IBM debuts sub-1 nanometer chip technology
IBM Unveils Pioneering Sub-1nm Semiconductor Technology
YORKTOWN HEIGHTS, NY — June 25, 2026 — IBM (NYSE: IBM) has announced a paradigm shift in semiconductor engineering with the debut of the world's first chip technology that breaks the 1-nanometer barrier. This breakthrough centers on a new transistor architecture operating at the 0.7 nm node, also known as the 7 angstrom () scale.
As the industry struggles against the physical constraints of traditional scaling, this milestone ensures that the evolution of computing power can continue. Semiconductors are the backbone of modern civilization, powering everything from basic household appliances advanced communication networks, transportation, and critical global infrastructure.
The Leap to "Nanostack" Architecture
The core of this innovation is the nanostack, a revolutionary 3D chip design. While previous iterations focused on 2D layouts, the nanostack allows IBM to pack nearly 100 billion transistors onto a surface the size of a fingernail.
Performance Comparison: 2nm vs. 0.7nm
The following table illustrates the projected gains over IBM's previous 2nm milestone:
| Metric | 2nm Node (2021) | 0.7nm Node (2026) | Improvement |
|---|---|---|---|
| Transistor Density | Baseline | Density | Billion total |
| Compute Performance | Baseline | Significant Leap | |
| Energy Efficiency | Baseline | Major Reduction in Power |
"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," stated Jay Gambetta, IBM Fellow and Director of IBM Research.
Technical Deep Dive: How Nanostack Works
The nanostack is the first known 3D, nanosheet-based design. Unlike standard nanosheet technology, it utilizes 3D sequential integration to vertically stack and stagger transistors. This allows for:
- Increased Density: More components in the same horizontal footprint.
- Material Optimization: The ability to use different material combinations in each layer to tune performance and power independently.
Architectural Evolution
Validation Milestones
IBM has experimentally confirmed the viability of this technology through the following:
- Implementation of ultra-thin dielectric bonding in
CMOSintegration. - Successful demonstration of dual-channel engineering.
- Functional
CMOSinverter operation with predicted switching speeds.
Furthermore, research presented at VLSI 2026 indicates that nanostack provides 40% scaling in SRAM, which is vital for the high-bandwidth requirements of modern generative AI and cloud workloads.
The Path to the Angstrom Era
We are moving away from the nanometer era and entering the angstrom era, where chip dimensions approach the size of individual atoms. While "nodes" are now more of a marketing generation than a literal measurement, the technology proves that scaling is still viable.
Manufacturing and Ecosystem
IBM's roadmap suggests that this scaling trajectory will last for at least another decade. Much of this work occurs at the research facility in Albany, New York, which is integrating a High Numerical Aperture Extreme Ultraviolet (High NA EUV) lithography tool from ASML.
Key Industry Partners:
- ASML: Providing the High NA EUV tools for ultra-precise printing.
- Lam Research (LRCX)
- Tokyo Electron (TEL)
- SCREEN Semiconductor Solutions, Ltd.
Future Outlook: Quantum and Production
IBM is not only focusing on silicon but also on the quantum frontier. The company recently announced Anderon, a standalone "pure-play" quantum foundry designed to secure U.S. leadership in the manufacture of quantum wafers.
{
"technology": "Nanostack",
"node": "0.7nm / 7A",
"estimated_production": "Within 5 years",
"primary_use_cases": ["Generative AI", "Cloud Infrastructure", "Next-Gen Electronics"]
}
About IBM IBM is a global leader in AI, hybrid cloud, and consulting. Operating in over 175 countries, IBM helps thousands of corporate and government entities optimize their data and maintain a competitive edge in critical infrastructure sectors, including financial services.