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Only available NbTi flex in the world
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Low pass filter at 1 GHz
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Integrated IR (infrared) filter
Inline attenuation of 20 dB
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Contact resistance of 10 mΩ
General Specifications
Specification
Required Length For 180° Longitudinal Rotation
10 mm
Operating Temperature
0 K to 400 K (gradient)
Applications
Qubit flux for superconducting qubits or similar
Number Of Channels
8
Storage Temperature
0 K to 320 K
Transmission Type
Stripline
Connector Type
SMA female / SMP
Primary Flex Materials
Polyimide, Silver
Minimum Bending Radius
5 mm
Vacuum Feedthrough Connection
KF25/40, ISO 100 side and top loader ports
Vacuum Feedthrough Leak Rate
< 10-9 mbar L/s
Cable Overview
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Want To Know More
Used To
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Tune the energy gap between computational states
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Tunable couplers
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Apply general Baseband pulses or signals
Optimised For
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Low frequency bias signals
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Minimising active & passive thermal load
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Lossless DC bias current
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Ultra low noise
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Key Features
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8 Channels per flex
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1 GHz low-pass filter
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20 dB distributed attenuation
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NbTi Superconducting lines
Robust Cryo Interface
Coaxial SMA/SMP connector blocks provide a stable, repeatable connection between the control stack at room temperature and the device environment at the mK stage.
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Fridge-Compatible Feedthroughs
Multi-flex vacuum feedthroughs are designed for practical lab use, enabling clean routing and fast deployment across a wide range of dilution refrigerator configurations.
100%
100%
100%
Signal Integrity
Noise Rejection
Thermal Efficiency
About the Cryogenic Interconnect
Low-Noise RF Interfacing for
Modern Cryogenic Systems
The product is built with coaxial SMA/SMP connector blocks to interface cleanly between room-temperature electronics and the chipholder at the mK stage. Its vacuum feedthroughs are engineered to carry multiple flexes and remain compatible with most refrigerator (fridge) types, simplifying integration while maintaining signal integrity.
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Integrated Flux-Bias Filtering
The passive heatload is 600 pW per channel at 10 mK, enabled by the superconducting material used.
What We Do
Precision Cryogenic RF Filtering
for Flux-Bias Control
We build cryogenic interconnect and filtering chains that link room-temperature electronics to the mK stage, reducing high-frequency noise and radiation while preserving fast flux-bias rise times.
Microwave Response
A flux line I/O chain allows base-band (0-2 GHz) access to your circuit, typically terminated by an inductive component on your chip like a flux loop. With a DC bias current one tunes the frequency of the qubit or the magnitude of the coupler. In time domain one can tune this in nanosecond timescale.
The Cri/oFlex® flux line is configured completely for this task. With a low pass filter at 1 GHz, a 20 dB attenuator, and a strong IR-filter, this setup allows you to control your qubit without opening unwanted noise channels.
Cross Talk
Cross talk is what we experience daily. Whether it is picking up unwanted conversations in the train, or a phone connection suffering from interference.
Cri/oFlex® has been designed such that each qubit is addressed individually.
System integration
Integration
There is a wide variety of cooling solutions for quantum computing and low temperature experiments, ranging from lab size dilution refrigerators to small 4K table-top systems. As an i/o provider, it is our task to connect quantum devices and cold experiments to the control electronics regardless of the cooling implementation. To that end we have developed standardized solutions that fit (or can be made to fit) all fridges.
Whether you are purchasing a new system or want to refurbish your current system, Cri/oFlex® provides a solution.
Wiring Ports
Have a spare port in your fridge and want to add extra lines or replace an existing wiring port with a higher density cabling solution?We supply vacuum feedthroughs, Thermal clamps, Brackets and Cri/oFlex® laminates for all standard ports you will find in dilution refridgerators.
Out of the box solution
Fits for all standard ports
Upgrade existing systems
Loaders
Delft Circuits can supply fully pre-assembled loaders with Cri/oFlex cabling inside.We supply top- and sideloaders for all common brands such as Bluefors, Oxford and Leiden Cryogenics.
The advantages of pre-assambled loaders:
Plug and play cabling solution
More channels in a loader
Engineered for your application
Turn-Key
Have a spare port in your fridge and want to add extra lines or replace an existing wiring port with a higher density cabling solution?We supply vacuum feedthroughs, Thermal clamps, Brackets and Cri/oFlex® laminates for all standard ports you will find in dilution refridgerators.
Full-service provider
Full fletched solutions
Innovative design
Dive Deeper Into Cri/oFlex Technology
Nano Vacuum delivers world-leading vacuum, micro and nano-fabrication, and quantum-cryogenic solutions for researchers and innovators across Australia and New Zealand.
Copyright © NanoVacuum 2025. All rights reserved.
Phone
1800 560 820
Location
6 / 7 Salisbury Road, Castle Hill, NSW. 2154
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