Patent ID: 6129957
Filing Date: 2000-10-10
Classification: B82Y,G11B,H01F,Y10S,Y10T

Abstract:
A method of manufacturing a magnetoresistive head comprising the steps as follows:forming a magnetoresistive (MR) structure with a magnetoresistive element with a first AFM element,performing a first annealing step upon said MR structure at a high temperature with a high magnetic field,completing formation of said MR structure including a second AFM element,performing a low magnetic field (H.sub.ann) annealing step upon said MR structure following the fabrication of said second AFM element, andperforming a no externally applied field (H.sub.ann =0) annealing step upon said MR structure at a high temperature to increase the H.sub.ex of said second AFM element to full strength,whereby the stability of the first AFM element is enhanced or increases its Hex if there were a decrease during the low magnetic field annealing.