A Parasitic Resistance Extraction Method for Early Analysis of Complex Shaped Power Delivery Networks

Abstract

*-This work presents a novel method of resistances extraction from arbitrary shaped 2D polygonal interconnects. It includes a new approach to resistor network construction based on medial axis transform and a simple set of analytical formulas for resistances estimation. The extracted circuits are compact enough while naturally mappable onto the original complex layout. These properties are useful in early design stage power delivery modeling with voltage drop or equivalent resistance maps visualization. The method is implemented within the industrial power integrity analysis system and demonstrated high efficiency while keeping enough accuracy.