Quantum Foundry Services

Con-Science offers a broad range of nanofabrication services. Most of our products are developed specifically for our clients. Here in our web-shop we have collected examples of some of our more standard products.

For a free inquiry related to any of our services or products, please contact us by email or telephone.

T: +46 (0)738 92 08 67
E: info@con-science.se

We specialize in the fabrication of superconducting quantum devices tailored to client-specific designs, achieving world-class coherence. Leveraging our expertise in Al/AlOx/Al Josephson junction (JJ) fabrication—an essential component of superconducting circuits for quantum computing—we ensure high parameter precision and exceptional yield. This capability is demonstrated by our proprietary line of superconducting qubit devices, featuring aluminium-on-silicon transmon qubits designed for concept validation, microwave equipment testing, and cryogenic environment evaluation (Qubit-in-a-Box).

Additionally, access to a state-of-the-art class 100 cleanroom enables us to offer a wide range of materials to choose from. Our qubit manufacturing experience extends beyond the planar transmon fabrication; we can deliver different qubit architectures such as fluxonium qubits, alternative junction types including Manhattan-style or Dolan bridges, and complex structures for device integration.

Contact us to learn how we can help support your research!

Link to product brochure for our foundry services Download

Highlights:

• High-performance qubits (T1 up to 256 μs with an average of > 145 μs, and Q > 2M)
• ±10% Josephson junction (JJ) size precision with > 90% yield over a 4-inch wafer
• JJ resistance ranging from 1 kOhm - 40 kOhm
• Complex structures such as air-bridges, under bump metallization (UBM), etc., for planar and 3D-integrated quantum chips.

Selected Publications by our team members:

1. Janka Biznárová, et al. Mitigation of interfacial dielectric loss in aluminum-on-silicon superconducting qubits. npj Quantum Inf 10, 78 (2024).
2. Janka Biznárová, et al. Intermodulation spectroscopy and the nonlinear response of two-level systems in superconducting coplanar-waveguide resonators. Phys. Rev. Applied 22, 014063 (2024). 
3. Lert Chayanun, et al. Characterization of process-related interfacial dielectric loss in aluminum-on-silicon by resonator microwave measurements, materials analysis, and imaging. APL Quantum 1, 026115 (2024). 

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Disclaimer

ConScience AB offers and sells custom nanofabrication services by request. ConScience AB makes no claim to copyrighted materials or methods externally provided and sells only services requested – which are tailored toward customer demands. ConScience AB performs custom nanofabrication within a wide spectrum of fields and therefore, cannot reasonably assess FTO upon every request. As such, ConScience AB operates in good faith with customers under the assumption that customers have rights to use all designs provided and requested. Upon entering into a contract with ConScience AB, the customer agrees to assume liability for the designs and methods provided.