Measurements of process variability in 40-nm regular and nonregular layouts
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European Commisision's projectSYNAPTIC - SYNthesis using Advanced Process Technology Integrated in regular Cells, IPs, architectures, and design platforms (EC-FP7-248538)
As technology scales down, IC design is becoming more difficult due to the increase in process variations, which translates into a dispersion of circuit parameter values thus degrading manufacturing yield. Regular layouts are recommended to reduce variability with the cost of area overhead with respect to conventional layouts. The aim of this paper is to measure the impact of variability in two implementations of the same circuit in a commercial 40-nm technology: 1) a regular layout style and a compact and 2) nonregular layout. Experimental results show a 60% reduction in variability with a cost of 60% area overhead.
CitationMauricio, J.; Moll, F.; Gomez, S. Measurements of process variability in 40-nm regular and nonregular layouts. "IEEE transactions on electron devices", 01 Febrer 2014, vol. 61, núm. 2, p. 365-371.
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