Invention Grant
- Patent Title: Self-referenced MRAM element with linear sensing signal
- Patent Title (中): 具有线性感测信号的自参考MRAM元件
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Application No.: US13761292Application Date: 2013-02-07
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Publication No.: US08797793B2Publication Date: 2014-08-05
- Inventor: Lucien Lombard , Kenneth MacKay , Ioan Lucian Prejbeanu
- 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: EP12290043 20120208
- Main IPC: G11C11/15
- IPC: G11C11/15

Abstract:
The present disclosure concerns a self-referenced MRAM element, comprising a magnetic tunnel junction having a magnetoresistance, comprising: a storage layer having a storage magnetization that is pinned along a first direction when the magnetic tunnel junction is at a low temperature threshold; a sense layer having a sense magnetization; and a tunnel barrier layer included between the storage layer and the sense layer; and an aligning device arranged for providing the sense magnetization with a magnetic anisotropy along a second direction that is substantially perpendicular to the first direction such that the sense magnetization is adjusted about the second direction; the aligning device being further arranged such that, when a first read magnetic field is provided, a resistance variation range of the magnetic tunnel junction is at least about 20% of the magnetoresistance. The self-referenced MRAM cell can be read with an increased reliability and has reducing power consumption.
Public/Granted literature
- US20130201756A1 Self-Referenced MRAM Element with Linear Sensing Signal Public/Granted day:2013-08-08
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