SAN FRANCISCO, Feb. 18, 2025 — CEA-Leti, in its collaboration with Quobly, CEA-List and CEA-Irig, reported today it has developed a unique solution using FD-SOI CMOS technology that provides simultaneous microsecond readouts of tens of quantum devices, while reducing the readout power consumption by 10x and footprint by 2x. Combined with Quobly’s strategy to build qubits out of FD-SOI technology, this readout architecture provides a path to low power and scalable quantum integrated circuits.
In a paper presented at ISSCC 2025, “An 18.5μW/qubit Cryo-CMOS Charge-Readout IC Demonstrating QAM Multiplexing for Spin Qubits”, the innovation…