Method for resetting a resistive change memory element
    1.
    发明授权
    Method for resetting a resistive change memory element 有权
    用于复位电阻变化存储元件的方法

    公开(公告)号:US08000127B2

    公开(公告)日:2011-08-16

    申请号:US12618448

    申请日:2009-11-13

    IPC分类号: G11C11/00 G11C17/00

    摘要: A method of resetting a resistive change memory element is disclosed. The method comprises performing a series of programming operations—for example, a programming pulse of a predetermined voltage level and pulse width—on a resistive change memory element in order to incrementally increase the resistance of the memory element above some predefined threshold. Prior to each programming operation, the resistive state of the memory element is measured and used to determine the parameters used in that programming operation. If this measured resistance value is above a first threshold value, the memory element is determined to already be in a reset state and no further programming operation is performed. If this measured resistance value is below a second threshold value, this second threshold value being less than the first threshold value, a first set of programming parameters are used within the programming operation. If this initial value is above the second threshold value but below the first threshold value, a second set of programming parameters are used within the programming operation.

    摘要翻译: 公开了一种复位电阻变化存储元件的方法。 该方法包括执行一系列编程操作 - 例如,电阻变化存储器元件上的预定电压电平和脉冲宽度的编程脉冲,以便将存储器元件的电阻递增地增加到高于某个预定阈值。 在每个编程操作之前,测量存储元件的电阻状态并用于确定在该编程操作中使用的参数。 如果该测量的电阻值高于第一阈值,则确定存储元件已经处于复位状态,并且不执行进一步的编程操作。 如果该测量的电阻值低于第二阈值,该第二阈值小于第一阈值,则在编程操作中使用第一组编程参数。 如果该初始值高于第二阈值但低于第一阈值,则在编程操作中使用第二组编程参数。