Die Stacking Techniques in 3DIC Compiler refer to advanced methods used in three-dimensional integrated circuit (3D IC) design to vertically integrate multiple semiconductor dies into a single package. These techniques optimize performance, reduce power consumption, and improve interconnect density between stacked layers. The 3DIC Compiler helps design efficient die stacking layouts, including through-silicon vias (TSVs), micro-bumps, and interposer-based connections. It enables better thermal management, signal integrity, and space utilization in chip design. These techniques are critical for high-performance computing, AI chips, and mobile processors. They allow semiconductor designers to achieve higher functionality in smaller form factors.