发明授权
- 专利标题： Redundancy fuse circuit
- 专利标题（中）： 冗余保险丝电路
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申请号： US10803936申请日： 2004-03-19
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公开(公告)号： US07123527B2公开(公告)日： 2006-10-17
- 发明人: Naokazu Kuzuno , Kiyoharu Oikawa , Kimio Maruyama , Yasuhiro Watanabe , Masaya Kubota
- 申请人： Naokazu Kuzuno , Kiyoharu Oikawa , Kimio Maruyama , Yasuhiro Watanabe , Masaya Kubota
- 申请人地址： JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权： JP2003-078474 20030320
- 主分类号： G11C7/00
- IPC分类号： G11C7/00
摘要：
A redundancy fuse circuit including a function of replacing a defective cell in a memory cell array with a redundancy cell, comprising a fuse circuit in which an address of the defective cell or a block including the defective cell is programmed as a defective address by presence/absence of cut-off of a fuse, a data latch circuit which latches a signal supplied from a tester to program the defective address in a dummy manner, and a comparator which replaces the defective cell with the redundancy cell based on an address signal supplied from the tester and an output signal of the data latch circuit at an operation confirmation time of the redundancy fuse circuit.
公开/授权文献
- US20040240249A1 Redundancy fuse circuit 公开/授权日：2004-12-02
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