When I first started doing IC design back in 1978 we had hierarchical designs, and that was doing a relatively simple 16Kb DRAM chip with only 32,000 transistors using 6um (aka 6,000 nm) design rules. SoC designs today make massive use of hierarchy at all levels of IC design: IC Layout, transistor netlist, gate level netlist, RTL … Read More
Hierarchy Applied to Semiconductor IP Reuse
