EMIB-T Roadmap, Custom HBM, HBM4 Packaging Challenges, Microfluidic Cooling, Photonic Interconnects, and More - SemiAnalysis

As transistor scaling has slowed, advanced packaging has emerged as the primary scaling vector for chip performance enhancement. However, the increasing size and demand for high-speed interconnects in... Read original →

Advanced packaging has shifted from a performance enabler to the central battleground in AI chip architecture. Intel’s EMIB-T, leveraging TSVs, not only alleviates HBM4E power delivery bottlenecks but also forces upgrades across substrates and test equipment—triggering a cascade through the tech stack. TSMC (Taiwan, China) and Microsoft’s microfluidic cooling embeds thermal management directly into the package, raising entry barriers significantly. Geopolitically, U.S. export controls may soon extend to TSV and photonic integration tools, compelling SK Hynix and Samsung to localize supply chains—at a 15–20% capex premium. Marvell’s custom HBM aims to bypass memory vendors’ standard interfaces and seize AI accelerator definition rights, while Lightmatter’s photonic interconnects threaten copper’s dominance if scaled. Within 18 months, a triad of ‘Chiplet + Cooling + Photonics’ will define next-gen packaging—only top-tier players can absorb its yield and R&D risks.