SK hynix denies weighing Intel for HBM4E base dies — without saying which part is wrong

Herald Economy reported on 31 August 2026 that SK hynix is weighing Intel as a second source for the base dies that sit beneath its HBM4E memory stacks — logic dies that are currently fabricated entirely by TSMC. SK hynix responded that it is not currently considering Intel Foundry for HBM4E production, saying parts of the report are inaccurate. The company did not identify which parts.

Why it matters

Both halves of this belong in the record, and the tracker gets nothing from either. What the story is actually about is a dependency: the base die under an HBM stack is a logic part, not memory, so the memory makers have to buy it from a foundry, and for HBM4-generation parts that foundry is TSMC. A second source would be the first crack in a single point of failure that sits underneath most of the AI accelerator market.

The denial is worth reading carefully rather than as a full stop. "Not currently considering" is a statement about the present tense of one specific product, and calling a report partly inaccurate without saying which part leaves the load-bearing claim untouched. That is not evidence the report is right — Herald Economy's account is single-sourced and unconfirmed — but it is a reason not to file the story as refuted. Supplier-diversification talks are exactly the kind of thing a company denies truthfully at one stage and announces at another.

The tracker records qualified foundry relationships, not reported ones. Nothing here changes what Intel Foundry has actually won.

What to watch

Whether Intel or SK hynix confirms any HBM base-die qualification work, whether the denial is repeated in a filing or an earnings call where its wording carries more weight, and whether any memory maker publicly second-sources away from TSMC for base dies.