Method of refreshing a memory device, refresh address generator and memory device
    12.
    发明授权
    Method of refreshing a memory device, refresh address generator and memory device 有权
    刷新存储器件,刷新地址发生器和存储器件的方法

    公开(公告)号:US08873324B2

    公开(公告)日:2014-10-28

    申请号:US13240049

    申请日:2011-09-22

    IPC分类号: G11C7/00

    摘要: A refresh address is generated with a refresh period for refreshing a memory device with refresh leveraging. A respective refresh is performed on a weak cell having a first address when the refresh address is a second address instead of on a first strong cell having the second address. A respective refresh is performed on one of the first strong cell or a second strong cell having a third address when the refresh address is the third address. Address information is stored for only one of the first, second, and third addresses such that memory capacity may be reduced. In alternative aspects, a respective refresh is performed on one of a weak cell, a first strong cell, or a second strong cell depending on a flag when the refresh address is any of at least one predetermined address to result in refresh leveraging.

    摘要翻译: 生成具有刷新周期的刷新地址,以刷新刷新的存储器件。 当刷新地址是第二地址而不是具有第二地址的第一强单元时,对具有第一地址的弱小区执行相应的刷新。 当刷新地址是第三地址时,在具有第三地址的第一强单元或第二强单元之一上执行相应的刷新。 仅对第一,第二和第三地址中的一个存储地址信息,从而可以减少存储容量。 在替代方面,当刷新地址是至少一个预定地址中的任一个以导致刷新利用时,依赖于标志,在弱小区,第一强小区或第二强小区中的一个上执行相应的刷新。

    Method of Refreshing a Memory Device, Refresh Address Generator and Memory Device
    13.
    发明申请
    Method of Refreshing a Memory Device, Refresh Address Generator and Memory Device 有权
    刷新存储器件,刷新地址生成器和存储器件的方法

    公开(公告)号:US20120300568A1

    公开(公告)日:2012-11-29

    申请号:US13240049

    申请日:2011-09-22

    IPC分类号: G11C11/402

    摘要: A refresh address is generated with a refresh period for refreshing a memory device with refresh leveraging. A respective refresh is performed on a weak cell having a first address when the refresh address is a second address instead of on a first strong cell having the second address. A respective refresh is performed on one of the first strong cell or a second strong cell having a third address when the refresh address is the third address. Address information is stored for only one of the first, second, and third addresses such that memory capacity may be reduced. In alternative aspects, a respective refresh is performed on one of a weak cell, a first strong cell, or a second strong cell depending on a flag when the refresh address is any of at least one predetermined address to result in refresh leveraging.

    摘要翻译: 生成具有刷新周期的刷新地址,以刷新刷新的存储器件。 当刷新地址是第二地址而不是具有第二地址的第一强单元时,对具有第一地址的弱小区执行相应的刷新。 当刷新地址是第三地址时,在具有第三地址的第一强单元或第二强单元之一上执行相应的刷新。 仅对第一,第二和第三地址中的一个存储地址信息,从而可以减少存储容量。 在替代方面,当刷新地址是至少一个预定地址中的任一个以导致刷新利用时,依赖于标志,在弱小区,第一强小区或第二强小区中的一个上执行相应的刷新。

    Full-stress testable memory device having an open bit line architecture and method of testing the same
    20.
    发明授权
    Full-stress testable memory device having an open bit line architecture and method of testing the same 有权
    具有开放位线架构的全压力可测试存储器件及其测试方法

    公开(公告)号:US07382668B2

    公开(公告)日:2008-06-03

    申请号:US11319247

    申请日:2005-12-27

    IPC分类号: G11C7/00

    摘要: A full-stress testable memory device having an open bit line architecture and a method of testing the memory device. The memory device of the invention includes dummy bit lines, and a voltage controller connected to the dummy bit lines. The voltage controller alternately provides a first variable control voltage and a second variable control voltage to the dummy bit lines during a test mode. In accordance with a method of testing the memory device, a fixed voltage is provided to the dummy bit lines of the edge sub-arrays during a normal operation mode. However, during a test mode, the fixed voltage being applied to the dummy bit line is replaced with a supply voltage and/or a ground voltage, so that all of the sub-arrays can be equally tested.

    摘要翻译: 具有开放位线架构的全压力可测试存储器件和测试存储器件的方法。 本发明的存储器件包括虚拟位线和连接到虚拟位线的电压控制器。 电压控制器在测试模式期间交替地向虚拟位线提供第一可变控制电压和第二可变控制电压。 根据测试存储器件的方法,在正常操作模式期间,将固定电压提供给边缘子阵列的虚拟位线。 然而,在测试模式期间,施加到虚拟位线的固定电压被替换为电源电压和/或接地电压,使得可以对所有子阵列进行同样的测试。