Events for May 19, 2026

[] (We anticipate closing registration in late April due to limited facility space; we apologize in advance if we cannot register you.) The 2026 Build-up Substrate Symposium (BUSS) convenes global leaders in semiconductor packaging, substrate technology, and AI-driven systems. Under the theme “Next-Gen Substrates: Accelerating Innovation in the AI Era,” the symposium explores how advanced substrates are enabling transformative breakthroughs in chiplet integration, heterogeneous systems, and Co-Packaged Optics (CPO). As AI, HPC, and edge computing drive unprecedented performance demands, next-generation substrates are emerging as the foundation for scalable, high-performance, and energy-efficient solutions. Chiplets and CPO are rapidly gaining traction as a critical enabler of high-bandwidth, low-latency interconnects, further elevating the role of substrates in next-gen architectures. BUSS 2026 showcases innovation across the entire ecosystem—from materials to manufacturing and integration —- highlighting how substrate advancements are powering the future of semiconductor technologies, including the convergence of optics and electronics. SEMI World Headquarters, Milpitas, California, United States

We are living in the era of heterogeneous integration driven by fast, efficient and big data computing resources at our fingertips. The mega-monolithic silicon chip is a thing of the past, replaced with 3D heterogeneous integration of chiplets onto a platform made of an organic build-up substrate. Volume manufacturers of build-up substrates are entirely based in Asia, leaving a desert in the US. Volume build-up substrates used by major IDMs are manufactured in Asian countries including Taiwan, Japan and China. However, there are multiple activities starting up in the US, and this is why a gathering of the US players is important. This symposium is geared for all those involved in the supply chain of build-up substrates in the US, as well as users. As the US Congress debates H.R. 3249, the Protecting Circuit Boards and Substrates (PCBS) Act, this Symposium is an opportunity for all build-up substrate players to meet, network and cohesively work with funding agencies who will be invited to this symposium to focus on onshoring build-up substrate production and utilization. ***CANCELED*** location to be announced, Milpitas, California, United States, Virtual: https://events.vtools.ieee.org/m/544352