Title:
GRANULAR MULTILAYER MAGNETORESISTANCE SENSOR
Document Type and Number:
Japanese Patent JP2669595
Kind Code:
B2
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.
Inventors:
Kevin Robert Coffey
James Kent Howard
Todd Rainier Hilton
Michael Andrew Parker
James Kent Howard
Todd Rainier Hilton
Michael Andrew Parker
Application Number:
JP7349694A
Publication Date:
October 29, 1997
Filing Date:
April 12, 1994
Export Citation:
Assignee:
International Business Machines Corporation
International Classes:
G01R33/09; G11B5/39; H01F10/08; H01F10/14; H01F10/32; H01L43/08; H01L43/10; (IPC1-7): H01L43/08; G01R33/09; G11B5/39; H01F10/14
Domestic Patent References:
| JP697534A | ||||
| JP6140687A |
Attorney, Agent or Firm:
Kiyoshi Goda (2 outside)
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