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Intermediate

Low-Power 4-bit Adder with Layout Design

Power-optimized 4-bit adder carried through to layout with pre/post delay comparison

A low-power 4-bit adder circuit designed at the transistor level and laid out physically, with pre-layout and post-layout delay estimated and compared to quantify the impact of parasitics.

What's included

  • Low-power 4-bit adder schematic design
  • Physical layout with DRC/LVS clean verification
  • Pre-layout vs. post-layout delay comparison
  • Power estimation at schematic level
  • Report with schematic, layout and waveform screenshots

Tech stack

Cadence VirtuosoSPICE (HSPICE/LTspice)CMOS TechnologyLayout (DRC/LVS)