Staggered programming for resistive memories
    1.
    发明授权
    Staggered programming for resistive memories 有权
    电阻存储器的交错编程

    公开(公告)号:US08639903B2

    公开(公告)日:2014-01-28

    申请号:US12779728

    申请日:2010-05-13

    IPC分类号: G06F12/00

    摘要: A memory device and method of programming the same comprising partitioning memory into two or more chunks of information. At least a first portion of a first of the information chunks can be programmed while concurrently determining whether a first portion of a second of the information chunks should be set or reset. Further, the first portion of the second information chunk can be sequential programmed following the programming of the first portion of the first information chunk. The memory device can include different types of memory, such as PCM memory.

    摘要翻译: 一种对其进行编程的存储器件和方法,包括将存储器分成两个或更多个信息块。 信息块中的第一个信息块的至少第一部分可以被编程,同时确定信息块中的第二个信息块的第一部分是否应被设置或重置。 此外,第二信息块的第一部分可以在编程第一信息块的第一部分之后被顺序编程。 存储器件可以包括不同类型的存储器,例如PCM存储器。

    Detection and correction of defects in semiconductor memories
    3.
    发明授权
    Detection and correction of defects in semiconductor memories 有权
    检测和校正半导体存储器中的缺陷

    公开(公告)号:US07639535B2

    公开(公告)日:2009-12-29

    申请号:US11601124

    申请日:2006-11-17

    IPC分类号: G11C11/34

    摘要: A non-volatile memory may have memory portions, such as blocks or other granularities of units of memory, which may fail in actual use. These defective portions can be replaced with other portions which may, in some cases, be of corresponding size. In some embodiments, defects may be detected using a current sensor which detects the current drawn in actual operation. If an excessive current is drawn, this may be detected, the defective unit deactivated, and a replacement provided in its stead. This may result in the repair of a defect with little inconvenience to the user in some embodiments.

    摘要翻译: 非易失性存储器可以具有诸如块或存储器单位的其他粒度的存储器部分,其可能在实际使用中失败。 这些缺陷部分可以用其他部分替代,在某些情况下,这些部分可能具有相应的尺寸。 在一些实施例中,可以使用检测在实际操作中绘制的电流的电流传感器来检测缺陷。 如果画出过大的电流,则可能会检测到这种情况,故障单元会被停用,并且替换为替代。 这在一些实施例中可能导致对用户的少量不便的修复。

    Voltage reference generator using big flash cell
    4.
    发明授权
    Voltage reference generator using big flash cell 有权
    电压基准发生器使用大闪存

    公开(公告)号:US07532515B2

    公开(公告)日:2009-05-12

    申请号:US11803362

    申请日:2007-05-14

    申请人: Gerald Barkley

    发明人: Gerald Barkley

    IPC分类号: G11C11/34

    摘要: A voltage reference generator includes multiple closed loop voltage references. Each of the closed loop voltage references uses a flash cell with a variable threshold voltage and a feedback loop to trim a reference voltage. The voltage reference generator includes sample and hold capacitors in output stages to allow reference voltages to be refreshed during a standby mode of operation.

    摘要翻译: 电压参考发生器包括多个闭环电压基准。 每个闭环电压基准使用具有可变阈值电压的闪存单元和用于修整参考电压的反馈环路。 电压参考发生器包括在输出级中的采样和保持电容器,以允许在待机操作模式期间刷新参考电压。

    CONTROL CIRCUIT FOR REFRESHING VOLTAGES IN A NON-VOLATILE MEMORY DURING A STANDBY MODE AND A METHOD THEREOF
    5.
    发明申请
    CONTROL CIRCUIT FOR REFRESHING VOLTAGES IN A NON-VOLATILE MEMORY DURING A STANDBY MODE AND A METHOD THEREOF 失效
    用于在待机模式下在非易失性存储器中刷新电压的控制电路及其方法

    公开(公告)号:US20090003116A1

    公开(公告)日:2009-01-01

    申请号:US11771582

    申请日:2007-06-29

    IPC分类号: G11C5/14

    CPC分类号: G11C5/14 G11C16/30

    摘要: Disclosed is a method for refreshing voltages in a non volatile memory during a standby mode. The method comprises generating a first node voltage and a second node voltage through a resistance ladder, storing the voltages in a pair of capacitors, comparing the voltages by a comparator, generating an output electrical signal by the comparator upon comparing the voltages, latching the output electrical signal by a flip flop, generating an electrical refresh pulse by a refresh pulse generator upon receiving the output electrical signal from the flip flop, the electrical refresh pulse being supplied to a refresh node of a plurality of refresh nodes in the non volatile memory and generating an electrical sample pulse by a sample pulse generator, the electrical sample pulse along with the electrical refresh pulse setting the flip flop, thereby causing the flip flop to latch a new output electrical signal.

