Shifting HBM4 Controller Functions Closer To Memory (UC Riverside)

Tharunya Yogananda and Wantong Li of the University of California, Riverside published a technical paper titled “Beyond Host-Side Control: HBM Controller Partitioning Across Host and HBM Base Dies.”

Abstract Excerpt:

“Recent generations of high bandwidth memory (HBM), such as HBM4, allow the base die of the memory stack to be manufactured using a logic process that can accommodate more complex controller functions next to the DRAM. We present the first systematic quantitative study of function-level controller placement between the host and the HBM4 base die on a silicon interposer. We divide the controller into its main functions and evaluate four placements, from a complete host controller to a complete base die controller, with intermediate placements that move maintenance or scheduling to the base die. “

Find the technical paper here. November 2026.

Yogananda, Tharunya, and Wantong Li. “Beyond Host-Side Control: HBM Controller Partitioning Across Host and HBM Base Dies.” arXiv:2611.10930, November 2026. License.

 

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