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    • 1. 发明申请
    • PHASE CHANGE MEMORY DEVICE
    • 相变存储器件
    • WO2004090984A1
    • 2004-10-21
    • PCT/JP2003/004275
    • 2003-04-03
    • KABUSHIKI KAISHA TOSHIBATODA, Haruki
    • TODA, Haruki
    • H01L27/10
    • G11C13/0004G11C5/02G11C7/18G11C13/0007G11C2211/4013G11C2213/31G11C2213/71G11C2213/72H01L27/2409H01L27/2481H01L45/06H01L45/1233
    • A phase change memory device has a semiconductor substrate; a plurality of cell arrays stacked above the semiconductor substrate, each cell array having memory cells arranged in a matrix manner for storing resistance values as data that are determined by phase change of the memory cells, bit lines each commonly connecting one ends of plural memory cells arranged along a first direction of the matrix and word lines each commonly connecting the other ends of plural memory cells arranged along a second direction of the matrix; a read/write circuit formed on the semiconductor substrate as underlying the cell arrays for reading and writing data of the cell arrays; first and second vertical wirings disposed outside of first and second boundaries that define a cell layout region of the cell arrays in the first direction to connect the bit lines of the respective cell arrays to the read/write circuit; and third vertical wirings disposed outside of one of third and fourth boundaries that define the cell layout region in the second direction to connect the word lines of the respective cell arrays to the read/write circuit.
    • 相变存储器件具有半导体衬底; 多个单元阵列,堆叠在半导体衬底之上,每个单元阵列具有以矩阵方式布置的存储单元,用于存储电阻值,作为通过存储器单元的相变确定的数据,各通常连接多个存储单元的一端的位线 沿着矩阵的第一方向布置,每个字线通常连接沿矩阵的第二方向布置的多个存储单元的另一端; 在半导体衬底上形成的用于读取和写入单元阵列数据的单元阵列的读/写电路; 布置在第一和第二边界之外的第一和第二垂直布线,其限定第一方向上的单元阵列的单元布局区域,以将各单元阵列的位线连接到读/写电路; 以及第三垂直布线,其布置在第三和第四边界之一之外,其限定第二方向上的单元布局区域,以将各单元阵列的字线连接到读/写电路。
    • 3. 发明申请
    • SEMICONDUCTOR MEMORY WITH REED- SOLOMON DECODER
    • 半导体存储器与REED- SOLOMON解码器
    • WO2008099723B1
    • 2008-10-23
    • PCT/JP2008051903
    • 2008-01-30
    • TOSHIBA KKTODA HARUKI
    • TODA HARUKI
    • H03M13/15G06F11/10
    • H03M13/1575G06F11/1068H03M13/1515
    • A semiconductor memory device such as a flash memory with a memory cell array and a double-error correcting Reed-Solomon decoder, comprising: means for transforming the error location polynomial through variable transformation in order to obtain a unique coefficient depending on the syndromes; a lookup table for determining the error locations from the unique coefficient; and means for determining said unique coefficient from the syndromes through computation in a Residue Number System in order to achieve parallel processing and to reduce the quantity of computations, for example using residues through 15 and 17 when processing in GF (256)
    • 一种半导体存储器件,例如具有存储单元阵列的闪存和双纠错里德 - 索罗姆解码器的半导体存储器件,包括:用于通过可变变换变换误差位置多项式的装置,以便根据校正子获得独特的系数; 用于从所述唯一系数确定所述错误位置的查找表; 以及用于通过残差编号系统中的计算来确定来自综合征的所述唯一系数的装置,以便实现并行处理并减少计算量,例如当在GF(256)中处理时使用通过15和17的残差,
    • 5. 发明申请
    • SEMICONDUCTOR MEMORY DEVICE
    • 半导体存储器件
    • WO2012160863A1
    • 2012-11-29
    • PCT/JP2012/056788
    • 2012-03-09
    • KABUSHIKI KAISHA TOSHIBADEGUCHI, JunTODA, Haruki
    • DEGUCHI, JunTODA, Haruki
    • G11C13/00
    • G11C13/0069G11C13/0002G11C13/0007G11C2013/0073G11C2013/0085G11C2013/0088G11C2013/009G11C2213/71G11C2213/77
    • A semiconductor memory device comprises a memory cell array including plural memory cells provided at the intersections of plural first lines and plural second lines; and a write circuit. The write circuit, on execution of a write operation, executes a first step of applying a voltage across the first and second lines connected to a data-write-targeted, selected memory cell, and a different voltage across the first and second lines connected to a data-write-untargeted, unselected memory cell of the plural memory cells and, after execution of the first step, executes a second step of applying a voltage, required for data write, across the first and second lines connected to the selected memory cell, and bringing at least one of the first and second lines connected to the unselected memory cell into the floating state.
    • 半导体存储器件包括存储单元阵列,该存储单元阵列包括设置在多个第一线和多条第二线的交点处的多个存储单元; 和写电路。 写入电路在执行写入操作时执行第一步骤,跨连接到数据写入目标的选择的存储器单元的第一和第二线路施加电压,并跨越连接到第一和第二线路的不同电压 所述多个存储单元的数据写未指定的未选择的存储单元,并且在执行所述第一步骤之后,执行第二步骤,在连接到所选存储单元的第一和第二行上施加数据写入所需的电压 并且将连接到未选择的存储单元的第一和第二线中的至少一个引入浮动状态。