SPIN ORBIT MEMORY DEVICES WITH REDUCED MAGNETIC MOMENT AND METHODS OF FABRICATION

    公开(公告)号:US20200312908A1

    公开(公告)日:2020-10-01

    申请号:US16367133

    申请日:2019-03-27

    Abstract: A spin orbit memory device includes a material layer stack on a spin orbit electrode. The material layer stack includes a magnetic tunnel junction (MTJ) and a synthetic antiferromagnetic (SAF) structure on the MTJ. The SAF structure includes a first magnet structure and a second magnet structure separated by an antiferromagnetic coupling layer. The first magnet structure includes a first magnet and a second magnet separated by a single layer of a non-magnetic material such as platinum. The second magnet structure includes a stack of bilayers, where each bilayer includes a layer of platinum on a layer of a magnetic material such.

    SPIN ORBIT TORQUE MEMORY DEVICES AND METHODS OF FABRICATION

    公开(公告)号:US20200227105A1

    公开(公告)日:2020-07-16

    申请号:US16246362

    申请日:2019-01-11

    Abstract: A memory device includes a spin orbit electrode structure having a dielectric structure including a first sidewall, a second sidewall opposite to the first sidewall, a top surface. The spin orbit electrode structure further includes an electrode having a spin orbit material adjacent to the dielectric structure, where the electrode has a first electrode portion on the top surface, a second electrode portion adjacent to the first sidewall and a third electrode portion adjacent to the second sidewall. The first electrode portion, the second electrode portion and the third electrode portion are contiguous. The spin orbit electrode structure further includes a conductive interconnect in contact with the second electrode portion or the third electrode portion. The memory device further includes a magnetic junction device on a portion of the top surface of the first electrode portion.

    FERROELECTRIC TRANSISTORS TO STORE MULTIPLE STATES OF RESISTANCES FOR MEMORY CELLS

    公开(公告)号:US20200212224A1

    公开(公告)日:2020-07-02

    申请号:US16232615

    申请日:2018-12-26

    Abstract: Embodiments herein describe techniques for a semiconductor device including a gate stack with a ferroelectric-oxide layer above a channel layer and in contact with the channel layer, and a top electrode above the ferroelectric-oxide layer. The ferroelectric-oxide layer includes a domain wall between an area under a nucleation point of the top electrode and above a separation line of the channel layer between an ON state portion and an OFF state portion of the channel layer. A resistance between a source electrode and a drain electrode is modulated in a range between a first resistance value and a second resistance value, dependent on a position of the domain wall within the ferroelectric-oxide layer, a position of the ON state portion of the channel layer, and a position of the OFF state portion of the channel layer. Other embodiments may be described and/or claimed.

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