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    • 5. 发明授权
    • Program method of flash memory device
    • 闪存设备的程序方法
    • US07558115B2
    • 2009-07-07
    • US11479575
    • 2006-06-30
    • Seok Jin Joo
    • Seok Jin Joo
    • G11C11/34
    • G11C11/5628G11C16/10
    • A method for programming a non-volatile memory device includes applying a first dummy voltage to a Multi-Level Cell (MLC). A first program voltage is applied to the MLC to program the MLC, the first program voltage being applied to the MLC after the first dummy voltage has been applied to the MLC. The MLC is verified whether or not the MLC has been programmed correctly by the first program voltage. A second dummy voltage is applied to the MLC after the first dummy voltage has been applied, the second dummy voltage being N volt higher than the first dummy voltage, wherein the second dummy voltage applied to the MLC is of sufficiently low voltage, so that the second dummy voltage does not change an initial state of the MLC. A third dummy voltage is applied to the MLC after the second dummy voltage has been applied, the third dummy voltage being N volt higher than the second dummy voltage.
    • 用于对非易失性存储器件进行编程的方法包括将第一虚拟电压施加到多电平单元(MLC)。 向MLC施加第一编程电压以对MLC进行编程,在将第一虚拟电压施加到MLC之后,将第一编程电压施加到MLC。 验证MLC是否已被第一编程电压正确编程。 在施加第一虚拟电压之后,向MLC施加第二虚拟电压,第二虚拟电压比第一虚拟电压高N伏,其中施加到MLC的第二虚拟电压具有足够低的电压,使得 第二虚拟电压不改变MLC的初始状态。 在施加第二虚拟电压之后,向MLC施加第三虚拟电压,第三虚拟电压比第二虚拟电压高N伏。
    • 9. 发明授权
    • Nonvolatile memory device having a copy back operation and method of operating the same
    • 具有复印操作的非易失性存储器件及其操作方法
    • US08595593B2
    • 2013-11-26
    • US12606713
    • 2009-10-27
    • Seok Jin Joo
    • Seok Jin Joo
    • G06F11/00
    • G06F11/1048G06F12/0246G06F2212/7209
    • A method of operating a nonvolatile memory device comprises performing a read operation to read data stored in a first memory cell block including first unit groups; detecting a second unit group from among the first unit groups, the second unit group having a number of error bits included in the read data, which is greater than a set number of bits and equal to or smaller than a maximum allowable number of bits which can be corrected through an error checking and correction (ECC) processing; and after the second unit group is detected, performing a copyback operation for moving the data, that are stored in the first memory cell block, to a second memory cell block.
    • 一种操作非易失性存储器件的方法包括执行读取操作以读取存储在包括第一单元组的第一存储单元块中的数据; 从所述第一单位组中检测出第二单位组,所述第二单位组具有包括在所述读取数据中的错误位数,所述第二单位组大于设定的位数,并且等于或小于最大可允许的位数 可以通过错误检查和校正(ECC)处理来校正; 并且在检测到第二单元组之后,执行用于将存储在第一存储单元块中的数据移动到第二存储器单元块的回拷动作。