| Budget Amount *help |
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2017: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2015: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
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| Outline of Final Research Achievements |
A field-programmable gate array (FPGA) contains a matrix of reconfigurable gate array logic circuitry. FPGA-based systems can thus perform deterministic closed-loop control tasks at extremely fast loop rates. In this study, we presented the design of a new feedback-controlled electromigration (FCE) system using an FPGA. In addition, we applied the system for fabrication of Au atomic junctions and atomic gaps. Single-electron transistors (SETs) arrays operating at room temperature were also fabricated using the method. These results clearly imply that FPGA-based electromigration procedure is suitable for formation of Au atomic junctions, atomic gaps and SET arrays.
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