The core theory involves calculating digital IC design parameters for CMOS inverters to assess signal integrity and speed, specifically focusing on noise margin determination via the delta voltage (ΔV) between switching thresholds and Elmore delay estimation using RC tree models. The framework relies on formal semiconductor device physics principles where transistors transition between regions of operation—saturation, velocity saturation, linear/ohmic region, or cut-off based on specific gate-source/drain voltages—and account for short-channel effects such as channel length modulation and carrier velocity saturation to derive equivalent resistance (R_EQ). This theoretical abstraction allows the estimation of propagation time constants and worst-case voltage limits at nodes without sub-threshold leakage in ideal transmission gates.
The core theory involves calculating digital IC design parameters for CMOS inverters to assess signal integrity and speed, specifically focusing on noise margin determination via the delta voltage (Δ…