Damascene process for fabricating poles in recording heads
US7444740B1 · kind B1 · utility
186Cited by
13References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2005 |
| Grant date | Nov 4, 2008 |
| Priority date | — |
| Expiry date | Feb 17, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49052
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and system for manufacturing a pole for a magnetic recording head. The method and system include providing an insulator and fabricating at least one hard mask on the insulator. The at least one hard mask has an aperture therein. The method and system also include removing a portion of the insulator to form a trench within the insulator. The trench is formed under the aperture. The method and system further include depositing at least one ferromagnetic material. The pole includes a portion of the ferromagnetic material within the trench.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.