Patent ID: 6104576
Filing Date: 2000-08-15
Classification: G11B,Y10T

Abstract:
A magnetic head having a top and a bottom and front and rear ends and an air bearing surface (ABS) that defines the front end, comprising:first and second pole pieces, the second pole piece being located above the first pole piece;a write gap layer;the first and second pole pieces being separated by the write gap layer at the ABS and connected at a back gap that is recessed rearwardly in the head from the ABS;a zero throat height (ZTH) defining insulation layer sandwiched between the first and second pole pieces and having a front end where the first and second pole pieces first separate from one another after the ABS in a direction from the ABS toward the back gap to define a ZTH;said gap layer being located on the ZTH defining insulation layer between the ZTH defining insulation layer and the second pole piece;an insulation stack and at least one coil layer embedded in the insulation stack between a first insulation layer and a second insulation layer disposed over the first insulation layer;the insulation stack and the coil layer being located between the first and second pole pieces; andthe ZTH defining insulation layer being located entirely between the ABS and the coil layer.