Title: Non Uniform On Chip Power Delivery Network Synthesis Methodology,
Abstract: In this paper, we proposed a non-uniform power delivery network (PDN)
synthesis methodology. It first constructs initial PDN using uniform approach.
Then preliminary power integrity analysis is performed to derive IR-safe
candidate window. Congestion map is obtained based global route congestion
estimation. A self-adaptive non-uniform PDN synthesis is then performed to
globally and locally optimize PDN over selected regions. The PDN synthesis is
congestion-driven and IR- guarded. Experimental results show significant timing
important in trade-off small PDN length reduction with no EM/IR impact. We
further explored potential power savings using our non-uniform PDN synthesis
methodology.