In this video, I start with the basics: what “synthesis” actually means in VLSI. Just like I explained, synthesis is simply converting or translating high-level RTL into a gate-level netlist. But don’t stop there—practically, synthesis is translation + optimization + mapping. The tool translates the RTL, optimizes it using constraints to meet performance/area goals, and then maps the optimized logic to real standard cells from the technology libraries. Then I clearly separate logical synthesis vs physical synthesis. Logical synthesis converts RTL to gate-level netlist, and physical synthesis takes that netlist and maps it to the specified IC/technology. After that, I cover the key inputs (RTL, .lib/.lef/.tf technology files, SDC constraints, and UPF for power intent) and the outputs (gate-level netlist, updated SDC/UPF, and reports like report_timing and report_qor). Finally, I walk you through the synthesis flow in DC Shell style: set link/target library, analyze/elaborate (or read_file), define environment (PVT, wireload, interface), apply constraints, choose compile strategy (top-down/bottom-up/mixed), run compile/compile_ultra, check reports, fix violations, and write out the final netlist. This is exactly the kind of interview-ready flow you should be able to explain confidently.