发明授权
- 专利标题: Semiconductor memory
- 专利标题(中): 半导体存储器
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申请号: US10628168申请日: 2003-07-28
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公开(公告)号: US06937532B2公开(公告)日: 2005-08-30
- 发明人: Ichiro Hatanaka , Akinori Shibayama , Yoshinobu Yamagami
- 申请人: Ichiro Hatanaka , Akinori Shibayama , Yoshinobu Yamagami
- 申请人地址: JP Osaka
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JP Osaka
- 代理机构: Hamre, Schumann, Mueller & Larson P.C.
- 优先权: JP2002-220242 20020729
- 主分类号: G11C11/413
- IPC分类号: G11C11/413 ; G11C5/02 ; G11C29/00 ; G11C29/04 ; H01L21/82 ; H01L21/8242 ; H01L21/8244 ; H01L27/108 ; H01L27/11 ; G11C7/00
摘要:
A semiconductor memory includes a memory cell array, a redundancy repair signal generator, and a row decoder. The memory cell array includes a plurality of memory cell rows and at least one redundant memory cell row. The redundancy repair signal generator generates a redundancy repair signal that indicates an address of a defective memory cell row. The row decoder receives a row address signal that indicates a memory cell row including a memory cell to be accessed and selects the redundant memory cell row in accordance with the redundancy repair signal generated by the redundancy repair signal generator. The redundancy repair signal generator is located opposite to the row decoder with the memory cell array placed therebetween. This configuration can achieve a reduction in free space and thus a reduction in area loss.
公开/授权文献
- US20040022098A1 Semiconductor memory 公开/授权日:2004-02-05
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