Memory cells, methods of fabrication, semiconductor device structures, and memory systems

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United States of America Patent

PATENT NO 9379315
SERIAL NO

13797185

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Abstract

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Magnetic memory cells, methods of fabrication, semiconductor device structures, and memory systems are disclosed. A magnetic cell core includes at least one magnetic region (e.g., a free region or a fixed region) configured to exhibit a vertical magnetic orientation, at least one oxide-based region, which may be a tunnel junction region or an oxide capping region, and at least one magnetic interface region, which may comprise or consist of iron (Fe). In some embodiments, the magnetic interface region is spaced from at least one oxide-based region by a magnetic region. The presence of the magnetic interface region enhances the perpendicular magnetic anisotropy (PMA) strength of the magnetic cell core. In some embodiments, the PMA strength may be enhanced more than 50% compared to that of the same magnetic cell core structure lacking the magnetic interface region.

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Patent Owner(s)

  • MICRON TECHNOLOGY, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Wei White Plains, US 1750 22206
Kula, Witold Gilroy, US 103 3055
Murthy, Sunil White Plains, US 6 76

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