发明授权
- 专利标题: Semiconductor memory device technical field
- 专利标题(中): 半导体存储器技术领域
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申请号: US243927申请日: 1981-02-20
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公开(公告)号: US4392211A公开(公告)日: 1983-07-05
- 发明人: Masao Nakano , Fumio Baba , Tomio Nakano , Yoshihiro Takemae , Hirohiko Mochizuki
- 申请人: Masao Nakano , Fumio Baba , Tomio Nakano , Yoshihiro Takemae , Hirohiko Mochizuki
- 申请人地址: JPX Kawasaki
- 专利权人: Fujitsu Limited
- 当前专利权人: Fujitsu Limited
- 当前专利权人地址: JPX Kawasaki
- 优先权: JPX54-79819 19790625
- 主分类号: G11C11/413
- IPC分类号: G11C11/413 ; G11C29/00 ; G11C29/04 ; G11C7/00
摘要:
A semiconductor memory device wherein a redundancy memory cell array incorporated with main memory cell matrixes is disclosed. Memory cells of the main memory cell matrixes are selected by first and third decoders while memory cells of the redundancy memory cell array are selected by second and third decoders. When the redundancy memory cell array is selected by the second decoder, the transmission of a clock signal to the first decoders is stopped by a switching circuit.
公开/授权文献
- US4946290A Expandable bag 公开/授权日:1990-08-07