Patent ID: 6330128
Filing Date: 2001-12-11
Classification: G11B,Y10T

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