Patent ID: 9349397
Filing Date: 2016-05-24
CPC Classification: G01R,G11B,H01L,Y10T

Claim Text:
1. A magnetoresistive (MR) read head, comprising: a fixed layer comprising a first ferromagnetic material that has a direction of magnetization that is fixed; a free layer comprising a second ferromagnetic material positioned above the fixed layer, the free layer having a direction of magnetization that is not fixed, wherein the fixed layer extends beyond both sides of the free layer in a cross-track direction, and wherein the fixed layer extends beyond a back side of the free layer in an element height direction perpendicular to the cross-track direction; and magnetic domain control films positioned on both sides of the free layer at a media-facing surface in the cross-track direction, the magnetic domain control films comprising a soft magnetic material, wherein the fixed layer extends beyond both sides of the magnetic domain control films in the cross-track direction.