Magnetic recording head front shield formation
US9495979B1 · kind B1 · utility
3Cited by
13References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2015 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Sep 30, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3163
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Implementations disclosed herein provide a method of forming a first layer of a front shield in a magnetic recording head, depositing an active shield control (ASC) device on the first layer, and forming a second layer of the front shield on top of the ASC device and the first layer of the front shield. In another implementation, an apparatus includes a write pole, and a two layer front shield formed on the write pole, including an ASC device between the two layers of the front shield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.