Invention Grant
- Patent Title: Perpendicular SOT-MRAM memory cell using spin swapping induced spin current
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Application No.: US16217292Application Date: 2018-12-12
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Publication No.: US10726893B2Publication Date: 2020-07-28
- Inventor: Goran Mihajlovic , Oleksandr Mosendz
- Applicant: SANDISK TECHNOLOGIES LLC
- Applicant Address: US TX Addison
- Assignee: SANDISK TECHNOLOGIES LLC
- Current Assignee: SANDISK TECHNOLOGIES LLC
- Current Assignee Address: US TX Addison
- Agency: Vierra Magen Marcus LLP
- Main IPC: G11C11/16
- IPC: G11C11/16 ; H01L27/22 ; H01L43/06 ; H01L43/08

Abstract:
A perpendicular spin orbit torque MRAM memory cell comprises a magnetic tunnel junction that includes a free layer in a plane, a ferromagnetic layer and a spacer layer between the ferromagnetic layer and the free layer. The free layer comprises a switchable direction of magnetization perpendicular to the plane. The ferromagnetic layer is configured to generate perpendicularly polarized spin current in response to an electrical current through the ferromagnetic layer and inject the perpendicularly polarized spin current through the spacer layer into the free layer to change the direction of magnetization of the free layer.
Public/Granted literature
- US20200043538A1 PERPENDICULAR SOT-MRAM MEMORY CELL USING SPIN SWAPPING INDUCED SPIN CURRENT Public/Granted day:2020-02-06
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