Phase change random access memory and method of testing the same
    1.
    发明授权
    Phase change random access memory and method of testing the same 有权
    相变随机存取存储器和测试方法相同

    公开(公告)号:US07573766B2

    公开(公告)日:2009-08-11

    申请号:US11898125

    申请日:2007-09-10

    IPC分类号: G11C29/00

    摘要: Provided is a method of testing a phase change random access memory (PRAM). The method may include providing a plurality of PRAM cells each coupled between each of a plurality of first lines and each of a plurality of second lines intersecting the first lines, selecting at least one of the plurality of first lines while deselecting the remaining first lines and the plurality of second lines, pre-charging the selected at least one of the plurality of first lines to a predetermined or given voltage level, and sensing a change in the voltage level of the selected first line while supplying a monitoring voltage to the selected first line.

    摘要翻译: 提供了一种测试相变随机存取存储器(PRAM)的方法。 该方法可以包括提供多个PRAM单元,每个PRAM单元分别耦合在多个第一线中的每一条与多条第一线相交的多条第二线中的每条之间,同时选择多条第一条线中的至少一条,同时取消选择其余的第一条线, 所述多个第二线路将所选择的所述多个第一线路中的至少一个预充电到预定或给定的电压电平,并且感测所选择的第一线路的电压电平的变化,同时向所选择的第一线路提供监视电压 线。

    Phase change random access memory and method of testing the same
    2.
    发明申请
    Phase change random access memory and method of testing the same 有权
    相变随机存取存储器和测试方法相同

    公开(公告)号:US20080062741A1

    公开(公告)日:2008-03-13

    申请号:US11898125

    申请日:2007-09-10

    IPC分类号: G11C29/44

    摘要: Provided is a method of testing a phase change random access memory (PRAM). The method may include providing a plurality of PRAM cells each coupled between each of a plurality of first lines and each of a plurality of second lines intersecting the first lines, selecting at least one of the plurality of first lines while deselecting the remaining first lines and the plurality of second lines, pre-charging the selected at least one of the plurality of first lines to a predetermined or given voltage level, and sensing a change in the voltage level of the selected first line while supplying a monitoring voltage to the selected first line.

    摘要翻译: 提供了一种测试相变随机存取存储器(PRAM)的方法。 该方法可以包括提供多个PRAM单元,每个PRAM单元分别耦合在多个第一线中的每一条与多条第一线相交的多条第二线中的每条之间,同时选择多条第一条线中的至少一条,同时取消选择其余的第一条线, 所述多个第二线路将所选择的所述多个第一线路中的至少一个预充电到预定或给定的电压电平,并且感测所选择的第一线路的电压电平的变化,同时向所选择的第一线路提供监视电压 线。

    Methods of operating phase-change random access memory devices
    4.
    发明授权
    Methods of operating phase-change random access memory devices 有权
    操作相变随机存取存储器件的方法

    公开(公告)号:US07848165B2

    公开(公告)日:2010-12-07

    申请号:US12350344

    申请日:2009-01-08

    IPC分类号: G11C29/00

    CPC分类号: G11C29/24 G11C13/0004

    摘要: A phase-change random access memory (PRAM) device includes a plurality of banks, a plurality of column redundancy cell arrays, and a plurality of column redundancy write drivers. Each of the plurality of column redundancy cell arrays corresponds to at least one of the banks. Each of the plurality of column redundancy write drivers corresponds to at least one of the column redundancy cell arrays. The column redundancy write drivers are configured to transmit respective redundancy test data to the corresponding ones of the column redundancy cell arrays in response to a test control signal, which may be activated in response to each program pulse for writing data. Related test and access methods are also discussed.

    摘要翻译: 相变随机存取存储器(PRAM)装置包括多个存储体,多个列冗余单元阵列和多个列冗余写入驱动器。 多个列冗余单元阵列中的每一个对应于至少一个存储体。 多个列冗余写入驱动器中的每一个对应于列冗余单元阵列中的至少一个。 列冗余写入驱动器被配置为响应于可以响应于用于写入数据的每个编程脉冲激活的测试控制信号将相应的冗余测试数据发送到列冗余单元阵列中的对应的冗余测试数据。 还讨论了相关的测试和访问方法。

    PHASE-CHANGE RANDOM ACCESS MEMORY DEVICES AND RELATED METHODS OF OPERATION
    5.
    发明申请
    PHASE-CHANGE RANDOM ACCESS MEMORY DEVICES AND RELATED METHODS OF OPERATION 有权
    相变随机访问存储器件及其相关操作方法

    公开(公告)号:US20090175072A1

    公开(公告)日:2009-07-09

    申请号:US12350344

    申请日:2009-01-08

    IPC分类号: G11C11/00 G11C8/00 G11C29/00

    CPC分类号: G11C29/24 G11C13/0004

    摘要: A phase-change random access memory (PRAM) device includes a plurality of banks, a plurality of column redundancy cell arrays, and a plurality of column redundancy write drivers. Each of the plurality of column redundancy cell arrays corresponds to at least one of the banks. Each of the plurality of column redundancy write drivers corresponds to at least one of the column redundancy cell arrays. The column redundancy write drivers are configured to transmit respective redundancy test data to the corresponding ones of the column redundancy cell arrays in response to a test control signal, which may be activated in response to each program pulse for writing data. Related test and access methods are also discussed.

    摘要翻译: 相变随机存取存储器(PRAM)装置包括多个存储体,多个列冗余单元阵列和多个列冗余写入驱动器。 多个列冗余单元阵列中的每一个对应于至少一个存储体。 多个列冗余写入驱动器中的每一个对应于列冗余单元阵列中的至少一个。 列冗余写入驱动器被配置为响应于可以响应于用于写入数据的每个编程脉冲激活的测试控制信号将相应的冗余测试数据发送到列冗余单元阵列中的对应的冗余测试数据。 还讨论了相关的测试和访问方法。