发明授权
US07894263B2 High voltage generation and control in source-side injection programming of non-volatile memory 有权
非易失性存储器的源侧注入编程中的高压发生和控制

  • 专利标题: High voltage generation and control in source-side injection programming of non-volatile memory
  • 专利标题(中): 非易失性存储器的源侧注入编程中的高压发生和控制
  • 申请号: US11864825
    申请日: 2007-09-28
  • 公开(公告)号: US07894263B2
    公开(公告)日: 2011-02-22
  • 发明人: Dana LeeHock So
  • 申请人: Dana LeeHock So
  • 申请人地址: US CA Milpitas
  • 专利权人: SanDisk Corporation
  • 当前专利权人: SanDisk Corporation
  • 当前专利权人地址: US CA Milpitas
  • 代理机构: Vierra Magen Marcus & DeNiro LLP
  • 主分类号: G11C16/04
  • IPC分类号: G11C16/04
High voltage generation and control in source-side injection programming of non-volatile memory
摘要:
Non-volatile memory is programmed using source side hot electron injection. To generate a high voltage bit line for programming, the bit line corresponding to a selected memory cell is charged to a first level using a first low voltage. A second low voltage is applied to unselected bit lines adjacent to the selected bit line after charging. Because of capacitive coupling between the adjacent bit lines and the selected bit line, the selected bit line is boosted above the first voltage level by application of the second low voltage to the unselected bit lines. The column control circuitry for such a memory array does not directly apply the high voltage and thus, can be designed to withstand lower operating voltages, permitting low operating voltage circuitry to be used.
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