Shifting HBM4 Controller Functions Closer To Memory (UC Riverside)

The shift of HBM4 controller logic to the Base Die marks a critical inflection point where memory and compute boundaries dissolve. This is not merely an architectural tweak but a strategic pivot forcing Samsung and SK Hynix to transition from stacking races to system-level integration. By leveraging logic processes for the base die, memory makers must now master complex logic design, directly challenging TSMC's dominance in advanced packaging and reshaping supply chain leverage. For GPU giants like NVIDIA, while host-side complexity decreases, technical dependency on specific memory vendors intensifies. We anticipate a bidirectional penetration of 'memory logicization' and 'logic memoryization' within 18 months. The competitive moat will shift from pure process node leadership to architectural definition rights. Firms failing to pre-position in base-die logic design risk marginalization in the HBM4 era, driving further industry consolidation and elevating the strategic value of integrated memory solutions.