Read sensitivity MR head using permanent magnet longitudinal sta

Details Read sensitivity MR head using permanent magnet longitudinal sta Read sensitivity MR head using permanent magnet longitudinal sta

1997-05-27

1998-04-07

Chea, Thorl

Etching a substrate: processes

Forming or treating article containing magnetically...

2960313, 324252, 338 32R, 360113, G01R 3302, G11C 1908

Patent

active

057360600

ABSTRACT:
A method of making an MR sensor having a nearly symmetric read sensitivity across the sensor by using permanent magnet boundary control. The sensor's MR element is patterned to eliminate portions of the MR element between the electrical contacts which contribute to undesired read sensitivity. The MR element is maintained in a single domain state using abutting permanent magnets electrically isolated from the MR element.

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