Cross-talk noise computation using mixed integer linear program problems and their solutions
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United States of America Patent
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Nov 17, 2015
Grant Date -
Feb 12, 2015
app pub date -
Aug 20, 2013
filing date -
Aug 12, 2013
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Abstract
A method includes forming a mixed integer linear problem (MILP) capturing at least a plurality of timing windows over which aggressor net(s), electromagnetically coupled to a victim net in a circuit, produce computed cross-talk noise pulses potentially contributing to a maximum noise for the victim net. The MILP is solved to determine the maximum noise at the victim net. Responsive to the maximum noise meeting one or more criteria, at least an indication of the victim net is output. Forming may include forming a linear problem using overlapping timing windows for which noise pulses contribute to the maximum noise and converting the linear problem to the mixed integer linear problem by introducing into the linear problem binary variables that determine whether individual ones of overlapping or non-overlapping noise pulses from the one or more aggressor nets contribute to the maximum noise. Apparatus and program products are also disclosed.
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