The rapid growth of AI has created a surge in the global energy consumption at a rate never seen before. Today, data centers account for approximately 415 terawatt-hours (TWh) of electricity globally. To put this into perspective, the annual energy consumption of the United Kingdom in 2023 measured at 309 TWh. The International Energy Agency (IEA) projects data centers’ energy consumption will more than double to nearly 945 TWh by 2030 [1]. A single generative AI query can consume up to ten times the power of a traditional search [1]. Meanwhile, data center energy usage in the U.S. is projected to leap from 4.4% to as much as 12% of the national grid by 2028 [2]. This creates a stark reality for the semiconductor industry. Traditional monolithic scaling has hit its physical and economic limits, leaving advanced packaging and heterogeneous integration to define the industry’s trajectory [3].
To meet these escalating compute demands, the industry is rapidly shifting toward multi-die architectures, chiplets, and 3D stacking to decrease the amount of energy needed for advanced computing. This transition is fueling explosive growth in the advanced packaging market, which the Yole Group projects will reach $79.4 billion by 2030 [4]. However, stacking chiplets to bypass Moore’s Law exposes massive systemic bottlenecks. Engineers are now fighting interconnect parasitics, navigating complex power delivery architectures, and battling extreme thermal density.
In a 3D-stacked architecture, pulling heat away from vertically integrated dies is one of the most pressing engineering challenges of our time. As compute density rises, issues like die warpage and localized thermal hotspots threaten both reliability and yield. The shift toward sustainable AI systems for energy-efficient computing requires breakthroughs in everything from hybrid bonding process flows to advanced thermal interface material (TIM) strategies and liquid cooling integration [6].
These are not challenges that any single company can solve in isolation. Whether you are a foundry, OSAT, material supplier, or equipment provider, overcoming these bottlenecks requires pre-competitive, industry-wide collaboration. Foundational capabilities must be built collectively before competitive differentiation occurs.
This is the core mission of the SEMI Advanced Packaging and Heterogeneous Integration (APHI) Technology Coalition. By collaborating on common standards, shared research frameworks, cross-vendor interoperability models, and collective technology roadmap congruency, APHI is actively dismantling the barriers to next-generation computing.
The APHI community is already tackling these issues head-on. Monthly chapter meetings identify and address these and other issues facing heterogeneous integration. The most recent chapter meetings showcased in depth review of these challenges. Jonathan Abdilla from BESI detailed the technical challenges and collaborative research required for global hybrid bonding process flows. Similarly, Dr. Jie Geng from Indium Corporation led a deep dive into crucial TIM strategies for AI and HPC, exploring hybrid stacking evaluation methods and liquid cooling options to combat GPU die warpage.
The future of advanced manufacturing will be defined by how effectively we manage power and heat in heterogeneous systems. We invite you to join this critical conversation at the upcoming SEMIEXPO Heartland (April 29-30 in Detroit, MI) Day 2 will feature dedicated sessions on Thermal Management & Power Delivery in Advanced Packaging: From TIMs to Warpage Control, as well as strategies for securing the advanced packaging supply chain.
To help shape the standards and shared roadmaps that will power the AI revolution, explore our initiatives and get involved with SEMI Advanced Packaging and Heterogeneous Integration (APHI) Technology Coalition.
Rafael Tudela is Senior Technical Marketing Manager at SEMI
