Multiple CCP layers in magnetic read head devices
US7990660B2 · kind B2 · utility
2Cited by
10References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2011 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Jan 14, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1121
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An improved CPP magnetic read device whose oxide barrier comprises at least two separate CCP layers is disclosed. These two CCP layers differ in the PIT and IAO treatments that they received relative to the PIT/IAO treatment that would be used when only a single CCP layer is formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.