SK Hynix Named Top TSMC Partner for HBM5 Development
The companies have deepened their collaboration on advanced chip packaging to accelerate the next generation of AI memory.
Updated on Sept. 28, 2026 in Semiconductors
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TSMC has awarded SK Hynix its Partner of the Year title for the second consecutive year in the 3DFabric-HBM Integration category. This recognition highlights their ongoing work in validating the 8th-generation HBM5 memory for high-performance AI accelerators.
Why it matters
As memory demand scales, packaging technology has become the primary bottleneck for data processing speeds in AI systems. Integrating increasingly dense memory stacks requires tighter cohesion between silicon designers and advanced packaging manufacturers.
The partnership focuses on CoWoS (Chip-on-Wafer-on-Substrate) advanced packaging, which connects multiple semiconductors on a single substrate. HBM5, the newest standard in development, represents a leap of three generations beyond the current HBM3E memory.
The players
TSMC
The world's largest dedicated independent semiconductor foundry, known for its advanced process nodes and packaging technology.
SK Hynix
A leading semiconductor supplier focused on high-bandwidth memory (HBM), flash storage, and system-on-chip solutions.
The details
The integration process relies on chiplet technology, which divides large, complex processors into smaller, specialized functional units connected within a single package. By utilizing TSMC’s CoWoS packaging, engineers can confirm that memory throughput remains stable even as the physical density of the HBM stacks increases. At the recent conference, SK Hynix also showcased a 36GB 12-layer HBM4 and a 96GB SOCAMM2, demonstrating the capacity improvements possible through these refined architectural methods.
Timeline
Q2 2026: SK Hynix began shipping 6th-generation HBM4.
September 23, 2026: TSMC held its Open Innovation Platform Conference in Santa Clara.
2030: Industry analysts project the PCIe-based eSSD market to reach 1,933 exabytes.
The Tech Race
The transition to HBM5 places SK Hynix and TSMC at the forefront of a race to minimize latency in AI-dedicated hardware. This partnership directly challenges competitor memory and foundry pairings as they strive to pack higher capacities like 36GB HBM4 modules into increasingly constrained AI packages.
While these technologies are currently focused on enterprise AI hardware, they signal the trajectory for future high-performance server memory architectures. Professionals in data-intensive fields can expect these memory capacities to filter into commercial infrastructure as the 2030 storage benchmarks approach.
The takeaway
This partnership confirms that architectural synergy between memory design and packaging will define the next generation of AI performance. Watch for future performance benchmarks of 12-layer HBM4 and SOCAMM2 modules as they move toward broader industry adoption.
Further reading
For more on how manufacturing processes are shaping modern hardware, read the latest analysis in Semiconductors.
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