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    • 87. 发明授权
    • Semiconductor memory device having write column select gate
    • 具有写入列选择栅极的半导体存储器件
    • US06674685B2
    • 2004-01-06
    • US10222840
    • 2002-08-19
    • Takeshi Fujino
    • Takeshi Fujino
    • G11C800
    • G11C11/4076G11C7/12G11C7/22G11C11/4097G11C2207/002G11C2207/229
    • A DRAM includes a sense amplifier which is activated when first and second nodes are set respectively to L and H levels to amplify a potential difference between paired bit lines. The DRAM further includes a write column select gate which is activated when the first node is set to L level to write a data signal on a pair of write data lines into a corresponding sense amplifier when a corresponding write column select line is set to H level. In this way, the data signal can be written into the sense amplifier simultaneously with sensing and amplification of memory cell data, which can enhance the random access rate.
    • DRAM包括读取放大器,当第一和第二节点分别被设置为L和H电平时,该放大器被激活,以放大成对位线之间的电位差。 DRAM还包括写入列选择栅极,当第一个节点被设置为L电平时,当对应的写入列选择线被设置为H电平时,将写入数据线上的数据信号写入相应的读取放大器 。 以这种方式,数据信号可以与存储单元数据的感测和放大同时写入读出放大器,这可以增强随机存取速率。
    • 90. 发明授权
    • Semiconductor memory device including a plurality of memory blocks arranged in rows and columns
    • 半导体存储器件包括以行和列排列的多个存储块
    • US06404695B1
    • 2002-06-11
    • US09877026
    • 2001-06-11
    • Takeshi FujinoAkira Yamazaki
    • Takeshi FujinoAkira Yamazaki
    • G11C800
    • G11C11/4087
    • A DRAM includes two main column selecting lines provided at each sense amplifier zone, eight sub column selecting lines provided at each sense amplifier zone to correspond to each memory block, two sub decoder column selecting lines provided at each sub decoder zone, a sub column decoder provided at each crossing portion of the sense amplifier zone and the sub decoder zone to select one sub column selecting line from corresponding eight sub column selecting lines in accordance with a signal from the two main column selecting lines and the two sub decoder column selecting lines. The area of the sense amplifier zone can be reduced compared to that of a conventional DRAM in which all signal lines for column selection were provided at a sense amplifier zone.
    • DRAM包括在每个读出放大器区域提供的两个主列选择线,在每个读出放大器区域处提供的八个子列选择线,以对应于每个存储块,在每个子解码器区提供的两个子解码器列选择线,子列解码器 设置在感测放大器区域和子解码器区域的每个交叉部分处,以根据来自两个主列选择线和两个子解码器列选择线的信号从相应的八个子列选择线中选择一个子列选择线。 与传统DRAM相比,读出放大器区域的面积可以减少,其中用于列选择的所有信号线都设置在读出放大器区域。