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    • 1. 发明申请
    • REWRITABLE MEMORY DEVICE WITH MULTI-LEVEL, WRITE-ONCE MEMORY CELLS
    • 具有多级一体化存储器单元的可恢复存储器件
    • WO2011078917A1
    • 2011-06-30
    • PCT/US2010/055547
    • 2010-11-05
    • SANDISK CORPORATIONSCHEUERLEIN, Roy, E.FASOLI, Luca
    • SCHEUERLEIN, Roy, E.FASOLI, Luca
    • G11C11/56G11C16/34G11C17/16
    • G11C11/5692G11C16/349G11C17/16G11C2211/5641G11C2211/5646
    • The embodiments described herein are directed to a memory device with multi level, write-once memory cells. In one embodiment, a memory device has a memory array comprising a plurality of multi-level write-once memory cells, wherein each memory cell is programmable to one of a plurality of resistivity levels. The memory device also contains circuitry configured to select a group of memory cells from the memory array, and read a set of flag bits associated with the group of memory cells. The set of flag bits indicate a number of times the group of memory cells has been written to. The circuitry is also configured to select a threshold read level appropriate for the number of times the group of memory cells has been written to, and for each memory cell in the group, read the memory cell as an unprogrammed single-bit memory cell or as a programmed single-bit memory cell based on the selected threshold read level.
    • 这里描述的实施例涉及具有多级,一次写入存储器单元的存储器件。 在一个实施例中,存储器装置具有包括多个多级一次写入存储器单元的存储器阵列,其中每个存储器单元可编程为多个电阻率水平中的一个。 存储器件还包含被配置为从存储器阵列中选择一组存储器单元的电路,并且读取与该组存储器单元相关联的一组标志位。 该组标志位指示存储器单元组被写入的次数。 电路还被配置为选择适合于已经写入存储器单元组的次数的阈值读取电平,并且对于组中的每个存储器单元,读取作为未编程的单位存储器单元的存储器单元或者作为 基于所选择的阈值读取电平的编程的单位存储器单元。
    • 6. 发明申请
    • 3D MEMORY DEVICE WITH PAGE REGISTER NOT LIKE SENSE AMPLIFIER CIRCUITS AND SENSE AMPLIFIER INTERFACE UNDERNEATH MEMORY ARRAY
    • 具有页面寄存器的3D存储器件不像感测放大器电路和感测放大器接口下的存储器阵列
    • WO2011075452A1
    • 2011-06-23
    • PCT/US2010/060153
    • 2010-12-13
    • SANDISK 3D LLCBALAKRISHNAN, GopinathLEE, Jeffrey, Koon YeeZHANG, YuhengLIU, Tz-yiFASOLI, Luca
    • BALAKRISHNAN, GopinathLEE, Jeffrey, Koon YeeZHANG, YuhengLIU, Tz-yiFASOLI, Luca
    • G11C5/02G11C17/16G11C13/02G11C13/00
    • G11C5/025B82Y10/00G11C5/02G11C13/0002G11C13/0007G11C13/025G11C17/16G11C2213/19G11C2213/32G11C2213/33G11C2213/34G11C2213/71
    • A non-volatile storage device includes a substrate, a monolithic three- dimensional memory array of non-volatile storage elements arranged above a portion of the substrate, a plurality of sense amplifiers in communication with the non-volatile storage elements, a plurality of temporary storage devices in communication with the sense amplifiers, a page register in communication with the temporary storage devices, and one or more control circuits. The one or more control circuits are in communication with the page register, the temporary storage devices and the sense amplifiers. The sense amplifiers are arranged on the substrate underneath the monolithic three-dimensional memory array. The temporary storage devices are arranged on the substrate underneath the monolithic three-dimensional memory array. The page register is arranged on the substrate in an area that is not underneath the monolithic three- dimensional memory array. Data read from the non-volatile storage elements by the sense amplifiers is transferred to the temporary storage devices and then to the page register in response to the one or more control circuits. Data to be programmed into the non-volatile storage elements is transferred to the temporary storage devices from the page register in response to the one or more control circuits.
