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    • 5. 发明授权
    • Multi-level non-volatile memory device, system and method with state-converted data
    • 多级非易失性存储器件,具有状态转换数据的系统和方法
    • US08644066B2
    • 2014-02-04
    • US12620907
    • 2009-11-18
    • Ki Tae Park
    • Ki Tae Park
    • G11C11/34G11C16/04
    • G06F11/141G11C7/1006G11C11/5628G11C16/0483G11C16/3418G11C29/00G11C2211/5646
    • Methods of programming nonvolatile memory devices include programming a plurality of nonvolatile multi-state memory cells in the non-volatile memory device with state-converted data derived from non-state-converted data. This state-converted data may be associated with a greater number of erased states relative to the non-state-converted data, when programmed into the plurality of nonvolatile memory cells. The methods also include generating a flag having a value that indicates which ones of the plurality of nonvolatile memory cells have been programmed with data that is swapped with data in other ones of the plurality of nonvolatile memory cells. This flag may also be programmed into the nonvolatile memory device. Operations may also be performed to read the state-converted data (and flag) from the plurality of nonvolatile memory cells and then decode the state-converted data into the non-state-converted data, based on the value of the flag.
    • 非易失性存储器件的编程方法包括使用从非状态转换数据导出的状态转换数据来编程非易失性存储器件中的多个非易失性多态存储器单元。 当被编程到多个非易失性存储器单元中时,该状态转换的数据可以与相对于非状态转换的数据的更多数量的擦除状态相关联。 该方法还包括产生一个标志,该标志具有指示多个非易失性存储单元中的哪一个已被编程的数据与多个非易失性存储器单元中的其他非易失性存储器单元中的数据进行交换。 该标志也可以被编程到非易失性存储器件中。 还可以执行操作以从多个非易失性存储器单元读取状态转换的数据(和标志),然后基于标志的值将状态转换的数据解码为非状态转换的数据。
    • 7. 发明授权
    • Flash memory device and method of programming flash memory device
    • 闪存设备和闪存设备编程方法
    • US08539138B2
    • 2013-09-17
    • US12961791
    • 2010-12-07
    • Min Seok KimKi Tae Park
    • Min Seok KimKi Tae Park
    • G06F12/02
    • G11C16/3454G11C11/5628G11C16/0416G11C16/0483G11C2211/5621
    • A flash memory device performs a program operation using an incremental step pulse programming (ISPP) scheme comprising a plurality of program loops. In each of the program loops, a program pulse operation is performed to increase the threshold voltages of selected memory cells, and a program verify operation is performed to verify a program status of the selected memory cells. The program verify operation can be selectively skipped in some program loops based on a voltage increment of one or more of the program pulse operations, an amount by which threshold voltages of the selected memory cells are to be increased in the ISPP scheme, or a total number of program loops of the ISPP scheme.
    • 闪存器件使用包括多个程序循环的增量步进脉冲编程(ISPP)方案来执行编程操作。 在每个程序循环中,执行编程脉冲操作以增加所选存储单元的阈值电压,并且执行程序验证操作以验证所选存储单元的程序状态。 可以基于一个或多个编程脉冲操作的电压增量在一些程序循环中选择性地跳过程序验证操作,在ISPP方案中所选择的存储器单元的阈值电压将增加的量,或总共 ISPP方案的程序循环数。