Patent ID: 6757141
Filing Date: 2004-06-29
Classification: G11B

Abstract:
A magnetic write head having an air bearing surface (ABS), comprising:ferromagnetic first and second pole pieces wherein each pole piece has a back gap that is recessed from the ABS and wherein the back gaps of the first and second pole piece layers are magnetically connected; an insulation stack located between the first and second pole pieces and further located between the ABS and the back gaps of the first and second pole pieces; at least one coil layer embedded in the insulation stack and spaced from the ABS; the second pole piece including a ferromagnetic shaping layer and a probe layer wherein the shaping layer is located between the insulation stack and the probe layer and is recessed from the ABS; the probe layer having a probe, a yoke and a back gap wherein the yoke is located between the probe and the back gap and wherein said back gap of the second pole piece includes the back gap of the probe layer; an insulation layer located between the ABS and the shaping layer and forming a portion of the ABS and further being located between the probe and the insulation stack; and the probe forming a portion of the ABS and having a width that defines a track width of the write head.