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Lesson 1 - Cryostats: What Are They and How Are They Used?


This course is intended to introduce researchers and scientists to the basics of cryostats, and cryogenic probe systems that are used in quantum development programs. Users will learn about the components of a cryostat, state-of-the-art methods for loading a device in a milli-Kelvin cryostat for pre-characterization of qubits, and the functionality of cryogenic probing systems for characterizing devices at temperatures below 4K.

Who should take this course?

This course is designed for entry-level students/researchers who are looking to learn about cryostats and cryogenic test and measurement tools for quantum development.

We'll cover:

  • Cryostats: What are they and how are they used?
    • This video introduces the temperatures ranges of interest for quantum developers, and discusses the various technologies available to reach those temperatures. The anatomy of a cryostat is reviewed.
  • Interfacing to a device in a milli-Kelvin cryostat
    • This video shows the operation of a real cryostat in a laboratory environment to give uses a feel for what it’s like to work with milli-Kelvin systems. Users are also introduced to a probe socket that can be used to load a device without wire bonding or complicated packaging techniques. The video concludes with some basic troubleshooting and issues that are commonly encountered by new cryogenics users.
  • Cryogenic probe stations: chip-scale and wafer scale probing at < 4K  (COMING SOON)
    • This video is an introduction to chip and wafer scale probing tools. We’ll discuss the importance of thermal lagging and the subtlties of chuck temperature versus device temperature. Users will walk away with an understanding of why cryogenic probing tools are used in a quantum development program and how to select the right choice for their own work.