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    • 101. 发明授权
    • Method for controlling a non-volatile semiconductor memory device
    • 用于控制非易失性半导体存储器件的方法
    • US07916547B2
    • 2011-03-29
    • US12209486
    • 2008-09-12
    • Koji Hosono
    • Koji Hosono
    • G11C16/06G11C16/04
    • G11C16/0483G11C11/5642G11C16/26G11C16/3418G11C16/3454G11C2211/565
    • A non-volatile semiconductor memory device has a NAND string, in which multiple memory cells are connected in series. A read procedure is performed for a selected memory cell in the NAND string on the condition that the selected memory cell is applied with a selected voltage while unselected memory cells are driven to be turned on without regard to cell data thereof. In the read procedure, a first read pass voltage is applied to unselected memory cells except an adjacent and unselected memory cell disposed adjacent to the selected memory cell, the adjacent and unselected memory cell being completed in data write later than the selected memory cell, and a second read pass voltage higher than the first read pass voltage is applied to the adjacent and unselected memory cell.
    • 非易失性半导体存储器件具有串联多个存储单元的NAND串。 在所选择的存储单元被施加选定电压的同时驱动未选择的存储单元而不考虑其单元数据的情况下,对NAND串中的所选存储单元执行读取过程。 在读取过程中,第一读取通过电压被施加到非选择存储单元,除了邻近所选存储单元设置的相邻和非选择存储单元之外,相邻和未选择的存储单元在比所选择的存储器单元晚的数据写入中完成;以及 将高于第一读通过电压的第二读通过电压施加到相邻和未选择的存储单元。
    • 103. 发明授权
    • Semiconductor memory device and method of erasing data therein
    • 半导体存储器件及其中擦除数据的方法
    • US07894268B2
    • 2011-02-22
    • US12773280
    • 2010-05-04
    • Koji Hosono
    • Koji Hosono
    • G11C16/06
    • G11C16/0483G11C16/08G11C16/16G11C16/3404G11C16/344
    • A semiconductor memory device includes a memory cell array of NAND cell units. The NAND cell unit includes a plurality of electrically erasable programmable nonvolatile memory cells connected serially, and a first and a second selection transistor provided to connect both ends of the memory cells to a bit line and a source line, respectively. The semiconductor memory device also includes dummy cells inserted in the NAND cell unit adjacent to the first and second selection transistors, respectively. The dummy cells in the NAND cell unit are erased simultaneously with the memory cells under a weaker erase potential condition than that for the memory cells and set in a higher threshold distribution than an erased state of the memory cells.
    • 半导体存储器件包括NAND单元单元的存储单元阵列。 NAND单元单元包括串联连接的多个电可擦除可编程非易失性存储单元,以及分别将存储单元的两端连接到位线和源极线的第一和第二选择晶体管。 半导体存储器件还包括分别插入与NAND单元单元相邻的第一和第二选择晶体管的虚拟单元。 与存储单元相比,NAND单元单元中的虚设单元与存储单元同时擦除,而且存储单元的擦除电位低于存储单元,并且设置在比存储单元的擦除状态更高的阈值分布。
    • 104. 发明授权
    • Non-volatile semiconductor memory
    • 非易失性半导体存储器
    • US07859907B2
    • 2010-12-28
    • US12621134
    • 2009-11-18
    • Koji HosonoHiroshi NakamuraKen TakeuchiKenichi Imamiya
    • Koji HosonoHiroshi NakamuraKen TakeuchiKenichi Imamiya
    • G11C11/34G11C16/06
    • G11C16/0483G11C5/145G11C7/1006G11C11/5621G11C11/5628G11C11/5635G11C11/5642G11C16/10G11C16/24G11C16/26G11C16/3445G11C16/3454G11C16/3459G11C2211/5621G11C2211/5641G11C2211/5642G11C2211/5643
    • A non-volatile semiconductor device has a memory cell array having electrically erasable programmable non-volatile memory cells, reprogramming and retrieval circuits that temporarily store data to be programmed in the memory cell array and sense data retrieved from the memory cell array. Each reprogramming and retrieval circuit has first and second latches that are selectively connected to the memory cell array and transfer data. A controller controls the reprogramming and retrieval circuits on a data-reprogramming operation to and a data-retrieval operation from the memory cell array. Each reprogramming and retrieval circuit has a multilevel logical operation mode and a caching operation mode. In the multilevel logical operation mode, re-programming and retrieval of upper and lower bits of two-bit four-level data is performed using the first and the second latches to store the two-bit four-level data in one of the memory cells in a predetermined threshold level range. In the caching operation mode, data transfer between one of the memory cells selected in accordance with a first address and the first latch is performed while data transfer is performed between the second latch and input/output terminals in accordance with a second address with respect to one-bit two-level data to be stored in one of the memory cells.
