3Spin-Transfer Torque RAM
Spin-transfer torque random-access memory (STT-RAM) is a type of magnetic RAM (MRAM) that uses a magnetic device to store data. Traditional MRAM technology, also called toggle-mode MRAM, uses a current-induced magnetic field to switch the data stored in the magnetic pillars. Toggle-mode MRAM faces severe scaling issues because the current required to generate the magnetic field increases as the magnetic pillar becomes smaller. STT-RAM, which is based on spin-polarized current-induced magnetic tunneling junction (MTJ) switching, has attracted a lot of attention due to its fast speed, low power consumption, and better scalability.
3.1 Introduction of Spin -Transfer Torque Technology
3.1.1 Spin-Transfer Torque Theory ...
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