and a field region distal from the main pole. A portion of the nonmagnetic gap resides on the top of the main pole. The method and system include providing a patterned seed layer. A thick portion of the patterned seed layer is thicker than a thin portion of the patterned seed layer. At least part of the thick portion of the patterned seed layer resides on a portion of the field region. A wrap-around shield is on the patterned seed layer. At least part of the thin portion of the patterned seed layer is in proximity to and exposed by the wrap-around shield. The method and system also include field etching the field region distal from the wrap-around shield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.