- IMEC’s breakthrough solves one of the biggest problems in quantum computing: scalability
- The approach leverages existing cutting-edge lithography used for classic computer chips.
- The research center hopes to recreate this with potentially millions of qubits on a single chip.
Today, investors and professionals around the world are obsessed with the extent to which the capabilities of modern AI systems will evolve over time, as tasks become increasingly complex even as agent AI grows significantly faster, learning from a combination of user feedback, training data, and broader context windows.
Many of these computing advances are made possible by Nvidia’s AI chips and CUDA software stack, recognized as the industry’s gold standard. The same manufacturing process (high NA EUV lithography) that makes them viable has been leveraged by semiconductor research center IMEC to build what could be the world’s first scalable quantum dot qubit device.
IMEC has now reported the successful fabrication of a functional network of qubits with separations of just 6 nanometers, a crucial advance given that the coupling strength between neighboring quantum dots increases exponentially with decreasing distance, which otherwise makes this a challenging feat.
An important advance for the scaling of quantum computing
These exciting advances could be a springboard for an industry often plagued by scalability issues, even as they demonstrate compatibility with existing CMOS (Complementary Metal Oxide Semiconductor) technology that powers modern silicon chips.
“High NA EUV enables precise modeling of silicon quantum dot qubits,” said IMEC Quantum Computing program director Kristiaan De Greve.
“As the coupling strength between neighboring quantum dots increases exponentially with the gap between them, we need to reliably model gaps of a few nanometers between the control electrodes of the quantum dots. This is a true engineering feat, thanks to our integration and modeling teams and ASML’s exceptional high NA EUV technology.”
While considerable research and development is still needed to scale this and, perhaps one day, have commercially viable quantum computers that work in sync with classical computer chips on the same chip, this is an important proof of concept showing that it is possible.
Quantum computing, however, has its own challenges, and while the underlying technology at play here, leveraging Silicon Spin Qubits, has its advantages, it also tends to be demanding in its implementation. It requires extreme cooling, is sensitive to material defects, and is prone to failure when modern error correction thresholds are reached, as previously noted by IMEC.
The development has industry players excited about the prospect of future chips that could incorporate millions of qubits on a single chip, and Sofie Beyne, project leader and quantum integration engineer at IMEC, sums it up best:
“We can leverage decades of semiconductor innovation and repurpose the entire silicon scaling ecosystem, moving quantum devices beyond laboratory experiments to large-scale, fabricatable systems. This is where silicon-based qubits have a clear advantage.”
Follow TechRadar on Google News and add us as a preferred source to receive news, reviews and opinions from our experts in your feeds.
