A sensitivity analysis of resonant H-tree clock distribution networks is presented in this paper for a TSMC 0.18 μm CMOS technology. The analysis focuses on the effect of the driving buffer output resistance, on-chip inductor and capacitor size, and signal and shielding transmission line width and spacing on the output voltage swing and power consumption. A two level resonant H-tree network exhibits low sensitivity to these variations. Categories and Subject Descriptors B.7.1 [Integrated Circuits]: Types and Design Styles – Advanced technologies, VLSI (very large scale integration). General Terms Design. Keywords Resonance, clock distribution networks, on-chip inductors and capacitors, H-tree sector, sensitivity.
Jonathan Rosenfeld, Eby G. Friedman