SemiQon Cryo-CMOs

Scaling quantum systems with SemiQon Cryo-CMOS

The world’s first transistor fully optimized for cryogenic conditions. By integrating qubit control directly inside the cryostat we make quantum computers more scalable, efficient, and commercially viable.

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The Challenge

Breaking the bottlenecks in quantum hardware

Quantum computers are expanding, but to be commercially viable, they must become smaller, more efficient, and cost-effective. Today, control electronics remain one of the biggest bottlenecks limiting scalability and affordability.

Key challenges Cryo-CMOS addresses:

I/O limitations: Room-temperature electronics increase cost and complexity in quantum processor interfacing
High power use: Traditional control electronics consume too much power and generate heat
Lack of design kits: Cryogenic Silicon IC development lacks standardized toolkits
No integrated control solution: Until now, no practical approach existed for qubit control via cryogenic silicon ICs

The solution

Our breakthrough: Cryo-CMOS integrated with quantum processors

SemiQon’s ultra-low dissipation cryo-CMOS technology integrates qubit control directly inside the cryostat. This eliminates the need for bulky, power-hungry room-temperature electronics and significantly reduces the infrastructure burden, making quantum systems less complex and more efficient to operate.

Now available for early access.

Packaged chip / Chip / On-chip design

How are we different?

Built on silicon

Uses traditional CMOS (Si), avoiding exotic materials that require costly infrastructure.

Strategic partner, not just a supplier

We collaborate closely with early adopters and integrate feedback into new designs.

In-house manufacturing

Developed in a semiconductor pilot line, enabling speed and quality control.

THE BENEFITS

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Why choose SemiQon Cryo-CMOS

1000× lower power consumption than traditional control electronics
30% infrastructure cost reduction for quantum hardware manufacturers
Cryogenic-ready packaging for seamless cold integration
In-house manufacturing & fast iteration from pilot line to packaged device
Delivered lab-ready & engineered to work
World-first cryo-optimised CMOS transistor, delivering a clear first-mover advantage

Where Cryo-CMOS makes a difference

Quantum computer makers & system Integrators

Simplify cryogenic control. Scale systems with less wiring, less heat, and less infrastructure.

Space electronics

Power cold-environment electronics in compact, efficient form factors. Perfect for quantum sensing and instrumentation in orbit and beyond.

High-performance computing (HPC)

Advance low-temperature logic with ultra-efficient silicon components optimised for dense architectures.

Technical specs

Technology	Min. subthreshold swing  swing (mV/dec)	Subthreshold gain increase (RT/cryo)	ION increase (cryo/RT)	Δ V t h (mV)	Source
SemiQon	0.32	203 ×	10 ×	Tunable	N. Yurttagül et al. https://arxiv.org/abs/2410.01077 (2024)
14nm FinFET	15	5 x	6 x	80	A. Chabane et al., ESSCIRC 2021 – IEEE 47th European Solid State Circuits Conference (ESSCIRC), Grenoble, France, 2021, pp. 67-70. 10.1109/ESSCIRC53450.2021.9567802
28nm bulk CMOS	20	4 x	-	160	A. Beckers, et al., 47th European Solid-State Device Research Conference (ESSDERC), 2017. 10.1109/ESSDERC.2017.8066592
28nm FDSOI	5	14 x	7 x	Tunable	B. C. Paz et al., 2020 IEEE Symposium on VLSI Technology, Honolulu, HI, USA, 2020, pp. 1–2. 10.1109/VLSITechnology18217.2020.9265034
40nm bulk CMOS	28	3 x	3.5 x	120	R. M. Incandela et al., IEEE J. Electron Devices Soc., vol. 6, 2018. 10.1109/JEDS.2018.2821763
160nm bulk CMOS	23	4 x	3 x	150	R. M. Incandela et al., IEEE J. Electron Devices Soc., vol. 6, 2018. 10.1109/JEDS.2018.2821763
22nm FDX	14	5 x	6 x	Tunable	O. Seidel et al., Fermi laboratory report for DoE, OSTI ID: 2217187. https://www.osti.gov/servlets/purl/2217187/ (2023)