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Title:
READ-OUT METHOD OF DOUBLE JUNCTION MAGNETIC MEMORY DEVICE AND WRITE-IN METHOD TO DOUBLE JUNCTION MAGNETIC MEMORY DEVICE
Document Type and Number:
Japanese Patent JP2008097811
Kind Code:
A
Abstract:

To improve the reliability of a readout operation in a magnetic memory device.

The method for reading out the magnetic memory device (8) includes: steps (310, 312) of measuring a first resistance of the magnetic memory device by facing magnetization of combined reference layers to a first stable direction; steps (314, 316) of measuring a second resistance of the magnetic memory device by facing magnetization of the combined reference layer to a second stable direction; and steps (318, 320) of determining a logical value stored in the magnetic memory device by using the measured first resistance and second resistance. The logical value is determined (320) by inspecting a polarity of a difference between measured values of resistances.


Inventors:
PERNER FREDERICK A
SHARMA MANISH
BHATTACHARYYA MANOJ
Application Number:
JP2007264988A
Publication Date:
April 24, 2008
Filing Date:
October 10, 2007
Export Citation:
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Assignee:
SAMSUNG ELECTRONICS CO LTD
International Classes:
G11C11/15; G11C11/16; H01L21/8246; H01L27/105; H01L43/08
Domestic Patent References:
JP2001313377A2001-11-09
JP2004104127A2004-04-02
JP2001237472A2001-08-31
JP2001077442A2001-03-23
JP2001325791A2001-11-22
JP2001313377A2001-11-09
JP2004104127A2004-04-02
JP2001237472A2001-08-31
JP2001077442A2001-03-23
JP2001325791A2001-11-22
Attorney, Agent or Firm:
Mikio Hatta
Yasuo Nara
Katsuyuki Utani



 
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