Our Core Technologies
Cryo-ASICs
Our experience in cryogenic circuit design offers solutions across a wide range of low power integrated circuits.
Control Platforms
We create full systems capable of readout and control of on-chip quantum devices from inside the cryogenic refrigeration system.
Sub-Systems
Our expertise in cryogenic electronics allows us to offer individual in-cryostat electronic subsystems to speed up your applications.
Cryo-ASIC Design

Cryo-optimised analogue & digital design
We design both analogue and mixed-signal ASICs using CMOS process nodes, tailored, characterised and validated for operation down to mK temperatures. Our designs achieve ultra-low power dissipation- essential when every milliwatt of heat load matters inside your cooling system.
Standard CMOS, deliberately
We build on commercially available CMOS foundry processes rather than exotic technologies. This gives you supply chain stability, multi-source availability, and a well-understood reliability track record- critical for long-lived quantum computing deployments.
Cryogenic packaging
Die packaging is often an afterthought- not with us. We select and validate packaging materials and interfaces for mechanical and thermal performance at cryogenic temperatures, ensuring robust electrical connections and long operational lifetimes in extreme environments.
Fully customised to your stack
Every quantum hardware architecture is different. We work closely with your team to understand your qubit platform, control topology, and system-level constraints- then design an ASIC that fits precisely into your cryostat.
Quantum Control Platform
Kelvin Quantum develops in-cryostat electronic systems to control and readout quantum technologies with RF and DC signals.
Full systems backed by FPGA Â processing power, high frequency PCBs, peripheral electronics and packaging all capable of integration within commercial cryogenic refrigeration systems.
Capabilities
RF capability DC-20GHz, Reprogrammable FPGA based system, Operation Temperature: Room temperature to milliKelvin, Real time reconfiguration, Packaging designed for EMC and optimised for heat transfer.
Customisation:
Technology is complex, refrigerators are bespoke and cooling power varies. Get in touch to talk about tailored solutions for your system and application.


Cryogenic Sub-Systems
We develop cryogenic semiconductor-based electronic sub-systems, enabling in-cryostat integration of quantum control and readout operations. Our technology provides a clear path toward scalable quantum systems, delivering faster, more accurate, and higher-density operation and benchmarking at cryogenic temperatures.
Multiplex
DC and RF capabilities spanning out to hundreds of outputs.
Power Supplies
In-cryostat reconfigurable voltage and current supplies.
Signal generation and manipulation
Signal components including: Digital to Analogue converters, Analogue to Digital converters, RF synthesisers and Mixers.
FPGA
FPGA based microcontrollers for bespoke operation, experimentation and characterisation at cryogenic temperatures.
Customisation
FPGA based microcontrollers for bespoke operation, experimentation and characterisation at cryogenic temperatures.
HOW WE WORK
From first conversation to cryostat integration
1.
Technical Consultation
We map your system requirements: qubit count, gate fidelity targets, power budget, operating temperature stage.
2.
Architecture & schematic design​
We propose a circuit architecture and walk you through the trade-offs before a single transistor is laid out.
3.
Layout & tape-out
Full custom ASIC layout, DRC/LVS clean, submitted to foundry.
4.
Cryo bring-up & characterisation
We test and validate performance at temperature in our own cryogenic test infrastructure.
5.
Integration support
We support you through system integration into your cryostat.


