IBM Debuts World's First Sub-1 Nanometer Chip Technology
IBM, Thursday, June 25th, 2026
IBM unveiled the world's first sub-1-nanometer chip, a 0.7nm 'nanostack' design promising major AI performance gains.
On June 25, 2026, IBM debuted what it calls the world's first sub-1-nanometer chip technology at the 0.7nm (7-angstrom) node.
The 'nanostack' approach stacks transistors vertically via 3D sequential integration, packing nearly 100 billion transistors onto a fingernail-sized chip, about twice the density of IBM's 2nm chip.
IBM projects up to 50% higher performance or 70% greater efficiency versus 2nm, and estimates AI accelerators could reach roughly 7,000 TOPS, potentially cutting frontier-model training from months to weeks. Presented at VLSI 2026, the work is a research demonstration rather than a commercial product.