SK Hynix is redesigning how memory chips are built, and the shift could mean more business for TSMC — good news for Taiwan's chip industry, though nothing is confirmed yet.

• SK Hynix wants to split DRAM into two parts: the memory cells that store data, and the surrounding circuits that move data in and out.
• The circuits part would be made using advanced logic chip processes — the kind TSMC specializes in — then stacked on top of the memory layers.
• The two companies already work together on HBM4, the newest high-bandwidth memory used in AI chips, where TSMC makes the base layer.
• AI accelerators now need data moved faster and with less power, not just more storage, which is pushing memory makers toward logic manufacturing.
• Korean analysts say it is still unlikely SK Hynix hands the logic work to an outside foundry — unless it falls behind rivals and needs to catch up fast.

Outlook: Expect SK Hynix to keep its options open, with any bigger TSMC deal depending on how quickly its own in-house development moves.