GRENOBLE, France – Feb. 4,  2021 – CEA  announced today the acquisition of a Cryogenic Wafer Prober manufactured by Bluefors Oy, the Finnish specialist in designing and manufacturing ultralow temperature-dilution refrigerator systems for cutting-edge research in quantum computing and nanotechnology. CEA-Leti, a technology research institute at CEA, is the first microelectronics research institute to install this strategic equipment in its cleanroom.

Created by Bluefors Oy and the Finnish company Afore, the cryogenic prober is a tool that enables fully automatic measurements of 300mm wafers at temperatures below 2K. This new tool allows up to 100x faster throughput in sample characterization than existing systems and is expected to dramatically accelerate development of cryogenic quantum devices, electronics and detectors. It will be used to characterize CEA-Leti’s silicon-based qubits, measuring their performance at temperatures between 2K and 4K, extendable to 20K. This acquisition will be used on CEA-Leti’s 300mm wafer-fabrication line.

“CEA-Leti’s installation of a cryogenic-compatible prober from Bluefors brings an important new capability to the institute’s development infrastructure, with the ability to run electronic tests at gigahertz frequencies and extremely low temperatures on our 300mm line,” said François Perruchot, CEA-Leti’s quantum program coordinator and engineer.

Low-temperature characterization is a critical step for developing a quantum computer based on spin qubits, as confinement of few electrons or holes in quantum dots typically appears at temperatures below 4K. Moreover, although coherent spin operation in qubits requires temperatures, for now, below 1K, this limit may be raised in the near future.

The acquisition is part of CEA-Leti’s mission to become a leader in quantum computing and to strengthen the EU’s position in the global race to develop, commercialize and use this strategic technology. Its other recent developments include research breakthroughs that pave the way for massive integration of qubits, which is required for quantum supremacy, and building a quantum-photonics platform to ensure ultra-secure data for vital global industries such as finance, health care, energy, telecommunications and defense.

About CEA-Leti (France)

Leti, a technology research institute at CEA, is a global leader in miniaturization technologies enabling smart, energy-efficient and secure solutions for industry. Founded in 1967, CEA-Leti pioneers micro-& nanotechnologies, tailoring differentiating applicative solutions for global companies, SMEs and startups. CEA-Leti tackles critical challenges in healthcare, energy and digital migration. From sensors to data processing and computing solutions, CEA-Leti’s multidisciplinary teams deliver solid expertise, leveraging world-class pre-industrialization facilities. With a staff of more than 1,900, a portfolio of 3,100 patents, 10,000 sq. meters of cleanroom space and a clear IP policy, the institute is based in Grenoble, France, and has offices in Silicon Valley and Tokyo. CEA-Leti has launched 65 startups and is a member of the Carnot Institutes network. Follow us on www.leti-cea.com and @CEA_Leti.

Technological expertise

CEA has a key role in transferring scientific knowledge and innovation from research to industry. This high-level technological research is carried out in particular in electronic and integrated systems, from microscale to nanoscale. It has a wide range of industrial applications in the fields of transport, health, safety and telecommunications, contributing to the creation of high-quality and competitive products.

For more information: www.cea.fr/english 

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