Title:
MAGNETORESISTIVE EFFECT ELEMENT
Document Type and Number:
Japanese Patent JP3691920
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To enhance the soft magnetic characteristics by intersecting the magnetizing direction of two ferromagnetic films substantially perpendicularly in the case of zero signal field and conducting a sense current in the direction of signal field.
SOLUTION: A ferromagnetic CoFe film 11, an intermediate nonmagnetic Cu film 12, a ferrormagnetic CoFe film 11, an antiferromagnetic FeMn film 13 and a protective film of Ti 14 are deposited sequentially on a sapphire substrate 10. Two ferromagnetic films 11 serve as a magnetization fixing film for keeping the magnetizing direction substantially even upon application of a signal field and a field detection film for detecting the signal field causing variation of magnetization, respectively. When the signal field is zero, magnetizing direction of two ferromagnetic films 11 intersect perpendicularly to each other thus conducting a sense current in the direction of signal field. This arrangement enhances the soft magnetic characteristics.
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Inventors:
Hitoshi Iwasaki
Yuichi Osawa
Reiko Kondo
Susumu Hashimoto
Atsushi Sawabe
Yuzo Ueguchi
Masashi Sahashi
Yuichi Osawa
Reiko Kondo
Susumu Hashimoto
Atsushi Sawabe
Yuzo Ueguchi
Masashi Sahashi
Application Number:
JP33192296A
Publication Date:
September 07, 2005
Filing Date:
December 12, 1996
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
G11B5/39; G01R33/09; H01F10/08; H01F10/12; H01F10/13; H01F10/18; H01F10/187; H01F10/32; H01L43/08; (IPC1-7): H01L43/08; G01R33/09; G11B5/39; H01F10/08; H01F10/32
Domestic Patent References:
| JP6060336A |
Foreign References:
| US5159513 |
Attorney, Agent or Firm:
Takehiko Suzue
Sadao Muramatsu
Atsushi Tsuboi
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Shoji Kawai
Sadao Muramatsu
Atsushi Tsuboi
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Shoji Kawai