TY  - INPR
EP  - 5
AV  - public
Y1  - 2025/01/30/
SP  - 1
TI  - An Integrated Deep-Cryogenic Temperature Sensor in CMOS Technology for Quantum Computing Applications
N1  - This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.
UR  - https://doi.org/10.1109/tasc.2025.3536636
PB  - Institute of Electrical and Electronics Engineers (IEEE)
ID  - discovery10204663
N2  - On-chip thermometry at deep-cryogenic temperatures is vital in quantum computing applications to accurately quantify the effect of increased temperature on qubit performance. In this work, we present a sub-1 K temperature sensor in CMOS technology based on the temperature dependence of the critical current of a superconducting (SC) thin-film. The sensor is implemented in 22-nm fully depleted silicon on insulator (FDSOI) technology and comprises a 6-nA-resolution current-output digital-to-analog converter (DAC), a transimpedance amplifier (TIA) with a SC thin-film as a gain element, and a voltage comparator. The circuit dissipates 1.5 >? W and is demonstrated operating at ambient temperatures as low as 15 mK, providing a variable temperature resolution reaching sub-10 mK.
KW  - Cryo-CMOS
KW  -  cryogenic electronics
KW  -  digital-toanalog converter (DAC)
KW  -  fully-depleted silicon-on-insulator (FDSOI)
KW  -  superconducting devices
KW  -  temperature sensor
A1  - Olivieri, F
A1  - Noah, GM
A1  - Swift, T
A1  - Fernando Gonzalez-Zalba, M
A1  - Morton, JJL
A1  - Gomez-Saiz, A
JF  - IEEE Transactions on Applied Superconductivity
ER  -