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Practical High-Resolution Programmable Voltage Standards Using Double- and Triple-Stacked MoSi2-Barrier Junctions.

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Title: Practical High-Resolution Programmable Voltage Standards Using Double- and Triple-Stacked MoSi2-Barrier Junctions.
Authors: Chong, Yonuk1 yonuk@boulder.nist.gov, Burroughs, C. J.1, Dresseihaus, P. D.1, Hadacek, N.1, Yamamori, H.2, Benz, S. P.1
Source: IEEE Transactions on Applied Superconductivity. Jun2005 Part 1 of 3, Vol. 15 Issue 2, p461-464. 4p.
Subjects: Superconductors, Digital electronics, Electronic circuit design, Logic design, Machine theory, Programmable logic devices
Abstract: We have developed vertically stacked superconductor-normal-metal-superconductor Josephson junction technology for the next-generation quantum voltage standards. Stacked junctions provide a practical way of increasing the output voltage and operating margins. In this paper, we present fully functioning programmable voltage standard chips with double- and triple- stacked MoSi2 barrier Josephson junctions with over 100 000 junctions operating simultaneously on a 1 cm × 1 cm chip. The maximum output voltages of the double- and triple-stacked chips were 2.6 V and 3.9 V, with respective operating current margins of 2 mA and 1 mA. A new trinary-logic design is used to achieve higher voltage resolution. Thermal transport in these high-density chips will be briefly discussed. [ABSTRACT FROM AUTHOR]
Copyright of IEEE Transactions on Applied Superconductivity is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Practical High-Resolution Programmable Voltage Standards Using Double- and Triple-Stacked MoSi<subscript>2</subscript>-Barrier Junctions.
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  Data: <searchLink fieldCode="JN" term="%22IEEE+Transactions+on+Applied+Superconductivity%22">IEEE Transactions on Applied Superconductivity</searchLink>. Jun2005 Part 1 of 3, Vol. 15 Issue 2, p461-464. 4p.
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  Data: We have developed vertically stacked superconductor-normal-metal-superconductor Josephson junction technology for the next-generation quantum voltage standards. Stacked junctions provide a practical way of increasing the output voltage and operating margins. In this paper, we present fully functioning programmable voltage standard chips with double- and triple- stacked MoSi2 barrier Josephson junctions with over 100 000 junctions operating simultaneously on a 1 cm × 1 cm chip. The maximum output voltages of the double- and triple-stacked chips were 2.6 V and 3.9 V, with respective operating current margins of 2 mA and 1 mA. A new trinary-logic design is used to achieve higher voltage resolution. Thermal transport in these high-density chips will be briefly discussed. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of IEEE Transactions on Applied Superconductivity is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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              Text: Jun2005 Part 1 of 3
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