• 专利标题: Hardware and software programmable fuses for memory repair
  • 申请号: US10101399
    申请日: 2002-03-19
  • 公开(公告)号: US20030182531A1
    公开(公告)日: 2003-09-25
  • 发明人: Esin TerziogluGil I. Winograd
  • 主分类号: G06F009/26
  • IPC分类号: G06F009/26
Hardware and software programmable fuses for memory repair
摘要:
The present invention relates to a system and method for increasing the manufacturing yield of a plurality of memory cells used in cell arrays. A programmable fuse, having both hardware and software elements, is used with the plurality of memory cells to indicate that at least one memory cell is unusable and should be shifted out of operation. The software programmable element includes a programmable register adapted to shift in an appropriate value indicating that at least one of the memory cells is flawed. The hardware element includes a fuse gated with the programmable register. Shifting is indicated either by software programmable fuse or hard fuse. Soft fuse registers may be chained together forming a shift register.
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