Method of making an antiparallel (AP) pinned spin valve sensor with giant magnetoresistive (GMR) enhancing layer

摘要

A method of making a read head includes forming a spin valve sensor with an antiparallel pinned layer that has an AP coupling film located between and interfacing first and second ferromagnetic films wherein the first and second ferromagnetic films are composed of Co90Fe10. Another aspect forms the spin valve sensor with a free layer which has a nickel iron (NiFe) film located between and interfacing third and fourth ferromagnetic films composed of Co90Fe10. Still another aspect forms the spin valve sensor with a sense current field (SCF) pinned layer that is spaced from the free layer and is pinned by sense current fields from other conductive layers of the spin valve sensor.