Dual interlocked cell (DICE) storage element with reduced charge sharing
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United States of America Patent
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May 17, 2016
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N/A
app pub date -
Jul 26, 2013
filing date -
Jul 26, 2013
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Abstract
Integrated circuits with clocked storage elements are provided. A clocked storage element such as a flip-flop circuit may include a master latch, a slave latch, and associated control circuitry. The master and slave latches may be implemented using dual-interlocked cell (DICE) latch configurations. The DICE latch may include at least four inverting circuits having two redundant node pairs and may exhibit immunity to soft error upset (SEU) events. Each of the master and slave latches may be separated into different portions so that the redundant nodes are physically separated by interposing circuitry. The redundant nodes may also be formed in separate wells to further minimize charge sharing. The different portions of the master and slave latch may be interleaved to minimize area.
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