Tech news in 3 minutes

Semidynamics Brings Its Full Inference Stack to ISC HPC 2026 — And Why It Matters

27 d ago

Chiplet-based semiconductors, combining digital, memory, analog, and photonic functions in a single package, promise higher performance, lower power, and lower cost. However, these highly compressed form factors introduce reliability challenges that demand multiphysics analysis—joint electrical, thermal, electromagnetic (EM), mechanical, and signal/power integrity evaluation. While individual analyses have long been used for single-die designs, chiplet-based systems now require full multiphysics signoff. Multi-die designs have become ubiquitous in leading applications. Datacenters house AI systems combining CPUs, GPUs, and high-bandwidth memory (HBM) stacks, where thermal loads from high power draw can cause performance throttling, mechanical failures, die warpage, and delamination. Electromigration and power integrity risks also threaten reliability. Electric vehicles (EVs) face similar issues: power switches operate at high voltages and frequencies up to 200°C, generating parasitic oscillations and electromagnetic interference that affect drivetrain and cabin electronics. Automotive electronics must meet safety standards over 15–20 year lifetimes in hostile conditions. Wireless infrastructure (cell towers) also demands 15–20 year lifespans, with thermal degradation from multiple power amplifiers and MIMO beam management, plus EMI from handling many channels. Standalone thermal, mechanical, or EM analysis is no longer sufficient because thermal profiles affect mechanical and aging behaviors, EMI impacts signal and power integrity, and use-cases vary. Full multiphysics analysis, concurrent with design, is essential for accurate reliability modeling. Following its acquisition of Ansys, Synopsys released its first Multiphysics Fusion solutions for chiplets and multi-die designs. The 3DIC Compiler platform integrates RedHawk-SC for dynamic power integrity, RedHawk-SC Electrothermal for thermal analysis, and HFSS-IC for high-frequency EM simulation in a unified environment, enabling concurrent EMIR, thermal, signal integrity, and electromechanical stress signoff. Quotes from MediaTek, NVIDIA, and Samsung report up to 3× faster IR-drop-aware STA signoff and 10× acceleration in multiphysics design closure within individual dies and across multi-die designs. Similar gains apply for analog and photonic components. The merger thus advances systems performance and reliability for cutting-edge multi-die designs.