Diego Favaro
Fabrication and characterization of 2D and 3D perpendicular nanomagnetic devices with CoFeB/MgO ultrathin films.
Rel. Marco Vacca, Mariagrazia Graziano. Politecnico di Torino, Corso di laurea magistrale in Nanotechnologies For Icts (Nanotecnologie Per Le Ict), 2021
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Abstract
According to the International Technology Roadmap of Semiconductors (ITRS), the complementary metal-oxide-semiconductor (CMOS) technology era is reaching its technological and economical limits. Several new approaches and technologies are investigated by industry and academia with the aim to replace the CMOS technology or to implement hybrid integrated circuits (ICs). Among these, perpendicular Nanomagnetic Logic (pNML) seems to be very promising. This technology can combine memory and logic computing capability in the same device, giving the possibility to overcome the von Neumann bottleneck. pNLM exploits nanomagnets able to store digital binary information (1 and 0) encoded in their bistable perpendicular magnetization state (up/down), and to directly modify these magnetic states by magnetic field interaction between neighboring magnets.
This work investigates the principles of pNML and proves the reliability of this new technology, focusing on a new magnetic material stack, Ta/CoFeB/MgO/Ta ultrathin film
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