- 专利标题: Hardware and software programmable fuses for memory repair
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申请号: US10101399申请日: 2002-03-19
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公开(公告)号: US20030182531A1公开(公告)日: 2003-09-25
- 发明人: Esin Terzioglu , Gil I. Winograd
- 主分类号: G06F009/26
- IPC分类号: G06F009/26
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.
公开/授权文献
- US06791367B2 Hardware and software programmable fuses for memory repair 公开/授权日:2004-09-14
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