Stack with wide seed layer
US8822046B2 · kind B2 · utility
3Cited by
13References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2012 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Aug 2, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1143
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A stack having a seed layer structure with a first part having a first cross-track width and a free layer deposited over the seed layer structure and with a second cross-track width, wherein the first cross-track width is greater than the second cross-track width. In one implementation, the seed layer structure further comprises an antiferromagnetic (AFM) layer and a synthetic antiferromagnetic (SAF) layer. In one alternate implementation, the cross-track width of the seed layer structure is substantially equal to the combined cross-track width of the free layer and cross-track width of two permanent magnets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.