HY-Knowledge, an original series by SK hynix, explores the latest technologies shaping the AI era and the role of memory in making them possible. In the third episode, Professor Cho Kyu-jin of Seoul National University explores the world of Physical
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▲ Conceptual illustration of an optics-centric architecture in which a photonic interposer directly connects compute resources in the XPU pool with memory resources in the memory pool through optical links
▲ CPO integrates optical engines ever closer to the processor. As the distance traveled by electrical signals is minimized, both bandwidth and energy efficiency improve.
▲ Compute throughput has typically tripled every two years, while interconnect bandwidth has advanced only about 1.4-fold, creating a “bandwidth wall.”
▪ SK hynix has collaborated with leading global researchers to publish a roadmap for co-packaged optics (CPO), a key technology for next-generation AI infrastructure, in the prestigious scientific journal “Nature Electronics.” ▪ Extending beyond HBM innovation, the paper presents a
▪ Board approves resolution on August 19 to repurchase and fully cancel 40 trillion won of treasury shares ▪ Decision reflects the view that intrinsic value—driven by business competitiveness and cash generation capability—is underrepresented in current share price ▪ Largest
As AI workloads evolve toward inference and agentic AI, the criteria for system performance are also changing. Computing power alone is no longer enough. Where data is stored, how quickly it moves, and how efficiently it is processed now have
SK hynix reaffirmed its leadership in AI memory by reporting record quarterly revenue and operating profit in the second quarter, while surpassing KRW 100 trillion in cumulative first-half revenue for the first time in its history. Amid these strong results,
AI is no longer defined by a single model or chip. For AI to operate effectively in real-world services and industrial applications, it takes faster compute, greater memory bandwidth, higher-performance networking, more efficient storage, and stable power and cooling working