发明名称 |
Flexible row redundancy system |
摘要 |
A row redundancy system is provided for replacing faulty wordlines of a memory array having a plurality of banks. The row redundancy system includes a remote fuse bay storing at least one faulty address corresponding to a faulty wordline of the memory array; a row fuse array for storing row fuse information corresponding to at least one bank of the memory array; and a copy logic module for copying at least one faulty address stored in the remote fuse bay into the row fuse array; wherein the copy logic module is programmed to copy the at least one faulty address into the row fuse information stored in the row fuse array corresponding to a predetermined number of banks in accordance with a selectable repair field size.
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申请公布号 |
US7774660(B2) |
申请公布日期 |
2010.08.10 |
申请号 |
US20080131307 |
申请日期 |
2008.06.02 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
HSU LOUIS L.;FREDEMAN GREGORY J.;JOSHI RAJIV V.;KIRIHATA TOSHIAKI |
分类号 |
G11C29/00 |
主分类号 |
G11C29/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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