The 69th JSAP Spring Meeting 2022

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Oral presentation

11 Superconductivity » 11.5 Junction and circuit fabrication process, digital applications

[23p-D214-1~19] 11.5 Junction and circuit fabrication process, digital applications

Wed. Mar 23, 2022 1:00 PM - 6:00 PM D214 (D214)

Shigeyuki Miyajima(NICT), Yuki Yamanashi(Yokohama Natl. Univ.)

4:45 PM - 5:00 PM

[23p-D214-15] 170-GHz Operation of Single Flux Quantum Shift-Registers Using 25 kA/cm2 Nb/Al/AlOx/Al/Nb Junctions

〇Masamitsu Tanaka1, Taro Yamashita1, Akira Fujimaki1, Kazumasa Makise2,3, Shuichi Nagasawa3, Mutsuo Hidaka3 (1.Nagoya Univ., 2.NAOJ, 3.AIST)

Keywords:superconductuctor, subterahertz, integrated circuits

We report demonstration of single-flux-quantum sift-registers using 25 kA/cm2 Nb/Al/AlOx/Al/Nb Junctions. We obtained successful operation up to 170 GHz from on-chip high-speed test.