Method and apparatus for preventing ESD and EOS damage in manufacturing magnetoresistive effect read heads
US6914758B2 · kind B2 · utility
10Cited by
13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2003 |
| Grant date | Jul 5, 2005 |
| Priority date | — |
| Expiry date | Jan 5, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/3996
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetoresistive head apparatus includes first and second readers. The first reader is a magnetoresistive reader. The second reader provides electrostatic discharge protection for the first magnetoresistive reader. The second reader can be a second magnetoresistive reader having substantially the same film structure as the first reader. The second reader can also include a phase change thin film, which has high and low resistance states that are changeable using a laser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.