IBM Creates World's First Chip Technology Below 1 Nanometre

IBM has announced what it describes as a historic milestone in semiconductor engineering: the development of the world's first known chip technology built at a scale smaller than 1 nanometre. The company calls the design a block-of-flats architecture — a three-dimensional approach to packing transistors that breaks through what many engineers had considered a fundamental physical barrier.

What the Breakthrough Means

For decades, the semiconductor industry has advanced by making transistors smaller — shrinking them from micrometres to nanometres — allowing more computing power to be packed into the same physical space. The current state of the art in commercial chip production sits at around 2 nanometres. IBM's sub-1nm work pushes beyond that threshold into territory that physicists had flagged as deeply challenging due to quantum effects at such tiny scales.

Three-Dimensional Architecture

IBM's engineers used a stacking design — likened to building upward like a block of flats rather than spreading outward — to achieve the density needed for sub-nanometre transistor placement. This three-dimensional approach has been gaining traction across the industry as a way to continue improving performance without hitting the limits of two-dimensional miniaturisation.

When Could It Reach the Market?

IBM was careful to note that the technology remains in a research phase and will not be production-ready for some time. Bringing a new chip architecture from the lab to mass manufacturing involves years of engineering work, yield optimisation and massive capital investment. However, announcements of this type typically signal that a technology will reach commercial maturity within a decade.

Strategic Significance

The announcement comes as the United States and its allies have been aggressively investing in domestic semiconductor capacity and restricting exports of advanced chip technology to China. A demonstrated capability to move below 1nm reinforces the West's technological edge in chip design at a moment of intense geopolitical competition over semiconductor supremacy.