Invention Grant
- Patent Title: Magnetic memory
- Patent Title (中): 磁记忆
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Application No.: US11743241Application Date: 2007-05-02
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Publication No.: US07668005B2Publication Date: 2010-02-23
- Inventor: Yoshihiro Ueda
- Applicant: Yoshihiro Ueda
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2006-217331 20060809
- Main IPC: G11C11/00
- IPC: G11C11/00

Abstract:
A magnetic memory includes a plurality of magnetoresistive elements which include a fixed layer in which a magnetization direction is fixed, a free layer in which a magnetization direction changes, and a nonmagnetic layer formed between the fixed layer and the free layer, and a word line electrically connected to the magnetoresistive elements. Data erase is performed by setting the magnetization direction of the free layer in a first direction by a magnetic field induced by a current flowing through the word line, and data of the magnetoresistive elements are erased by one time data erase. Data write is performed by setting the magnetization direction of the free layer in a second direction by spin-transfer magnetization reversal by supplying a current in one direction to the magnetoresistive elements.
Public/Granted literature
- US20080037314A1 MAGNETIC MEMORY Public/Granted day:2008-02-14
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