Magnetic sensor with electrically defined active area dimensions
US7719802B2 · kind B2 · utility
7Cited by
5References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2003 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Nov 27, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0018
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic sensor having adjustable electrical dimensions, such as electrical read width and electrical stripe height, is disclosed. The magnetic sensor includes a sensor stack with one or more bias electrodes positioned with respect to the sensor stack. The electrical width or electrical stripe height of the sensor stack is a function of a voltage applied to the bias electrodes. The electric field produced by the bias electrodes alters the electrical profile of the magnetoresistive device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.