发明授权
- 专利标题： Semiconductor memory device with efficient redundancy operation
- 专利标题（中）： 半导体存储器件具有高效的冗余操作
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申请号： US09722472申请日： 2000-11-28
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公开(公告)号： US06400618B1公开(公告)日： 2002-06-04
- 发明人: Toshikazu Nakamura , Yoshinori Okajima , Hiroyuki Sugamoto
- 申请人： Toshikazu Nakamura , Yoshinori Okajima , Hiroyuki Sugamoto
- 优先权： JP2000-234844 20000802
- 主分类号： G11C700
- IPC分类号： G11C700
摘要：
A semiconductor memory device, comprising a fuse circuit which indicates a defective portion in a row direction, and also indicates the defective portion in a column direction, and a control circuit which switches data buses to avoid the defective portion indicated in the column direction by the fuse circuit when the defective portion indicated in the row direction by the fuse circuit corresponds to a row address that is input to the semiconductor memory device.
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