The computing power of quantum computers depends heavily on their central hardware element: the qubit. There are several approaches to realizing qubits, but there is currently a lack of stable, scalable production methods to achieve a breakthrough in industrial use. The European MATQu (Materials for Quantum Computing) project, which was launched in June, aims to expand existing European expertise in the field of materials and production processes. The aim is to pave the way for solid-state quantum computers for European industry. Superconducting Josephson junctions are currently the most mature solid-state platform for stable superconducting qubits.
The project focuses on new materials as well as processing and characterization technologies for quantum computer hardware. In terms of substrate technology, process technology and tools, the project brings together the most important European players in this field. A total of 18 European partners are working on the project.
The two Fraunhofer Institutes IPMS and IAF are contributing their expertise in 300 mm production and low-temperature measurement technology. IPMS's expertise in 300 mm manufacturing already serves as an industry standard for CMOS computing platforms. The project aims to gain new insights into the material and process influences for the manufacturing process of superconducting qubits, especially in the area of deposition, structuring and the integration of superconducting layers.
The Fraunhofer IAF has experience and knowledge in the field of low-temperature measurement technology, especially for investigating the variability of superconducting layers. The Freiburg institute has numerous devices for characterizing cryogenic components, such as those used in quantum computing. This gives European companies, especially SMEs and start-ups, access to modern testing and characterization equipment in addition to the necessary expertise.
