IBM has unveiled a blueprint for sub-1-nanometer chip technology, utilizing a 3D "nanostack" architecture to significantly increase transistor density and improve overall processing performance and energy efficiency.

Key Points

• IBM’s new process node fits nearly 100 billion transistors onto a fingernail-sized chip, doubling the density of its 2021 2-nm technology.
• The architecture uses a 3D "nanostack" design, stacking nanosheet elements composed of just 15 rows of silicon atoms.
• Performance gains include up to 50% higher processing speeds and 70% greater energy efficiency compared to previous 2-nm chips.
• Commercial production of these sub-1-nm chips is estimated to be at least five years away due to complex manufacturing and lithography requirements.
• Manufacturing partner Rapidus is currently working toward 2-nm production, while TSMC has already begun volume manufacturing for 2-nm chips.

Why it Matters

This advancement represents a critical step in overcoming physical limitations as traditional transistor scaling reaches its threshold. By enabling higher performance and efficiency, this technology will eventually power more capable generative AI, cloud infrastructure, and next-generation consumer electronics.