This lecture covers the implementation of logic gates in semiconductor material, focusing on two main logic families: Transistor to Transistor Logic (TTL) and Complementary Metal Oxide Silicon (CMOS). It discusses the technology of Integrated Circuits (ICs), static and dynamic hazards, gated clocks, real D flip-flops, metastability, critical path, maximum clock frequency, and switch debouncing. The lecture also delves into the elimination of static hazards using Karnaugh maps, the theory of zero-delay models, and the construction of NOR gates in TTL and CMOS technologies.