Gate delay calculation considering the crosstalk capacitances

Abbaspour, S.; Pedram, M.

doi:10.1109/aspdac.2004.1337714

Cited by 6 publications

(1 citation statement)

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“…In [14], [15] techniques were proposed to accurately compute the Miller coupling capacitance C can also be computed very efficiently by approximating the victim-aggressor waveforms with ramps and using the respective slew rates in Equation 3. Once the coupling capacitance is decoupled from the aggressor node, the Elmore delay of the victim can be computed using the Equation 2.…”

Section: Proposed Approachmentioning

confidence: 99%

Interconnect performance corners considering crosstalk noise

Gandikota

Blaauw

Sylvester

2009

2009 IEEE International Conference on Computer Design

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Abstract-Process induced variations in the interconnect capacitance and resistance have resulted in significant uncertainly in the interconnect delay. In this work, we propose a new method to compute the interconnect corner considering coupling-noise due to simultaneous switching of aggressors. In prior approaches, the interconnect corners were computed under the assumption that the aggressor nets are not switching and no coupling-noise is injected on the victim net. In this paper, we first show that the interconnect corners obtained under such assumptions could in reality be much different from the true interconnect corner and could therefore result in optimistic delay analysis, particularly for fast-path analysis performed to check hold time violations. We also show that in some cases, the interconnect corner may not lie at an extreme point of the process variation range. In this work, we use the Elmore delay metric to efficiently search for the correct interconnect corner of the victim stage considering delay noise. We then show experimental results to verify the effectiveness of our proposed approach and demonstrate that the traditional approaches of computing the interconnect corners could lead to errors of up to 60% on a net by net basis.

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Section: Proposed Approachmentioning

confidence: 99%