Automated IRDrop ECO

Abstract

Power Distribution Network (PDN) Analysis is one of the important aspects in design planning. A typical rule of thumb is 20% of the routing resources allocated for power distribution network. However, with the introduction of 2.5D packaging for multi-chip on package, the power budget allocation is yet relax for additional IR Drop in interposer layers, hence a power distribution network engineering change order (ECO) is a function of design implementation flow, to be explored and deployed. This paper will share the in-design power distribution network ECO and results. The seamless in-design power distribution network ECO results in 7% IRDrop improvement compared to out of the box solutions from EDA tools.