Invention Grant
- Patent Title: Self-referenced magnetic random access memory element comprising a synthetic storage layer
- Patent Title (中): 包括合成存储层的自参照磁随机存取存储元件
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Application No.: US13711820Application Date: 2012-12-12
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Publication No.: US08743597B2Publication Date: 2014-06-03
- Inventor: Ioan Lucian Prejbeanu , Lucien Lombard , Quentin Stainer , Kenneth Mackay
- Applicant: Crocus Technology SA
- Applicant Address: FR Grenoble Cedex
- Assignee: Crocus Technology SA
- Current Assignee: Crocus Technology SA
- Current Assignee Address: FR Grenoble Cedex
- Agency: Pearne & Gordon LLP
- Priority: EP11290572 20111212
- Main IPC: G11C11/16
- IPC: G11C11/16 ; G11C11/00 ; G11C11/02 ; G11C11/15

Abstract:
The present disclosure concerns a MRAM element comprising a magnetic tunnel junction comprising: a storage layer, a sense layer, and a tunnel barrier layer included between the storage layer and the sense layer; the storage layer comprising a first magnetic layer having a first storage magnetization; a second magnetic layer having a second storage magnetization; and a non-magnetic coupling layer separating the first and second magnetic layers such that the first storage magnetization is substantially antiparallel to the second storage magnetization; the first and second magnetic layers being arranged such that: at a read temperature the first storage magnetization is substantially equal to the second storage magnetization; and at a write temperature which is higher than the read temperature the second storage magnetization is larger than the first storage magnetization. The disclosed MRAM element generates a low stray field when the magnetic tunnel junction is cooled at a low temperature.
Public/Granted literature
- US20130148419A1 SELF-REFERENCED MAGNETIC RANDOM ACCESS MEMORY ELEMENT COMPRISING A SYNTHETIC STORAGE LAYER Public/Granted day:2013-06-13
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