Memory device for reducing leakage current

    公开(公告)号:US10910030B2

    公开(公告)日:2021-02-02

    申请号:US16390170

    申请日:2019-04-22

    Abstract: A memory device including a normal memory cell array including a first magneto-resistance memory cell that is connected to a first bit line, a first source line, and a first word line, and configured to receive a selection voltage through the first word line, a monitor memory cell array including a second magneto-resistance memory cell that is connected to a first signal line and a second signal line, a gate of a cell transistor of which is configured to receive a non-selection voltage, and a body bias generator configured to sense a leakage current flowing through the first signal line and control a body voltage provided to each of a body of a cell transistor of the first magneto-resistance memory cell and a body of the cell transistor of the second magneto-resistance memory cell based on the leakage current may be provided.

    Integrated circuit memory device and method of operating same

    公开(公告)号:US10896709B2

    公开(公告)日:2021-01-19

    申请号:US16688481

    申请日:2019-11-19

    Inventor: Artur Antonyan

    Abstract: A memory device includes a memory cell array that includes memory cells, a row decoder that is connected with the memory cell array through word lines, a column decoder that is connected with the memory cell array through bit lines and source lines, and a write driver that outputs a write voltage in a write operation. The column decoder includes switches, which are respectively connected to the bit lines and are respectively connected to the source lines. During the write operation, a selected switch of the switches transfers the write voltage to a selected bit line of the bit lines. Each unselected switch of the switches electrically separates the write driver from a corresponding unselected bit line of the bit lines by using the write voltage.

    Nonvolatile memory device and operating method

    公开(公告)号:US11217305B2

    公开(公告)日:2022-01-04

    申请号:US17007594

    申请日:2020-08-31

    Inventor: Artur Antonyan

    Abstract: A nonvolatile memory device includes; a memory cell array including memory cells connected with bit lines and feedback cells connected with feedback bit lines, a row decoder connected with the memory cells and the feedback cells through word lines, a column decoder connected with the memory cells through the bit lines and connected with the feedback cells through the feedback bit lines, and a charge pump that generates a pump voltage provided to a selected word line among the word lines, wherein the charge pump is controlled in response to feedback currents flowing through the feedback bit lines.

    MEMORY DEVICE INCLUDING VARIABLE REFERENCE RESISTOR AND METHOD OF CALIBRATING THE VARIABLE REFERENCE RESISTOR

    公开(公告)号:US20210383844A1

    公开(公告)日:2021-12-09

    申请号:US17120405

    申请日:2020-12-14

    Inventor: Artur Antonyan

    Abstract: A memory device includes a cell array including a memory cell that includes a variable resistance element, a reference resistor configured to provide a resistance varying according to an adjustment code, and a read circuit configured to read data that is stored in the memory cell, based on a resistance of the variable resistance element and the resistance of the reference resistor. The memory device further includes a reference adjustment circuit configured to obtain a first calibration code corresponding to a temperature variation, and a second calibration code corresponding to a process variation, and perform an arithmetic operation on the obtained first calibration code and the obtained second calibration code, to obtain the adjustment code.

    Integrated circuit memory device with write driver and method of operating same

    公开(公告)号:US10535392B2

    公开(公告)日:2020-01-14

    申请号:US16014011

    申请日:2018-06-21

    Inventor: Artur Antonyan

    Abstract: A memory device includes a memory cell array that includes memory cells, a row decoder that is connected with the memory cell array through word lines, a column decoder that is connected with the memory cell array through bit lines and source lines, and a write driver that outputs a write voltage in a write operation. The column decoder includes switches, which are respectively connected to the bit lines and are respectively connected to the source lines. During the write operation, a selected switch of the switches transfers the write voltage to a selected bit line of the bit lines. Each unselected switch of the switches electrically separates the write driver from a corresponding unselected bit line of the bit lines by using the write voltage.

    Nonvolatile memory devices that support enhanced power saving during standby modes

    公开(公告)号:US12237005B2

    公开(公告)日:2025-02-25

    申请号:US18059574

    申请日:2022-11-29

    Abstract: A nonvolatile memory device includes a memory cell array having nonvolatile memory cells therein, which are electrically connected to a plurality of word lines and a plurality of bit lines. A write driver and row decoder are provided, which are electrically connected to the plurality of bit lines and the plurality of word lines, respectively. Control logic is configured to transfer a first voltage to the write driver and a second voltage to the row decoder. The control logic includes: (i) a normal standby mode circuit configured to operate in a normal standby mode, and (ii) a deep standby mode circuit configured to operate in a deep standby mode. To save power, the layout areas of a plurality of elements within the deep standby mode circuit are smaller than layout areas of elements within the normal standby mode circuit, so that current flowing within the deep standby mode circuit during the deep standby mode is less than current flowing within the normal standby mode circuit during the normal standby mode.

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