The Japan Society of Applied Physics

2023 International Conference on Solid State Devices and Materials

2023 International Conference on Solid State Devices and Materials

Sep 5, 2023 - Oct 31, 2023
Nagoya Congress Center

4:00 PM - 4:30 PM

[B-2-01 (Invited)] Cryogenic InGaAs HEMTs for LNA and routing circuits in Quantum Computing

○Sanghyeon Kim1, Jaeyong Jeong1, Seong Kwang Kim1, Yoon-Je Suh1, Jisung Lee2, Joonyoung Choi3, Juhyuk Park1, Joon Pyo Kim1, Bong Ho Kim1, Younjung Jo3, Dae-myeong Geum4, Seung-Young Park2, Jongmin Park5 (1. KAIST (Korea), 2. KBSI (Korea), 3. KNU (Korea), 4. CBNU (Korea), 5. KANC (Korea))

https://doi.org/10.7567/SSDM.2023.B-2-01

Cryogenic RF transistors and routing circuits operat-ing with extremely low power are essential as control/readout electronics for future large-scale quantum computing systems. In this work, we demonstrate 3D stackable InGaAs HEMT-based cryogenic RF transistors and routing circuits integrated with Nb superconductors for ultra-low power operation.