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    • 8. 发明授权
    • Nonvolatile semiconductor memory device having redundant data lines and
page mode programming
    • 具有冗余数据线和页面模式编程的非易失性半导体存储器件
    • US5134583A
    • 1992-07-28
    • US440323
    • 1989-11-22
    • Akinori MatsuoMasashi WatanabeMasashi WadaTakeshi WadaYasuhiro Nakamura
    • Akinori MatsuoMasashi WatanabeMasashi WadaTakeshi WadaYasuhiro Nakamura
    • G11C16/02G11C16/06G11C17/00G11C29/00G11C29/04H01L21/8247H01L27/115H01L29/788H01L29/792
    • G11C29/78
    • A semiconductor memory device has a plurality of memory blocks, each block including a matrix arrangement of a plurality of nonvolatile memory elements. The device is also provided with at least one redundant data line which is selectively employed in place of a defective data line associated with a defective address in a memory block. The data lines corresponding to the respective memory blocks are selectively coupled to corresponding ones of first common data lines by a Y selector circuit in accordance with outputs of a first Y decoder, while a redundant data line is controllably coupled to a redundant common data line by a redundant selector circuit in accordance with an output of a redundant decoder. A plurality of data latch circuits are provided for transmitting therethrough write information data in accordance with outputs of a second Y decoder and a second redundant decoder, each one of the plurality of data latch circuits being paired with a respective one of a plurality of write amplifiers which transmit the write signals to the common data lines and redundant common data line. Therefore, of the plurality of data lines being addressed in the plurality of memory blocks, only a defective data line which corresponds to a defective address is replaced with a respective redundant data line.
    • 半导体存储器件具有多个存储块,每个块包括多个非易失性存储元件的矩阵排列。 该设备还设置有至少一个冗余数据线,其被选择性地用于代替与存储器块中的缺陷地址相关联的有缺陷的数据线。 对应于相应存储块的数据线根据第一Y解码器的输出由Y选择器电路选择性地耦合到相应的第一公用数据线,而冗余数据线可控地耦合到冗余公用数据线, 根据冗余解码器的输出的冗余选择器电路。 提供了多个数据锁存电路,用于根据第二Y解码器和第二冗余解码器的输出来传输写入信息数据,多个数据锁存电路中的每一个与多个写入放大器中的相应一个配对 其将写信号发送到公共数据线和冗余公用数据线。 因此,在多个存储块中寻址的多条数据线中,只有与缺陷地址对应的缺陷数据线被相应的冗余数据线替代。