Cryo-CMOS Design for Quantum Control and Read-Out

Abstract

The concept of using CMOS at cryogenic temperatures is fairly novel, so its behavior in comparison to CMOS at room temperature is not fully understood; this is mainly due to how difficult it is to perform high volumes of tests on these devices at cryogenic temperatures like is done for higher temperatures. That being said, the newly available and currently undergoing research on circuitry for read-out and control of quantum devices using closely integrated cryo-CMOS technology demonstrates massive improvements to the pitfalls associated with using environmentally separate instrumentation. This thesis aims to contribute to the growing use of cryo-CMOS in such applications by designing circuits for effective data collection on cryo-CMOS devices. Specifically, this thesis performs schematic capture and layout of circuits for on-chip thermometry and DC characterization of CMOS devices at cryogenic temperatures.