    • 非易失性半导体器件具有存储单元阵列,其具有电可擦除可编程非易失性存储器单元,重新编程和检索电路,其临时存储要存储在存储单元阵列中的要编程的数据并感测从存储器单元阵列检索的数据。 每个重新编程和检索电路具有选择性地连接到存储单元阵列和传送数据的第一和第二锁存器。 控制器控制数据重新编程操作中的重新编程和检索电路以及来自存储单元阵列的数据检索操作。 每个重新编程和检索电路都具有多级逻辑操作模式和缓存操作模式。 在多级逻辑操作模式中,使用第一和第二锁存器来执行二位四电平数据的高位和低位的重新编程和检索,以将两位四电平数据存储在存储单元之一中 在预定的阈值电平范围内。 在高速缓存操作模式中,根据第一地址选择的存储器单元之一和第一锁存器之间的数据传输是在第二锁存器和输入/输出端子之间根据第二地址相对于 要存储在其中一个存储单元中的一位二电平数据。
    • 107. 发明申请
    • SEMICONDUCTOR MEMORY DEVICE
    • 半导体存储器件
    • US20100214820A1
    • 2010-08-26
    • US12710661
    • 2010-02-23
    • Koji HosonoHiroshi Maejima
    • Koji HosonoHiroshi Maejima
    • G11C11/00G11C5/14
    • G11C8/14G11C13/00G11C13/0004G11C13/0011G11C13/0023G11C13/0028G11C13/0069G11C2013/0076G11C2013/0088G11C2013/009G11C2213/72
    • A semiconductor memory device comprises: a memory cell array having memory cells disposed at a crossing-point of a plurality of first lines and a plurality of second lines and a control circuit configured to apply a first voltage to selected one or more of the first lines, and to apply a second voltage having a value smaller than the first voltage to selected one of the second lines, such that a certain potential difference is applied to selected one or more of the memory cells. The control circuit adjusts the second voltage based on a position of the selected one or more of the memory cells within the memory cell array and a number of the selected one or more of the memory cells on which an operation is simultaneously executed, during application of the potential difference to the selected one or more of the memory cells.
    • 半导体存储器件包括:存储单元阵列,其具有设置在多个第一线的交叉点处的存储单元和多条第二线;以及控制电路,被配置为向所选择的一条或多条第一条线施加第一电压 并且将具有小于第一电压的值的第二电压施加到所选择的第二行中的一个,使得对所选择的一个或多个存储器单元施加一定的电位差。 控制电路根据存储单元阵列内所选择的一个或多个存储器单元的位置以及在其中同时执行操作的所选择的一个或多个存储器单元的数量来调整第二电压, 与所选择的一个或多个存储器单元的电位差。
    • 108. 发明申请
    • SEMICONDUCTOR STORAGE DEVICE
    • 半导体存储设备
    • US20100091551A1
    • 2010-04-15
    • US12556272
    • 2009-09-09
    • Koji HosonoSatoru Takase
    • Koji HosonoSatoru Takase
    • G11C11/00G11C7/06
    • G11C13/0064G11C13/0004G11C13/0011G11C13/0069G11C2013/0078G11C2213/71G11C2213/72
    • A semiconductor storage device includes: a memory cell array having memory cells; and a control circuit configured to apply a first voltage to a selected one of first wirings as well as a second voltage to a selected one of second wirings. The control circuit includes: a signal output circuit configured to output a first signal based on a first current flowing through a selected memory cell and a reference current; and a current retaining circuit configured to retain a second current flowing through the first wirings or a wiring electrically connected to the first wirings during a certain period of time. The signal output circuit is configured to determine the first current based on the second current retained by the current retaining circuit. The control circuit is configured to stop application of the first voltage to the first wirings based on the first signal.
