In the dynamic growth field of quantum technologies, superconducting circuits are predestined for the realization of large-scale quantum systems due to their monolithic integration. The engineering underpinning of system integration, in particular high-frequency or microwave (MW) packaging, plays an important role in the transfer to application. In KeraMiQ, ceramic multilayer circuit carriers (LTCC) are to be researched at temperatures up to the mK range. The innovations will be demonstrated using passive components, MW amplifiers, matching circuits and low crosstalk, interposers for quantum bit circuits for signal fan out as well as MW cavities and housings.

The Leibniz IPHT will focus on new concepts at very low temperatures down to the mK range. IMST GmbH and the Ilmenau University of Technology will manufacture multilayer components with conductive paths, micro-vias and flat surfaces for the integration of external components or thin-film components made of various materials, which will be characterized in detail at low temperatures at Leibniz IPHT. Suitable demonstrators will then be jointly realized and evaluated at low temperatures at the institute. KeraMiQ thus addresses innovative materials, structuring and 3D integration methods, novel material concepts and layer systems for the scalability of superconducting quantum systems in the field of quantum computing, sensing, and communication for German and European partners.

The KeraMiQ project is funded by the BMFTR under the number 13N16962 as part of the funding measure: “Innovative materials and processes for quantum systems” via the VDI project management organization.