Wire delay variability in nanoscale technology and its impact on physical design

@article{Nassif2013WireDV,
  title={Wire delay variability in nanoscale technology and its impact on physical design},
  author={Sani R. Nassif and Gi-Joon Nam and Shayak Banerjee},
  journal={International Symposium on Quality Electronic Design (ISQED)},
  year={2013},
  pages={591-596}
}
Current technology scaling trends are changing the character of wire delay variability. The distribution of wire delay is asymmetric, with a long positive tail which can be as much as 2X longer than the negative tail. This is due to the geometry of these wires, where the aspect ratio is biased towards tall thin wire cross-sections, as well as manufacturing induced variations particularly from lithography. These trends are important for timing closure, whether done via corner-based or… CONTINUE READING
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