IBM Unveils World's First Sub-1 Nanometer Chip Technology

ARMONK, N.Y. — June 25, 2026 — In a historic leap for semiconductor engineering, IBM has officially announced the development of the world's first sub-1 nanometer (nm) chip technology. Shrinking transistors to a mere 0.7 nanometers—or 7 angstroms—this breakthrough pushes beyond the physical limits of traditional scaling and introduces the tech industry to the "Angstrom era" of computing.

The "Nanostack" Architecture

At the core of this milestone is an entirely new 3D transistor design known as nanostack. Unlike traditional two-dimensional scaling, nanostack takes a vertical approach—described by industry experts as building a "block of flats" for transistors.

This 3D, nanosheet-based design vertically stacks and staggers the transistors. This unique integration allows IBM to pack an astonishing 100 billion transistors onto a silicon chip no larger than a fingernail.

"With our new nanostack architecture, we're not just making smaller transistors, we're reinventing how chips are built to deliver dramatically more power and energy efficiency." — Jay Gambetta, Director of IBM Research and IBM Fellow.

Unprecedented Performance and Efficiency

The new 0.7nm prototype delivers massive improvements over IBM's previous 2nm node (unveiled in 2021). Based on initial testing, the nanostack chips are projected to achieve:

• Up to 50% greater performance at the same power level.
• Up to 70% more energy efficiency at the same performance level.
• A 40% increase in SRAM capacity, which is highly critical for demanding, memory-heavy computing.

Powering the Future of Technology

While widespread commercial production of sub-1nm chips is still several years away, this foundational architecture ensures that transistor innovation will survive well into the next decade. This massive leap in computing density and efficiency will directly accelerate advancements across major tech sectors:

• Generative AI and Machine Learning: Handling dramatically larger AI models with significantly lower power consumption.
• Cloud Infrastructure: Slashing data center energy costs while massively boosting data throughput.
• Next-Generation Electronics: Enabling smarter, highly autonomous edge devices that require far less frequent charging.

By cementing a viable path past the 1nm barrier, IBM has secured the roadmap for the next evolution of modern computing.

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Sources referenced for this article:

• IBM Newsroom Announcement
• IBM Research Blog
• BBC News Coverage