CryoCMOS Characterization Strategies and Challenges

Giagkoulovits, C. , Ahmad, M., Nikbakhtnasrabadi, F. , Imroze, F., Weides, M. and Heidari, H. (2022) CryoCMOS Characterization Strategies and Challenges. In: 29th IEEE International Conference on Electronics, Circuits and Systems (ICECS 2022), Glasgow, UK, 24-26 October 2022, ISBN 9781665488235 (doi: 10.1109/ICECS202256217.2022.9971010)

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The use of CMOS circuits for the control and readout of qubits is a step that will speed up the process of creating more complex qubit arrays than is currently possible. This paper focuses on the characterization strategies and challenges entailed in using CMOS technology at low cryogenic temperatures, where qubits can operate, replacing long interconnecting cables to benchtop instruments. The restricting cooling power of a cryostat, determines the system design between the quantum layer of qubits and the classical layer of circuits. Several architectures and device technologies have been proposed to house both qubits and circuits at the same stage of a cryogenic chamber. New cryogenic transistor, devices and silicon layer models are needed for a certain CMOS technology and process to be used for CryoCMOS circuit design at a selected temperature. Characterization approaches and the necessary extracted parameters for modelling are being determined and can potentially form a new protocol as the system becomes more complex than a typical probe station.

Item Type:Conference Proceedings
Glasgow Author(s) Enlighten ID:Nikbakhtnasrabadi, Dr Fatemeh and Weides, Professor Martin and Giagkoulovits, Dr Christos and Ahmad, Mr Meraj and Heidari, Professor Hadi and Imroze, Dr Fiheon
Authors: Giagkoulovits, C., Ahmad, M., Nikbakhtnasrabadi, F., Imroze, F., Weides, M., and Heidari, H.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
311976Cryogenic qubit control interface using analog/mixed-signal circuits and systemsHadi HeidariEngineering and Physical Sciences Research Council (EPSRC)PRF-02-A-03ENG - Electronics & Nanoscale Engineering
314911Design toolkits for cryo-CMOS to enable the next generation of scalable quantum computersMartin WeidesInnovate UK (INNOVATE)10006017ENG - Electronics & Nanoscale Engineering
314879Altnaharra: Cryoelectronics for Quantum CircuitsMartin WeidesInnovate UK (INNOVATE)10006186ENG - Electronics & Nanoscale Engineering