By Pinhong Chen
Because the function dimension decreases in deep sub-micron designs, coupling capacitance turns into the dominant think about overall capacitance. The ensuing crosstalk noise should be accountable for sign integrity matters and critical timing edition. usually, static timing research instruments have overlooked go coupling results among wires altogether. more recent instruments easily approximate the coupling capacitance by means of a 2X Miller consider order to compute the worst case hold up. The latter process not just reduces hold up calculation accuracy, yet is also proven to underestimate the hold up in sure eventualities.
This publication describes exact yet conservative equipment for computing hold up version because of coupling. moreover, almost all these tools are computationally effective adequate to be hired in a static timing research software for complicated built-in electronic circuits. to accomplish accuracy, a extra exact computation of the Miller issue is derived. to accomplish either computational potency and accuracy, numerous mechanisms for pruning the hunt area are specific, together with:
-Spatial pruning - decreasing aggressors to these in actual proximity,
-Electrical pruning - decreasing aggressors through electric energy,
-Temporal pruning - lowering aggressors utilizing timing home windows,
-Functional pruning - lowering aggressors by means of Boolean useful research.
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