Case Study 1: Combinational cells
As devices approach the atomistic level, intrinsic variations become more abundant, leading to lower production yields and higher failure rates. Novel device architectures and circuit design methodologies are needed to accommodate the increased variability of individual device characteristics.
ngenics’ unique automated and scalable, multi-objective cell design technology platform, MOTIVATED™ optimises standard performance measures such as speed and power, as well as addressing the issues of variability brought about by the reduction of devices to the deep sub-micron scale.
3-input AND standard cell
AIM: Scaling the standard 8T design from a 40nm process to a 25nm process
OBJECTIVES: Optimising for propagation delay, dynamic power (both including the effects of stochastic variability) and area.
27.8% reduction in dynamic power spread
8.4% reduction in average dynamic power
12.8% reduction in propagation delay spread
22.8% Reduction in mean propagation delay
2.1% reduction in mean dynamic power
32.5% Reduction in propagation delay spread
26.3% Reduction in average propagation delay