Spin valve sensor for high areal density applications

Details Spin valve sensor for high areal density applications Spin valve sensor for high areal density applications

2006-04-11

2006-04-11

Letscher, George (Department: 2653)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

07027270

ABSTRACT:
The magnetoresistive sensor has a bottom shield, a nonmagnetic metallic pedestal, a bottom reader gap, a biasing element, a magnetoresistive stack, current leads, a top reader gap, and a top shield. The nonmagnetic metallic pedestal is positioned on a portion of the bottom shield and the nonmagnetic metallic pedestal has a width less than the width of the bottom shield. The bottom reader gap is positioned on the nonmagnetic metallic pedestal and on the bottom shield such that a portion of the bottom reader gap over the nonmagnetic metallic pedestal is raised relative to portions of the bottom reader gap not over the nonmagnetic metallic pedestal.

REFERENCES:
patent: 5707538 (1998-01-01), Shen et al.
patent: 5880910 (1999-03-01), Shouji et al.
patent: 5972420 (1999-10-01), Saito et al.
patent: 6094325 (2000-07-01), Tagawa et al.
patent: 6201465 (2001-03-01), Saito et al.
patent: 6229678 (2001-05-01), Xue et al.
patent: 2001/0014001 (2001-08-01), Aoshima et al.
patent: 2004/0037014 (2004-02-01), Mauri et al.
“Allicat Magnetoresistive Head Design and Performance”, IEEE Transactions on Magnetics, vol. 30, No. 2, Mar. 1994.
“Stability and Biasing Characteristics of A Permanent Magnet Biased SAL/MR Device”, IEEE Transactions on Magnetics, vol. 30, No. 6, Nov. 1994.
“The Era of Giant Magnetoresistive Heads”, http://www.strorage.ibm.com/hdd/technolo/gmr/gmr.htm.

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