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    • 5. 发明申请
    • SEMICONDUCTOR MEMORY DEVICE
    • 半导体存储器件
    • WO2009096136A1
    • 2009-08-06
    • PCT/JP2008/073905
    • 2008-12-22
    • KABUSHIKI KAISHA TOSHIBANAGASHIMA, Hiroyuki
    • NAGASHIMA, Hiroyuki
    • G11C29/00
    • G11C29/883G11C29/76G11C29/82G11C29/88
    • There is provided a semiconductor memory device having a plurality of memory cell layers which can be used even if part of the memory cell layers is determined as defective. The semiconductor memory device includes a stacked memory cell array having a laminated plurality of memory cell layers, each of which has a plurality of blocks; a layer quality information storing circuit (10) which can store layer quality information indicating whether the individual memory cell layer is a normal memory cell layer or a defective memory cell layer so as to identify a memory cell layer in which the number of defective blocks found is equal to or greater than a predetermined number as a defective memory cell layer and the other memory cell layers as normal memory cell layers; and address converting circuit (11) in which if an externally input address input from outside corresponds to the block in the defective memory cell layer, the externally input address is address-converted so as to correspond to the block of the normal memory cell layer.
    • 提供了具有多个存储单元层的半导体存储器件,即使存储单元层的一部分被确定为有缺陷,也可以使用该存储单元层。 半导体存储器件包括层叠的存储单元阵列,其具有层叠的多个存储单元层,每个存储单元层具有多个块; 层质量信息存储电路(10),其可以存储表示各个存储单元层是正常存储单元层还是缺陷存储单元层的层质量信息,以识别发现有缺陷块的数量的存储单元层 等于或大于预定数量作为缺陷存储单元层,而其它存储单元层作为正常存储单元层; 以及地址转换电路(11),其中如果从外部输入的外部输入地址对应于缺陷存储单元层中的块,则将外部输入的地址进行地址转换,以对应于正常存储单元层的块。