A Low-Power Current Readout for 77K Cryo-CMOS Quantum Systems with In-Circuit Model Extraction and Embedded Leakage-Based Temperature Monitoring

Xin Kai Cheng, Tzu Chieh Tung, Tsung Heng Tsai*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A low-power cryo-CMOS interface operating at 77 K, including the pulse generator and the current readout, is implemented for charge-based quantum systems. To compensate the inaccuracy caused by amateur cryo-CMOS models at 77K, in-circuit model extraction is proposed in this work. Key model parameters such as the transconductance and the threshold voltage are successfully extracted at 77 K by configuring the readout circuits in the extraction mode. The pulse generator and the current readout are implemented in TSMC 40 nm CMOS 1P10M process. A leakage-based temperature sensor is also embedded on the same chip. The supply voltage is 0.9V, and the overall power consumption is about 150 µW.

Original languageEnglish
Title of host publication2022 International Symposium on VLSI Technology, Systems and Applications, VLSI-TSA 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665409230
DOIs
StatePublished - 2022
Event2022 International Symposium on VLSI Technology, Systems and Applications, VLSI-TSA 2022 - Hsinchu, Taiwan
Duration: 18 Apr 202221 Apr 2022

Publication series

Name2022 International Symposium on VLSI Technology, Systems and Applications, VLSI-TSA 2022

Conference

Conference2022 International Symposium on VLSI Technology, Systems and Applications, VLSI-TSA 2022
Country/TerritoryTaiwan
CityHsinchu
Period18/04/2221/04/22

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