| Project/Area Number |
26820130
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Osaka Prefecture University |
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Principal Investigator |
MIYAJIMA Shigeyuki 大阪府立大学, 工学(系)研究科(研究院), 客員研究員 (50708055)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 超伝導デバイス / 電流比較器 / ジョセフソン接合 / 単一磁束量子回路 / 超伝導 |
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| Outline of Final Research Achievements |
We analyzed the operation of a comparator for currents used in the single flux quantum (SFQ) circuits. A quasi-one-junction SQUID (QOS) comparator was used for a comparator in this work and analyzed by a numerical analysis including noise parameters. We found that the operating points and operating modes of the QOS comparator are affected strongly by the inductances in the QOS from the results of numerical analysis.
We also fabricated the QOS comparators using AIST standard process 2 (STP2). Furthermore, the QOS comparators with the superconducting shields in the chip are fabricated.We consider that these results can contribute to the practical system using the SFQ circuits in the near future.
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