Delft Circuits
Delft Circuits manufactures flexible cryogenic I/O systems using unique NbTi stripline technology, enabling efficient control of qubits with minimal signal loss and heat load. Their Cri/oFlex® solution addresses the need for scalable and reliable wiring in quantum setups, integrating essential components while reducing the complexity and cost of traditional microwave systems.
- Hardware
- Quantum Computing
Funding
Raised to date
$9MRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
across 2 rounds
DEU$6.8M · Series A
Announced Sep 2023
Disclosed cumulative: $9M
Founders
Product
Problem
Scaling quantum computing and cryogenic research is limited by the complexity, signal loss, and heat load associated with traditional cryogenic I/O systems. Existing microwave systems often involve bulky components and wiring that hinder efficient control of qubits and other cryogenic devices.
Solution
Delft Circuits provides flexible cryogenic I/O solutions based on NbTi stripline technology, enabling scalable and reliable wiring for quantum setups. Their Cri/oFlex® product line integrates essential components directly into the flex, minimizing signal loss and heat load while simplifying system design. These flexible superconducting cables and on-flex components facilitate efficient control of qubits and other cryogenic devices, offering customized solutions for various applications, including superconducting qubits, spin qubits, and photonics. Delft Circuits offers a range of services, from system engineering to on-site installation and maintenance, providing a full-cycle service to meet the evolving needs of the quantum industry.
Target Audience
Delft Circuits serves quantum engineers and researchers in academia, national labs, and industrial organizations who require advanced cryogenic I/O solutions for quantum computing, communication, and sensing applications.
Features
- Flexible NbTi stripline technology with low losses (1.5 dB/m at 6 GHz), a critical temperature of 9 Kelvin, and a critical current of 150 mA
- On-flex components, including IR filters, low pass filters, and attenuators (10 dB, 20 dB)
- Scalable design supporting up to 32 channels through a KF40 port with less than 10 nW of heat load per channel
- Customizable flux, drive, feed, pump, and output lines tailored to specific application requirements
- Integration experience with various cryostat platforms, including BlueFors, Leiden Cryogenics, and Maybell
- Options for superconducting flux lines for baseband transmission (DC to 2 GHz) and microwave drive lines with a cutoff at 8 GHz
- Full I/O assemblies with options for customized flux, drive, feed, pump, and output lines, supporting systems up to a thousand channels