Search Results - "Hinode, K.."
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New Nb multi-layer fabrication process for large-scale SFQ circuits
Published in Physica. C, Superconductivity (01-10-2009)“…We investigated the most suitable device structure for large-scale SFQ circuits and propose a new Nb 10-layer device structure that is composed of active…”
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2
Device Yield in Nb-Nine-Layer Circuit Fabrication Process
Published in IEEE transactions on applied superconductivity (01-06-2013)“…We are investigating device yield in our Nb-nine-layer fabrication process for single-flux-quantum (SFQ) circuits, in which the critical current density of the…”
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3
Development of advanced Nb process for SFQ circuits
Published in Physica. C, Superconductivity (01-10-2004)“…We have been developing a 10-kA/cm 2 advanced Nb process in order to fabricate larger scale and higher speed SFQ circuits with over 100k junctions. We have…”
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Yield Evaluation of 10-kA/cm ^ Nb Multi-Layer Fabrication Process Using Conventional Superconducting RAMs
Published in IEEE transactions on applied superconductivity (01-06-2007)“…To achieve larger scale and higher speed single flux quantum (SFQ) circuits, we have been developing a 10-kA/cm 2 Nb multi-layer fabrication process composed…”
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5
Planarization Process for Fabricating Multi-Layer Nb Integrated Circuits Incorporating Top Active Layer
Published in IEEE transactions on applied superconductivity (01-06-2009)“…We have developed an advanced process for fabricating a next-generation multi-layer Nb integrated circuit structure incorporating a top active layer. In this…”
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6
Fabrication process of planarized multi-layer Nb integrated circuits
Published in IEEE transactions on applied superconductivity (01-06-2005)“…To improve the operating speed and density of Nb single-flux-quantum integrated circuits, we developed an advanced fabrication process based on NEC's standard…”
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7
The Effects of a DC Power Layer in a 10-Nb-Layer Device for SFQ LSIs
Published in IEEE transactions on applied superconductivity (01-06-2009)“…We have evaluated the effects of a DC power (DCP) layer in a 10-Nb-layer device using SQUIDs and large-scale Josephson transmission lines (LS-JTLs). The…”
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8
Hydrogen-Inclusion-Induced Critical Current Deviation of Nb/AlOx/Nb Josephson Junctions in Superconducting Integrated Circuits
Published in IEEE transactions on applied superconductivity (01-06-2009)“…Josephson junctions with niobium electrodes connected with palladium, which is employed in the bump metallization, have about 20% larger critical current…”
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9
Characteristics of Nb/AlOx/Nb junctions fabricated in planarized multi-layer Nb SFQ circuits
Published in Physica. C, Superconductivity (01-10-2006)“…We developed a fabrication process for planarized multi-layer Nb SFQ circuits. This new process has several new steps for achieving a planarized multi-layer…”
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10
Effects of a DC-Power Layer Under a Ground Plane in SFQ Circuits
Published in IEEE transactions on applied superconductivity (01-06-2007)“…Large-scale SFQ integrated circuits require a large amount of dc-bias current. The magnetic fields induced by the dc-bias currents and the return currents…”
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11
Inductances of striplines and stacked vias in planarized multi-layer Nb circuits
Published in Physica. C, Superconductivity (01-10-2006)“…We have evaluated the inductances of the striplines and the stacked vias which are realized in the planarized 6-Nb-layer device fabricated by our advanced Nb…”
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12
Resistivity Increase in Ultrafine-Line Copper Conductor for ULSIs
Published in Japanese Journal of Applied Physics (15-10-2001)“…The resistivities of copper (Cu) thin films and damascene Cu fine lines were precisely measured by utilizing Matthiessen's rule. It was shown that this…”
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13
Effect of photomask pattern shape for a junction counter-electrode on critical current uniformity and controllability in Nb/AlOx/Nb junctions
Published in IEEE transactions on applied superconductivity (01-06-2005)Get full text
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14
Improvement of Fabrication Process for 10- ^ Multi-Layer Nb Integrated Circuits
Published in IEEE transactions on applied superconductivity (01-06-2007)“…We have developed an advanced fabrication process for fabricating Nb integrated circuits with up to nine planarized Nb layers, and with critical current…”
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15
Reliability evaluation of Nb 10 kA/cm2 fabrication process for large-scale SFQ circuits
Published in Physica. C, Superconductivity (01-10-2005)“…We developed a 10 kA/cm2 Nb fabrication process, whose device structure was composed of six planarized Nb-layers, an Nb/AlOx /Nb junction layer, an Mo resistor…”
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16
Planarization of Josephson junctions for large-scale integrated Nb SFQ circuits by mechanical polishing
Published in Physica. C, Superconductivity (01-10-2004)“…Mechanical polishing (MP) is a key technology for fabricating multi-layer, large-scale integrated Nb SFQ circuits. This process, however, could possibly…”
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17
Nb/AlOx/Nb junctions fabricated using ECR plasma etching
Published in Physica. C, Superconductivity (01-10-2004)“…We fabricated Nb/AlOx/Nb junctions using electron cyclotron resonance (ECR) plasma etching. When junctions were fabricated using ECR plasma etching for the…”
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18
Effect of photomask pattern shape for a junction counter-electrode on critical current uniformity and controllability in Nb/AlO/sub x//Nb junctions
Published in IEEE transactions on applied superconductivity (01-06-2005)“…The authors evaluated the effect of photomask pattern shape for a counter-electrode on critical current I/sub c/ uniformity and controllability in Nb/AlOx/Nb…”
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19
Integrated cryogenic current comparator based on superconductor LSI technology
Published in CPEM 2010 (01-06-2010)“…A new implementation of Sullivan-Dziuba type cryogenic current comparators (CCCs) is proposed. We designed an integrated CCC device consisting of a thin-film…”
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Conference Proceeding -
20
Atomic hydrogen enhanced reflow of copper
Published in Applied physics letters (10-03-1997)“…A low temperature technique for copper metallization using sputter-reflow process is investigated. Metallization of 0.15–1.5 μm prepatterned trenches at a…”
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