Apparatuses and methods to control operations performed on resistive memory cells

    公开(公告)号:US10515697B1

    公开(公告)日:2019-12-24

    申请号:US16023728

    申请日:2018-06-29

    Abstract: Some embodiments include apparatuses having a resistive memory device and methods to apply a combination of voltage stepping current stepping and pulse width stepping during an operation of changing a resistance of a memory cell of the resistive memory device. The apparatuses also include a write termination circuit to limit drive current provided to a memory cell of the resistive memory device during a particular time of an operation performed on the memory cell. The apparatuses further include a programmable variable resistor and resistor control circuit that operate during sensing operation of the memory device.

    LOW RESISTANCE BITLINE AND SOURCELINE APPARATUS FOR IMPROVING READ AND WRITE OPERATIONS OF A NONVOLATILE MEMORY
    20.
    发明申请
    LOW RESISTANCE BITLINE AND SOURCELINE APPARATUS FOR IMPROVING READ AND WRITE OPERATIONS OF A NONVOLATILE MEMORY 审中-公开
    用于改善非易失性存储器的读取和写入操作的低电阻位线和电源设备

    公开(公告)号:US20170018298A1

    公开(公告)日:2017-01-19

    申请号:US15280935

    申请日:2016-09-29

    Abstract: Described is an apparatus for improving read and write margins. The apparatus comprises: a sourceline; a first bitline; a column of resistive memory cells, each resistive memory cell of the column coupled at one end to the sourceline and coupled to the first bitline at another end; and a second bitline in parallel to the first bitline, the second bitline to decouple read and write operations on the bitline for the resistive memory cell. Described is also an apparatus which comprises: a sourceline; a bitline; a column of resistive memory cells, each resistive memory cell in the column coupled at one end to the sourceline and coupled to the bitline at another end; and sourceline write drivers coupled to the bitline and the sourceline, wherein the sourceline write drivers are distributed along the column of resistive memory cells.

    Abstract translation: 描述了一种用于提高读写余量的装置。 该装置包括:源线; 第一个位线 一列电阻存储器单元,该列的每个电阻存储器单元在一端耦合到源极线并且在另一端耦合到第一位线; 以及与所述第一位线并联的第二位线,所述第二位线用于解耦所述电阻存储器单元的位线上的读取和写入操作。 还描述了一种装置,其包括:源线; 有位 一列电阻存储器单元,列中的每个电阻存储器单元在一端耦合到源极线并且在另一端耦合到位线; 以及耦合到位线和源极线的源极线写入驱动器,其中源极线写入驱动器沿着电阻存储器单元的列分布。

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