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.
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.
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) |
Get a printable version of SemiQon Cryo-CMOS brochure.
Seeking deeper technical insight into our cryogenic transistor design?
Read the full research paper Millikelvin Si-MOSFETs for Quantum Electronics.
Why work with SemiQon
First-mover advantage
SemiQon has developed the world’s first CMOS transistor fully optimized for cryogenic operation
Built on silicon
Uses traditional CMOS (Si), avoiding exotic materials that require costly infrastructure
In-house manufacturing
Chips are developed in a semiconductor pilot line, enabling speed and quality control
Cryogenic packaging expertise
Our packaging is tailored for cryogenic performance and ready for immediate deployment
Strategic partner, not just a supplier
We collaborate closely with early adopters and integrate feedback into new designs
Commercial inquiries and partnerships
Yukihisa Tsuruta
Business Development Director
Featured News & Insights
SemiQon explores space applications with support from the European Space Agency
SemiQon’s cryogenic chip technology for quantum computing and space applications receives award from EARTO
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