    • 半导体存储装置包括:具有存储单元的存储单元阵列; 以及控制电路,被配置为将第一电压施加到所选择的第一布线中的一个,以及将第二电压施加到所选择的第二布线中的一个。 控制电路包括:信号输出电路,被配置为基于流过所选择的存储单元的第一电流和参考电流来输出第一信号; 以及电流保持电路,其被配置为在一定时间段期间保持流过所述第一布线的第二电流或电连接到所述第一布线的布线。 信号输出电路被配置为基于由电流保持电路保持的第二电流来确定第一电流。 控制电路被配置为基于第一信号停止将第一电压施加到第一布线。
    • 109. 发明授权
    • Non-volatile semiconductor memory
    • 非易失性半导体存储器
    • US07639544B2
    • 2009-12-29
    • US12257828
    • 2008-10-24
    • Koji HosonoHiroshi NakamuraKen TakeuchiKenichi Imamiya
    • Koji HosonoHiroshi NakamuraKen TakeuchiKenichi Imamiya
    • G11C11/34G11C16/06
    • G11C16/0483G11C5/145G11C7/1006G11C11/5621G11C11/5628G11C11/5635G11C11/5642G11C16/10G11C16/24G11C16/26G11C16/3445G11C16/3454G11C16/3459G11C2211/5621G11C2211/5641G11C2211/5642G11C2211/5643
    • A non-volatile semiconductor device has a memory cell array having electrically erasable programmable non-volatile memory cells, reprogramming and retrieval circuits that temporarily store data to be programmed in the memory cell array and sense data retrieved from the memory cell array. Each reprogramming and retrieval circuit has first and second latches that are selectively connected to the memory cell array and transfer data. A controller controls the reprogramming and retrieval circuits on a data-reprogramming operation to and a data-retrieval operation from the memory cell array. Each reprogramming and retrieval circuit has a multilevel logical operation mode and a caching operation mode. In the multilevel logical operation mode, re-programming and retrieval of upper and lower bits of two-bit four-level data is performed using the first and the second latches to store the two-bit four-level data in one of the memory cells in a predetermined threshold level range. In the caching operation mode, data transfer between one of the memory cells selected in accordance with a first address and the first latch is performed while data transfer is performed between the second latch and input/output terminals in accordance with a second address with respect to one-bit two-level data to be stored in one of the memory cells.
    • 非易失性半导体器件具有存储单元阵列,其具有电可擦除可编程非易失性存储器单元,重新编程和检索电路,其临时存储要存储在存储单元阵列中的要编程的数据并感测从存储器单元阵列检索的数据。 每个重新编程和检索电路具有选择性地连接到存储单元阵列和传送数据的第一和第二锁存器。 控制器控制数据重新编程操作中的重新编程和检索电路以及来自存储单元阵列的数据检索操作。 每个重新编程和检索电路都具有多级逻辑操作模式和缓存操作模式。 在多级逻辑操作模式中,使用第一和第二锁存器来执行二位四电平数据的高位和低位的重新编程和检索,以将两位四电平数据存储在存储单元之一中 在预定的阈值电平范围内。 在高速缓存操作模式中,根据第一地址选择的存储器单元之一和第一锁存器之间的数据传输是在第二锁存器和输入/输出端子之间根据第二地址相对于 要存储在其中一个存储单元中的一位二电平数据。