发明名称 |
Hierarchical redundancy scheme for high density monolithic memories |
摘要 |
Hierarchical redundancy is implemented in a monolithic memory by providing standard row and column redundancy augmented by redundant blocks, each having its own internal row and block redundancy. The efficiency of the redundant blocks is further enhanced by subdividing the redundant blocks into individually replaceable segments of rows or columns. A test and repair algorithm utilizing the hierarchical redundancy scheme is also provided.
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申请公布号 |
US5377146(A) |
申请公布日期 |
1994.12.27 |
申请号 |
US19930096732 |
申请日期 |
1993.07.23 |
申请人 |
ALLIANCE SEMICONDUCTOR CORPORATION |
发明人 |
REDDY, CHITRANJAN N.;MEDHEKAR, AJIT K. |
分类号 |
G11C29/00;(IPC1-7):G11C7/00 |
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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