Patent ID: 6181532
Filing Date: 2001-01-30
Classification: G01R,G03F,G11B

Abstract:
A magnetoresistive (MR) read head, comprising:an MR sensor having first and second surfaces bounded by first and second end edges and first and second side edges, the first end edge being at an air bearing surface;a flux/heat guide material bilayer which overlays an insulation material layer;the flux/heat guide material bilayer including a flux guide material layer and a heat guide material layer;the flux/heat guide material bilayer forming a contiguous junction with the second end edge of the MR sensor and having a length portion which extends from the contiguous junction away from the air bearing surface;the contiguous junction comprising the flux/heat guide material bilayer abutting the second end edge of the MR sensor and overlapping an end portion of the first surface of the MR sensor adjacent the second end edge with the insulation material layer being sandwiched between the MR sensor and the flux/heat guide material bilayer;the MR sensor and the flux/heat guide material bilayer being sandwiched between first and second gap layers;the first and second gap layers being sandwiched between first and second shield layers;each of the insulation material layer and the flux/heat guide material bilayer having an overlapping portion which forms the overlap of said flux/heat guide material bilayer on the end portion of the MR sensor; andeach of said overlapping portions being tapered toward the air bearing surface.