会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明申请
    • NONVOLATILE SEMICONDUCTOR MEMORY DEVICE AND MEMORY SYSTEM
    • 非易失性半导体存储器件和存储器系统
    • WO2009031675A1
    • 2009-03-12
    • PCT/JP2008/066141
    • 2008-09-02
    • KABUSHIKI KAISHA TOSHIBAHONMA, MitsuakiSHIBATA, Noboru
    • HONMA, MitsuakiSHIBATA, Noboru
    • G11C16/02G11C16/04G11C16/06H01L27/10
    • G11C11/5628G11C11/5642G11C16/0483G11C2211/5646
    • A semiconductor memory device executes a writing operation based on a first bit assignment pattern at the time of writing. The first bit assignment pattern is created such that pieces of x-bit data assigned to adjacent threshold distributions have only a one-bit difference therebetween and an alignment of data on the same digit of 2x pieces of x-bit data corresponding to an alignment of 2x pieces of threshold distributions contains at least two transition points of "0" and "1". The semiconductor memory device operates at the time of reading such that a read voltage corresponding to the transition points of "0" and "1" is applied to the word line on a page basis to determine x-bit data stored in the memory cell one-bit by one-bit based on the first assignment pattern. The page contains a set of data on the same digit bit in pieces of x-bit data stored in the memory cells connected to the word line.
    • 半导体存储器件在写入时基于第一位分配模式执行写入操作。 第一位分配模式被创建,使得分配给相邻阈值分布的X位数据片段之间只有一位差异,并且对应于与x位数据对齐的2个x位数据的相同数位上的数据对齐 2个阈值分布包含至少两个转换点“0”和“1”。 半导体存储器件在读取时操作,使得对应于“0”和“1”的转换点的读取电压在页面上施加到字线,以确定存储在存储器单元中的x位数据 - 基于第一个分配模式位1比特。 该页面包含存储在连接到字线的存储单元中的x位数据的相同位数位上的一组数据。