Method of fabricating a magnetic transducer with a write head having a multi-layer coil
US6804879B2 · kind B2 · utility
15Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2002 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Jan 9, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49064
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for producing a magnetic transducer with a inductive write head having a multilayer coil with a high aspect ratio and a short yoke is provided. A damascene process is used for two coil layers and a conventional process for the third coil layer. The process of the invention allows a seed layer for the coil to be deposited on the side walls of the trenches for the first and second coil layers. In one embodiment the seed layer for the coil is preceded by an adhesion layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.