发明授权
US08441836B2 Sector array addressing for ECC management 有权
ECC管理的扇区阵列寻址

  • 专利标题: Sector array addressing for ECC management
  • 专利标题(中): ECC管理的扇区阵列寻址
  • 申请号: US12884413
    申请日: 2010-09-17
  • 公开(公告)号: US08441836B2
    公开(公告)日: 2013-05-14
  • 发明人: Ward ParkinsonThomas Trent
  • 申请人: Ward ParkinsonThomas Trent
  • 申请人地址: US MI Sterling Heights
  • 专利权人: Ovonyx, Inc.
  • 当前专利权人: Ovonyx, Inc.
  • 当前专利权人地址: US MI Sterling Heights
  • 代理商 Kevin L. Bray
  • 主分类号: G11C11/00
  • IPC分类号: G11C11/00
Sector array addressing for ECC management
摘要:
An addressing scheme for non-volatile memory arrays having short circuit defects that manages the demand for error correction. The scheme generally avoids simultaneous active driving of the row line and column line of the selected cell during write. Instead, only a single row or column line is actively driven at any one time and all other array lines are left floating. In addition, the number of memory cells accessed from a given row or column during a fetch may be limited. The benefits of the scheme include preventing short circuits from drawing excess currents through the array and limiting the frequency of read or write failures caused by short circuits to a manageable number. In one embodiment, the scheme maintains the demand for error correction to within the error correction capability of a flash controller. Exemplary embodiments include phase-change memory arrays.
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