Weekly recap cover, week ending September 11, 2026An HBM stack of DRAM dies on a base die, joined by through-silicon vias, the lead topic of the week ending September 11, 2026; below it, one drawing for each topic the week covered: DRAM and HBM (2), SSDs and storage systems (1), Controllers and interfaces (1), Market and earnings (1), Research papers (4), New on Eyes on Flash (3).THE WEEK IN MEMORY AND STORAGEWEEK ENDINGSeptember 112026LEAD · DRAM AND HBM211143

Week endingFriday, September 11, 2026Covers September 5 to September 11, 2026 · 12 items

CXMT Ships LPDDR6, SK hynix Charts Its Memory Path, and HBF Research Piles Up

CXMT published details of its LPDDR6 in mass production, the first appearance of the new low power DRAM standard in a flagship phone. SK hynix used its internal Future Forum to describe a stack of memory tiers, from 3D DRAM and HBM to high bandwidth flash, matched to each AI workload.

Phison reported controller demand tied to AI storage, Marvell lined up its PCIe 6.0 SSD controller and CXL memory products for an infrastructure show, and Kioxia took its gaming SSDs to Tokyo Game Show. Papers this week looked at high bandwidth flash, SSD firmware verification and HBM error correction, and Eyes on Flash refreshed two Flash Foundations parts and the Atlas.

Top stories

The rest of the week

DRAM and HBM

Market and earnings

Research papers

  1. CertiFlash proves flash translation layers safe with a machine checked framework (opens in a new tab)

    Researchers built a formal verification framework in the Rocq proof assistant for SSD firmware that checks isolation, integrity and ownership, not just correct behavior. They show it on four FTL designs and release it as open source. It is a preprint.

    arXiv ·

  2. HBFSim models high bandwidth flash while a real GPU runs the model (opens in a new tab)

    The authors present an open source simulator that injects high bandwidth flash timing and heat behavior into a real LLM run on a GPU, so designers can study HBM plus flash systems before hardware exists. It is a preprint.

    arXiv ·

  3. REACH proposes long span error correction in the HBM controller (opens in a new tab)

    A controller design uses established inner codes plus a long outer code for rare repairs, aiming to protect HBM during AI inference at lower area and power than a direct long code. Results come from simulation and synthesis, and the work is a preprint.

    arXiv ·

  4. Paper tests write aware caching so high bandwidth flash lasts in recommendation serving (opens in a new tab)

    The authors model KV cache reuse for recommendation systems on high bandwidth flash and show that filtering low reuse users before admission cuts writes and stretches flash lifetime. It is an analytical model in a short preprint.

    arXiv ·

New on Eyes on Flash