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    • 35. 发明申请
    • Non-volatile Memory Device And A Method Of Operating Same
    • 非易失性存储器件及其操作方法相同
    • US20130242672A1
    • 2013-09-19
    • US13419269
    • 2012-03-13
    • Hieu Van TranHung Quoc NguyenNhan Do
    • Hieu Van TranHung Quoc NguyenNhan Do
    • G11C16/04
    • G11C16/04G11C16/0425G11C16/06G11C16/12G11C16/30G11C16/3418
    • An array of non-volatile memory cells in a semiconductor substrate of a first conductivity type. Each memory cell comprises first and second regions of a second conductivity type on a surface of the substrate, with a channel region therebetween. A word line overlies one portion of the channel region, is adjacent to the first region, and has little or no overlap with the first region. A floating gate overlies another portion of the channel region, and is adjacent to the first portion and the second region. A coupling gate overlies the floating gate. An erase gate overlies the second region. A bit line is connected to the first region. A negative charge pump circuit generates a negative voltage. A control circuit generates a plurality of control signals in response to receiving a command signal, and applies the negative voltage to the word line of unselected memory cells.
    • 在第一导电类型的半导体衬底中的非易失性存储单元阵列。 每个存储单元包括在衬底的表面上的第二导电类型的第一和第二区域,其间具有沟道区域。 字线重叠在通道区域的一部分上,与第一区域相邻,并且与第一区域几乎没有或没有重叠。 浮动栅极覆盖沟道区域的另一部分,并且与第一部分和第二区域相邻。 耦合栅极覆盖浮栅。 擦除门覆盖第二区域。 位线连接到第一区域。 负电荷泵电路产生负电压。 控制电路响应于接收到命令信号而产生多个控制信号,并将负电压施加到未选择存储单元的字线。