Patent ID: 6725527
Filing Date: 2004-04-27
Classification: G11B,Y10T

Abstract:
A method of making a magnetic head assembly on a flat film surface of a substrate wherein the assembly has a read head and a write head that have a track width and that form a portion of an air bearing surface (ABS) at a forward end of the assembly comprising in unordered sequence:a making of the write head including: forming ferromagnetic first and second pole piece portions that extend from the ABS to a back gap site and that, when projected in a plane parallel to said film surface of the substrate, extend about an opening; forming a nonmagnetic write gap layer between the first and second pole piece portions at the ABS; forming a nonmagnetic electrically conductive write coil extending about one of the first and second pole piece portions and thence about the other of the first and second pole piece portions; a making of the read head including: forming a read sensor between first and second nonmagnetic electrically insulative read gap layers; forming a ferromagnetic first shield layer with the first and second gap layers being located between the first shield layer and the first pole piece portion of the write head.