发明授权
- 专利标题: Cancellation of redundant elements with a cancel bank
- 专利标题(中): 取消银行的冗余元素
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申请号: US10224989申请日: 2002-08-20
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公开(公告)号: US06690611B2公开(公告)日: 2004-02-10
- 发明人: Douglas J. Cutter , Fan Ho , Kurt D. Beigel
- 申请人: Douglas J. Cutter , Fan Ho , Kurt D. Beigel
- 主分类号: G11C700
- IPC分类号: G11C700
摘要:
The cancellation of a redundant element of an integrated circuit with a cancel bank is disclosed. In one embodiment, a fuse or antifuse bank is coupled to the redundant element and permanently programmed to respond to the address of a defective primary element. If the redundant element is found to be defective, the fuse or antifuse bank is canceled, and a result the redundant element is also canceled. A cancel line of the fuse or antifuse bank, along with the cancel line of each of a plurality of other fuse or antifuse banks, is coupled to a cancel bank. The cancel bank comprises a multiplexer and a plurality of cancel antifuses less in number than the number of fuse or antifuse banks. The cancel antifuses are selectively enabled such that the fuse or antifuse bank coupled to the defective redundant element may be canceled.
公开/授权文献
- US20030035330A1 Cancellation of redundant elements with a cancel bank 公开/授权日:2003-02-20
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