发明授权
- 专利标题： Circuit to check overerasing of repair fuse cells
- 专利标题（中）： 检查维修保险丝电池的过电流
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申请号： US09468933申请日： 1999-12-22
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公开(公告)号： US06404680B1公开(公告)日： 2002-06-11
- 发明人: Oh Won Kwon
- 申请人： Oh Won Kwon
- 优先权： KR98-59344 19981228
- 主分类号： G11C1604
- IPC分类号： G11C1604
摘要：
The present invention comprises a first means to select all repair fuse cells, using a test mode, and to sense each repair fuse cell state depending on the applied read-out voltage; a logical means to generate decision signals to decide the overerasing state of said repair fuse cells by logically combining sensed signals from said each repair fuse cell; and a second means to read output signals of said logical means.
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