Memory system with a layer comprising a dedicated redundancy area
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United States of America Patent
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Nov 18, 2014
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N/A
app pub date -
Sep 17, 2012
filing date -
Sep 16, 2011
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Abstract
Systems and methods are disclosed that may include a first layer comprising a first redundant memory element, an input/output interface, a first layer fuse box, and a fuse blowing control. These systems and methods also may include a second layer coupled to the first layer through a first connection comprising a second layer memory element and a second layer fuse box coupled to the first redundant memory element. In addition, these systems and methods may further include a redundancy register coupled to the first layer, wherein upon the failure of part of the second layer memory element, the redundancy register provides information to the fuse blowing control that allocates part of the first redundant memory element to provide redundancy for the failed part of the second layer memory element by blowing elements in the first layer fuse box and the second layer fuse box.
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