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    • 6. 发明专利
    • Semiconductor storage
    • 半导体存储
    • JP2008112525A
    • 2008-05-15
    • JP2006295788
    • 2006-10-31
    • Grandis IncRenesas Technology Corpグランディス インコーポレイテッドGrandis,Inc.株式会社ルネサステクノロジ
    • KAWAGOE TOMOYA
    • G11C11/15H01L21/8246H01L27/105H01L43/08
    • PROBLEM TO BE SOLVED: To reduce the occurrence of write error when reading data from a memory device.
      SOLUTION: The semiconductor storage comprises: a memory cell array 4; a R/W control circuit 5; and a reference resistance circuit. The memory cell array 4 stores and holds data in a plurality of magnetoresistive elements connected to a word line WLy (y=0, 1, ..., 2n, 2n+1, ...), and a bit line BLix, and a source line SLix (i=0, 1, ..., m, ..., M; x=0, 1). The R/W control circuit 5 controls voltage applied to the bit line BLix and source line SLix. The reference resistance circuit generates a prescribed reference resistance value. The R/W control circuit 5 performs control so that voltages Vout_B0, Vout_B1 applied to the reference resistance circuit are increased when the value of resistance in the magnetoresistive element is the maximum resistance value Rmax when reading data from the memory cell array 4, and reduces voltages Vout0, Vout1 applied to the magnetoresistive element.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:减少从存储器件读取数据时写入错误的发生。 解决方案:半导体存储器包括:存储单元阵列4; R / W控制电路5; 和参考电阻电路。 存储单元阵列4存储并保持连接到字线WLy(y = 0,1,...,2n,2n + 1,...)和位线BLix的多个磁阻元件中的数据,以及 源线SLix(i = 0,1,...,m,...,M; x = 0,1)。 R / W控制电路5控制施加到位线BLix和源极线SLix的电压。 参考电阻电路产生规定的参考电阻值。 R / W控制电路5进行控制,使得当从存储单元阵列4读取数据时,当磁阻元件的电阻值为最大电阻值Rmax时,施加到参考电阻电路的电压Vout_B0,Vout_B1增加,并且减小 施加到磁阻元件的电压Vout0,Vout1。 版权所有(C)2008,JPO&INPIT