Ground bounce modelling for digital gigascale integrated circuits

摘要

In the paper, an analytical model for ground bounce noise evaluation taking into account the interdependence between I_(DD) switching current and V_(DD) noise voltage is presented. The model shows the discrepancies from general accepted assumption of independence between the two variables. The main conclusion is that noise calculations using the independence assumption cause an overestimation of the noise levels. The results are verified through realistic simulations and for different technology nodes and accurate analysis of two canonical circuits.