Write pole formed with evaporation deposition
US9286917B1 · kind B1 · utility
0Cited by
7References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 30, 2015 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Apr 30, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/3163
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A write pole may be formed by first depositing a dielectric layer onto a substrate and then patterning the dielectric layer to form a trench with a write pole shape. The trench is subsequently filled with the evaporation deposition of a magnetic material to form a write pole. The trench may have a greater depth dimension than width dimension.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.