MEMORY CELL WITH IMPROVED WRITE MARGIN
    14.
    发明申请

    公开(公告)号:US20170229166A1

    公开(公告)日:2017-08-10

    申请号:US15496655

    申请日:2017-04-25

    Abstract: Described is an apparatus and system for improving write margin in memory cells. In one embodiment, the apparatus comprises: a first circuit to provide a pulse signal with a width; and a second circuit to receive the pulse signal and to generate a power supply for the memory cell, wherein the second circuit to reduce a level of the power supply below a data retention voltage level of the memory cell for a time period corresponding to the width of the pulse signal. In one embodiment, the apparatus comprises a column of memory cells having a high supply node and a low supply node; and a charge sharing circuit positioned in the column of memory cells, the charge sharing circuit coupled to the high and low supply nodes, the charge sharing circuit operable to reduce direct-current (DC) power consumption.

    APPARATUS FOR LOW POWER WRITE AND READ OPERATIONS FOR RESISTIVE MEMORY
    16.
    发明申请
    APPARATUS FOR LOW POWER WRITE AND READ OPERATIONS FOR RESISTIVE MEMORY 审中-公开
    低电力写入和电容式存储器读操作的装置

    公开(公告)号:US20160125927A1

    公开(公告)日:2016-05-05

    申请号:US14129277

    申请日:2013-06-28

    Abstract: Described are apparatuses for improving resistive memory energy efficiency. An apparatus performs data-driven write to make use of asymmetric write switch energy between write0 and write1 operations. The apparatus comprises: a resistive memory cell coupled to a bit line and a select line; a first pass-gate coupled to the bit line; a second pass-gate coupled to the select line; and a multiplexer operable by input data, the multiplexer to provide a control signal to the first and second pass-gates or to write drivers according to logic level of the input data. An apparatus comprises circuit for performing read before write operation which avoids unnecessary writes with an initial low power read operation. An apparatus comprises circuit to perform self-controlled write operation which stops the write operation as soon as bit-cell flips. An apparatus comprises circuit for performing self-controlled read operation which stops read operation as soon as data is detected.

    Abstract translation: 描述了用于提高电阻式存储器能量效率的装置。 一种装置执行数据驱动写入,以利用write0和write1操作之间的非对称写入开关能量。 该装置包括:耦合到位线和选择线的电阻存储器单元; 耦合到位线的第一通过栅极; 耦合到所述选择线的第二通过栅极; 以及可由输入数据操作的多路复用器,用于根据输入数据的逻辑电平向第一和第二传递门提供控制信号或写入驱动器。 一种装置包括用于在写入操作之前执行读取的电路,其避免了利用初始低功率读取操作的不必要的写入。 一种装置包括执行自动写入操作的电路,其一旦位单元翻转就停止写入操作。 一种装置包括用于执行自动读取操作的电路,其在检测到数据时停止读取操作。

    LOGIC CHIP INCLUDING EMBEDDED MAGNETIC TUNNEL JUNCTIONS

    公开(公告)号:US20200227472A1

    公开(公告)日:2020-07-16

    申请号:US16831658

    申请日:2020-03-26

    Abstract: An embodiment integrates memory, such as spin-torque transfer magnetoresistive random access memory (STT-M RAM) within a logic chip. The STT-MRAM includes a magnetic tunnel junction (MTJ) that has an upper MTJ layer, a lower MTJ layer, and a tunnel barrier directly contacting the upper MTJ layer and the lower MTJ layer; wherein the upper MTJ layer includes an upper MTJ layer sidewall and the lower MTJ layer includes a lower MTJ sidewall horizontally offset from the upper MTJ layer. Another embodiment includes a memory area, comprising a MTJ, and a logic area located on a substrate; wherein a horizontal plane intersects the MTJ, a first Inter-Layer Dielectric (ILD) material adjacent the MTJ, and a second ILD material included in the logic area, the first and second ILD materials being unequal to one another. Other embodiments are described herein.

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