GRENOBLE, France and SAN FRANCISCO, Dec. 10, 2024 /PRNewswire/ -- Quobly, a leading French quantum computing startup, has reported that FD-SOI technology can serve as a scalable platform for commercial quantum computing, leveraging traditional semiconductor manufacturing fabs and CEA-Leti's R&D pilot line.
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The semiconductor industry has played a pivotal role in enabling classical computers to scale at cost; it has the same transformative potential for quantum computers, making them commercially scalable and cost competitive. Silicon spin qubits are excellent for achieving fault-tolerant, large-scale quantum computing, registering clock speeds in the µsec range, fidelity above 99% for one and two-qubit gate operations and incomparably small unit cell sizes (in the hundredths of 100nm²).
To capitalize on decades of semiconductor infrastructure investments, Quobly has adopted a fabless model. It focuses on FD-SOI, a commercially available CMOS technology manufactured by global leaders like STMicroelectronics, GlobalFoundries, and Samsung, as a platform for quantum computing.
Quobly's work, reported on December 9(th), 2024 at IEDM, addresses the critical challenges for scaling quantum systems. With CEA-Leti, CEA-IRIG and CNRS, Quobly has demonstrated the key building blocks for a quantum computer leveraging commercial FD-SOI:
-- Low-temperature operations and characterization of their digital and
analog performances, adhering to circuit design guidelines
-- Single qubit operations using hole and electron spin qubits using the
CEA-Leti's R&D pilot line. This ambipolar platform optimizes system
performance, leveraging electrons' long coherence times for memory, as
well as the holes' strong spin-orbit interaction for fast data
processing
-- Charge control in commercial GF 22FDX to further define a standard cell
for a two-qubit gate
Key achievements include:
-- Cryogenic Control Electronics: Voltage gain up to 75dB, noise levels of
10-11V²∙ m²/Hz, and threshold voltage variability of 1.29mV∙ m.
-- Ambipolar Spin Qubits: Co-integration of hole and electron qubits on
FD-SOI technology, achieving 1 s manipulation speed for holes and 40 s
coherence time (Hahn echo) for electrons.
-- Two-Qubit Gate Standard Cell: Demonstration of double quantum dot
operations with commercial FD-SOI.A Step Towards Commercial Quantum
Systems
This work positions FD-SOI as essential for scalable quantum processors and establishes Quobly as a leader in cost-efficient, fault-tolerant quantum computing. By co-integrating quantum and classical components on the same platform, Quobly is shaping scalable QSoC architectures.
About Quobly
Founded in 2022 in Grenoble, Quobly pioneers fault-tolerant quantum computing with semiconductor qubits. Combining cutting-edge research with industrial production, Quobly targets scalable systems with millions of qubits. The company raised EUR19 million in 2023, setting a European quantum sector record. Visit www.quobly.io [https://www.quobly.io/].
Contact: andrea.busch@quobly.io [mailto:andrea.busch@quobly.io]
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