    摘要翻译: 公开了一种在待机模式期间刷新非易失性存储器中的电压的方法。 该方法包括通过电阻梯形生成第一节点电压和第二节点电压,将电压存储在一对电容器中,通过比较器比较电压,在比较电压时产生比较器的输出电信号,锁存输出 通过触发器产生电信号,当从触发器接收到输出电信号时,通过刷新脉冲发生器产生电刷新脉冲,电刷新脉冲被提供给非易失性存储器中的多个刷新节点的刷新节点, 通过采样脉冲发生器产生电采样脉冲,电采样脉冲与电刷新脉冲一起设置触发器,从而使触发器锁存新的输出电信号。

    Erase cycle counting in non-volatile memories
    6.
    发明申请
    Erase cycle counting in non-volatile memories 有权
    擦除非易失性存储器中的周期计数

    公开(公告)号:US20080155181A1

    公开(公告)日:2008-06-26

    申请号:US11644622

    申请日:2006-12-22

    IPC分类号: G06F12/00

    CPC分类号: G11C16/349 G06F12/0246

    摘要: Erase cycle counting may be used for a non-volatile memory to balance the cycles on memory blocks or partitions. In some embodiments, the non-volatile memory may include two memory locations such as wordlines associated with each block of memory. The wordlines may be alternately erased so that an updated cycle count is transferred from the wordlines to the other. In the case of a power loss in the course of the updating of the cycle count, a method may detect that the data is in improper states and require that the erase be restarted after the power loss in order to recover the correct erase cycle count.

    摘要翻译: 擦除周期计数可用于非易失性存储器以平衡存储器块或分区上的周期。 在一些实施例中,非易失性存储器可以包括两个存储器位置,例如与每个存储器块相关联的字线。 可以交替地擦除字线,使得更新的周期计数从字线传输到另一个。 在更新周期计数的过程中发生功率损耗的情况下,方法可以检测到数据处于不正确的状态,并要求在功率损耗之后重新启动擦除,以恢复正确的擦除周期计数。

    Multi-level memory cell sensing
    7.
    发明申请
    Multi-level memory cell sensing 有权
    多级存储单元感应

    公开(公告)号:US20080144369A1

    公开(公告)日:2008-06-19

    申请号:US11639092

    申请日:2006-12-14

    申请人: Gerald Barkley

    发明人: Gerald Barkley

    IPC分类号: G11C16/00 G11C16/06

    摘要: The delay arising from wordline capacitance in multi-level memories may be reduced by adding switched transistors along the wordline path. Also, the wordline may be pre-charged to a high level and then the first wordline voltage level for reading may be a center level. The switched transistors may be p-devices whose n-wells are biased by a stable DC voltage. Nodes along the wordline may float when not accessed. Finally, a distributed voltage generator may be used.

    摘要翻译: 通过沿着字线路径添加开关晶体管,可以减少由多电平存储器中的字线电容产生的延迟。 此外,字线可以被预先充电到高电平,然后用于读取的第一字线电压电平可以是中心电平。 开关晶体管可以是其n阱被稳定的DC电压偏置的p器件。 当不被访问时,字线上的节点可能会浮动。 最后,可以使用分布式电压发生器。

    MEMORY APPARATUS AND SYSTEM WITH SHARED WORDLINE DECODER
    8.
    发明申请
    MEMORY APPARATUS AND SYSTEM WITH SHARED WORDLINE DECODER 有权
    具有共享字词解码器的存储器和系统

    公开(公告)号:US20120263005A1

    公开(公告)日:2012-10-18

    申请号:US13085454

    申请日:2011-04-12

    IPC分类号: G11C8/10

    CPC分类号: G11C8/10 G11C5/025 G11C8/14

    摘要: A memory device includes wordline decoder circuits that share components between adjacent memory blocks. The wordline decoder circuits include multiple levels, where at least one level is split, driving half of the wordlines in one adjacent memory block and driving half of the wordlines in another adjacent memory block. Memory blocks have every other wordline coupled to one adjacent decoder circuit, and the remaining wordlines coupled to another adjacent decoder circuit.

    摘要翻译: 存储器件包括在相邻存储器块之间共享组件的字线解码器电路。 字线解码器电路包括多个电平,其中至少一个电平被分离,驱动一个相邻存储器块中的一半字线并驱动另一相邻存储器块中的一半字线。 存储器块具有耦合到一个相邻解码器电路的每隔一个字线,并且剩余字线耦合到另一相邻解码器电路。

    Erase cycle counting in non-volatile memories
    10.
    发明授权
    Erase cycle counting in non-volatile memories 有权
    擦除非易失性存储器中的周期计数

    公开(公告)号:US07518932B2

    公开(公告)日:2009-04-14

    申请号:US11644622

    申请日:2006-12-22

    IPC分类号: G11C11/34

    CPC分类号: G11C16/349 G06F12/0246

    摘要: Erase cycle counting may be used for a non-volatile memory to balance the cycles on memory blocks or partitions. In some embodiments, the non-volatile memory may include two memory locations such as wordlines associated with each block of memory. The wordlines may be alternately erased so that an updated cycle count is transferred from the wordlines to the other. In the case of a power loss in the course of the updating of the cycle count, a method may detect that the data is in improper states and require that the erase be restarted after the power loss in order to recover the correct erase cycle count.

    摘要翻译: 擦除周期计数可用于非易失性存储器以平衡存储器块或分区上的周期。 在一些实施例中,非易失性存储器可以包括两个存储器位置,例如与每个存储器块相关联的字线。 可以交替地擦除字线,使得更新的周期计数从字线传输到另一个。 在更新周期计数的过程中发生功率损耗的情况下,方法可以检测到数据处于不正确的状态,并要求在功率损耗之后重新启动擦除,以恢复正确的擦除周期计数。