公开(公告)号：JPH06326377A

公开(公告)日：1994-11-25

申请号：JP7349694

申请日：1994-04-12

Applicant: IBM

Inventor： KEBIN ROBAATO KOFUII ,  JIEEMUZU KENTO HAWAADO ,  TOTSUDO REENIE HIRUTON ,  MAIKERU ANDORIYUU PAAKAA

IPC: G01R33/09 ,  G11B5/39 ,  H01F10/08 ,  H01F10/14 ,  H01F10/32 ,  H01L43/08 ,  H01L43/10 ,  G01R33/06

Abstract: PURPOSE: To obtain a low magnetic field magnetoresistance sensor by the huge magnetoresistance effect by providing a magnetoresistance sensing elements containing a non-continuous layer made of ferromagnetic material buried in a non-magnetic conductive material. CONSTITUTION: A magnetoresistance(MR) sensing elements 41 in granular multilayer magnetic structure include a layer or plane of multiple platelike grains 31. The magnetic moment of the grains 31 is partially oriented along the inductive anisotropic axis as shown by an arrow 47 to be inducted in the MR sensing elements 41. The bias magnetic field by a bias layer 45 arrays the moment of the grains 31 in a desired direction so as to adjust the operating points of an MR sensor 40 to be a linear part of responsive characteristics. In such a constitution, the MR sensor 40 is suspended on a data truck 44 thereby enabling the magnetic field H in data transition 46 to be applied on the plane of the MR sensing elements 41.