Uniformity in CCP magnetic read head devices
US7872838B2 · kind B2 · utility
5Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2007 |
| Grant date | Jan 18, 2011 |
| Priority date | — |
| Expiry date | Oct 24, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1121
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Improved performance uniformity among CPP magnetic read devices that include an oxide barrier has been achieved by fabricating the oxide layer from at least two separately formed CCP layers. Each CCP layer is given its own PIT and IAO treatment which is of shorter duration than the PIT/IAO treatment that is used when only a single CCP layer is formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.