Claims
- 1. A magnetoresistive read sensor comprising:a gap layer; a soft adjacent layer positioned on a center region of the gap layer, thereby forming an active region, where first and second outside regions of the gap layer are separated by the center region; a spacer layer positioned on the soft adjacent layer in the active region; a cubic-titanium-tungsten underlayer on the first and second outside regions of the sensor, thereby forming first and second passive regions separated by the active region; a hard-biasing material positioned on the cubic-titanium-tungsten underlayer in the first and second passive regions; and a magnetoresistive layer positioned on the spacer layer in the active region.
- 2. The magnetoresistive read sensor of claim 1 and further comprising a cap layer positioned on the magnetoresistive layer in the active region and on the hard-biasing material in the first and second passive regions.
- 3. The magnetoresistive read sensor of claim 2 and further comprising a plurality of contacts positioned on the cap layer in the first and second passive regions.
- 4. The magnetoresistive read sensor of claim 1 wherein the magnetoresistive layer is formed from a soft-magnetic material having a resistivity less than 100 μΩ-cm.
- 5. The magnetoresistive read sensor of claim 1 wherein the spacer layer is formed from a non-magnetic material having a resistivity of at least 100 μΩ-cm.
- 6. The magnetoresistive read sensor of claim 1 wherein the soft adjacent layer is formed from a soft-magnetic material having a resistivity of at least 100 μΩ-cm.
- 7. The magnetoresistive read sensor of claim 1 wherein the magnetoresistive layer is positioned on the spacer layer and the hard-biasing material, thereby extends over the active region and the first and second passive regions.
- 8. The magnetoresistive read sensor of claim 7 and further comprising a cap layer positioned on the magnetoresistive layer in the active region and the first and second passive regions.
- 9. The magnetoresistive read sensor of claim 8 and further comprising a plurality of contacts positioned on the cap layer in the first and second passive regions.
- 10. The magnetoresistive read sensor of claim 7 wherein the magnetoresistive layer is formed from a soft-magnetic material having a resistivity less than 100 μΩ-cm.
- 11. The magnetoresistive read sensor of claim 7 wherein the spacer layer is formed from a non-magnetic material having a resistivity of at least 100 μΩ-cm.
- 12. The magnetoresistive read sensor of claim 7 wherein the soft adjacent layer is formed from a soft-magnetic material having a resistivity of at least 100 μΩ-cm.
CROSS-REFERENCE TO RELATED APPLICATION(S)
This Application claims the priority benefit of Provisional U.S. Patent Application Serial No. 60/072,766, filed Jan. 27, 1998.
US Referenced Citations (5)
Number |
Name |
Date |
Kind |
5434826 |
Ravipati et al. |
Jul 1995 |
|
5491600 |
Chen et al. |
Feb 1996 |
|
5495378 |
Bonyhard et al. |
Feb 1996 |
|
5876843 |
Ishiwata |
Mar 1999 |
|
5959810 |
Kakihara et al. |
Sep 1999 |
|
Provisional Applications (1)
|
Number |
Date |
Country |
|
60/072766 |
Jan 1998 |
US |