Patent ID: 6163437
Filing Date: 2000-12-19
Classification: B82Y,G11B

Abstract:
A method of manufacturing a magnetic head with a spin valve effect magnetoresistive element, said method comprising the steps of:forming a plurality of spin valve effect magnetoresistive elements on a substrate, each of said spin valve effect magnetoresistive elements including two ferromagnetic material layers separated by a non-magnetic material layer and an antiferromagnetic material layer formed in contact with one of said two ferromagnetic material layers;forming a plurality of pairs of lead conductors connected with said respective spin valve effect magnetoresistive elements on said substrate; andforming a plurality of protection circuits of magnetization inversion connected between said respective pairs of lead conductors on said substrate,wherein the step of forming said plurality of protection circuits of magnetization inversion is performed so that each of said protection circuits of magnetization inversion turns on when said protection circuits receive an energy with a level at which a pinned direction inversion in each of said spin valve effect magnetoresistive elements occurs.