Trilayer reader with current constraint at the ABS
US8390963B2 · kind B2 · utility
13Cited by
30References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2011 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Apr 25, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/098
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetoresistive read sensor is described. The sensor is a magnetically responsive stack positioned between top and bottom electrodes on an air bearing surface. Current in the sensor is confined to regions close to the air bearing surface by a first multilayer insulator structure between the stack and at least one electrode to enhance reader sensitivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.