Conceptual

Digital IC Design: Elmore Delay Calculation and Gate Sizing for CMOS Logic

The core principle is Elmore delay analysis within CMOS logic design, which utilizes a hierarchical decomposition of capacitance into local and global components to model signal propagation time in RC interconnects. The theory relies on the definition of equivalent resistance through transistor stacks and node capacitance scaling based on device geometry to satisfy worst-case electrical effort constraints ($\eta$) relative to reference inverters. This concept belongs to VLSI physical design optimization, specifically focusing on timing closure, gate sizing strategies, and delay minimization in Digital IC Design domains.