Invention Grant
- Patent Title: Increased magnetic damping for toggle MRAM
- Patent Title (中): 增加用于切换MRAM的磁阻尼
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Application No.: US12046519Application Date: 2008-03-12
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Publication No.: US07920416B2Publication Date: 2011-04-05
- Inventor: William J. Gallagher , Daniel C. Worledge
- Applicant: William J. Gallagher , Daniel C. Worledge
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Michael J. Chang, LLC
- Agent Vazken Alexanian
- Main IPC: G11C11/14
- IPC: G11C11/14

Abstract:
Magnetic random access memory (MRAM) devices and techniques for use thereof are provided. In one aspect, a magnetic memory cell is provided. The magnetic memory cell comprises at least one fixed magnetic layer; at least one first free magnetic layer separated from the fixed magnetic layer by at least one barrier layer; at least one second free magnetic layer separated from the first free magnetic layer by at least one spacer layer; and at least one capping layer over a side of the second free magnetic layer opposite the spacer layer. One or more of the first free magnetic layer and the second free magnetic layer comprise at least one rare earth element, such that the at least one rare earth element makes up between about one percent and about 10 percent of one or more of the first free magnetic layer and the second free magnetic layer.
Public/Granted literature
- US20090235018A1 Increased Magnetic Damping for Toggle MRAM Public/Granted day:2009-09-17
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