Invention Grant
- Patent Title: Non-volatile memory with stray magnetic field compensation
- Patent Title (中): 具有杂散磁场补偿的非易失性存储器
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Application No.: US12326274Application Date: 2008-12-02
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Publication No.: US07940600B2Publication Date: 2011-05-10
- Inventor: Dimitar Dimitrov , Olle Gunnar Heinonen , Dexin Wang , Haiwen Xi
- Applicant: Dimitar Dimitrov , Olle Gunnar Heinonen , Dexin Wang , Haiwen Xi
- Applicant Address: US CA Scotts Valley
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Scotts Valley
- Agency: Campbell Nelson Whipps LLC
- Main IPC: G11C8/00
- IPC: G11C8/00

Abstract:
A method and apparatus for stray magnetic field compensation in a non-volatile memory cell, such as a spin-torque transfer random access memory (STRAM). In some embodiments, a first tunneling barrier is coupled to a reference structure that has a perpendicular anisotropy and a first magnetization direction. A recording structure that has a perpendicular anisotropy is coupled to the first tunneling barrier and a nonmagnetic spacer layer. A compensation layer that has a perpendicular anisotropy and a second magnetization direction in substantial opposition to the first magnetization direction is coupled to the nonmagnetic spacer layer. Further, the memory cell is programmable to a selected resistance state with application of a current to the recording structure.
Public/Granted literature
- US20100135067A1 NON-VOLATILE MEMORY WITH STRAY MAGNETIC FIELD COMPENSATION Public/Granted day:2010-06-03
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