Abstract
We propose selective scaling of device footprint for 65 nm and beyond CMOS technologies. The benefits of selective scaling of device footprint are illustrated using an ultrathin-body fully depleted silicon-on-insulator transistor as an example. We study the effect of footprint scaling on device, circuit, and system level performance. A complete 2D device structure is modeled for the numerical analysis. The results predict that an optimal footprint design can provide 30% smaller chip layout area, 20% faster speed, and 10% less dynamic power on overall chip performance benchmarked with a 53-bit pipelined multiplier. The variability analysis on both dc and ac characteristics indicates that the benefits of selective footprint scaling are not degraded by device variation
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