    • 非易失性存储装置包括衬底,布置在衬底的一部分上方的非易失性存储元件的单片三维存储器阵列,与非易失性存储元件通信的多个读出放大器,多个临时 与读出放大器通信的存储装置,与临时存储装置通信的页寄存器,以及一个或多个控制电路。 一个或多个控制电路与页寄存器,临时存储设备和读出放大器通信。 读出放大器布置在单片三维存储器阵列下方的衬底上。 临时存储装置布置在单片三维存储器阵列下面的衬底上。 页面寄存器布置在基板上的不在单片三维存储器阵列下方的区域中。 由感测放大器从非易失性存储元件读取的数据响应于一个或多个控制电路传送到临时存储设备,然后传送到页寄存器。 要编程到非易失性存储元件中的数据响应于一个或多个控制电路从页寄存器传送到临时存储设备。
    • 7. 发明申请
    • CONTINUOUS PROGRAMMING OF RESISTIVE MEMORY USING STAGGERED PRECHARGE
    • 使用STAGGERED PRECHARGE连续编程电阻记忆
    • WO2010042354A1
    • 2010-04-15
    • PCT/US2009/058890
    • 2009-09-29
    • SANDISK 3D LLCFASOLI, LucaYAN, Tianhong
    • FASOLI, LucaYAN, Tianhong
    • G11C7/12G11C13/00
    • G11C7/1078G11C7/12G11C13/0007G11C13/0026G11C13/0064G11C13/0069G11C2013/009G11C2213/32G11C2213/34G11C2213/71G11C2213/72
    • A non-volatile storage system connects a signal driver to a first control line that is connected to a first non-volatile storage element, charges the first control line using the signal driver while the signal driver is connected to the first control line, disconnects the signal driver from the first control line while the first control line remains charged from the signal driver, connects the signal driver to a second control line that is connected to a second non-volatile storage element, charges the second control line using the signal driver while the signal driver is connected to the second control line, and disconnects the signal driver from the second control line. Charging the control lines causes the respective non-volatile storage elements to experience a program operation. The disconnecting of the signal driver from the first control line, the connecting the signal driver to the second control line and the charging of the second control line are performed without waiting for the first non- volatile storage element's program operation to complete.
    • 非易失性存储系统将信号驱动器连接到连接到第一非易失性存储元件的第一控制线,当信号驱动器连接到第一控制线时,使用信号驱动器对第一控制线充电,断开 信号驱动器,而第一控制线保持从信号驱动器充电,将信号驱动器连接到连接到第二非易失性存储元件的第二控制线,使用信号驱动器对第二控制线进行充电,同时 信号驱动器连接到第二控制线,并且将信号驱动器与第二控制线断开。 对控制线进行充电导致相应的非易失性存储元件经历程序操作。 在不等待第一非易失性存储元件的程序操作完成的情况下,执行信号驱动器与第一控制线的断开,将信号驱动器连接到第二控制线和第二控制线的充电。
    • 8. 发明申请
    • PAGE BUFFER PROGRAM COMMAND AND METHODS TO REPROGRAM PAGES WITHOUT RE-INPUTTING DATA TO A MEMORY DEVICE
    • 页面缓存程序命令和方法来重现数据到存储器件
    • WO2010047911A1
    • 2010-04-29
    • PCT/US2009/057992
    • 2009-09-23
    • SANDISK 3D LLCFASOLI, LucaZHANG, YuhengBALAKRISHNAN, Gopinath
    • FASOLI, LucaZHANG, YuhengBALAKRISHNAN, Gopinath
    • G11C16/10
    • G11C16/102G06F12/0246
    • A technique for efficiently handling write operation failures in a memory device which communicates with an external host device allows a page of data to be re-written to a memory array from a page buffer. The host provides user data, a first write address and a write command to the memory device. If the write attempt fails, the host provides a re-write command with a new address, without re-sending the user data to the memory device. Additional data can be received at a data cache of the memory device while a re-write from the page buffer is in progress. The re-written data may be obtained in a copy operation in which the data is read out to the host, modified and written back to the memory device. Additional data can be input to the memory device during the copy operation. Page buffer data can also be modified in place.
    • 一种用于在与外部主机设备通信的存储设备中有效地处理写入操作故障的技术允许从页面缓冲器将数据页面重写到存储器阵列。 主机向存储设备提供用户数据,第一写地址和写命令。 如果写入尝试失败,则主机提供具有新地址的重写命令,而不会将用户数据重新发送到存储设备。 在来自页面缓冲器的重新写入正在进行时,可以在存储器件的数据高速缓存处接收附加数据。 重新写入的数据可以在数据被读出到主机的复制操作中获得,被修改并写回存储器件。 在复制操作期间可以向存储器件输入附加数据。 页面缓冲区数据也可以进行修改。