Shunt-protected single-electron tunneling circuits fabricated on a quartz wafer

Traverse City, MI(2009)

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摘要
We address fabrication challenges for the single-electron tunneling (SET) devices, based on ultrasmall junctions Al/AlOx/Al. Nanoscale SET components are known to be very fragile in respect to electrostatic breakdown, which turns out to be a critical problem for devices, fabricated on insulating substrates. For the breakdown prevention, we successfully realized on-chip silicon shunts, whose conductivity advantageously vanished at low temperatures, making possible undisturbed SET operation at T ~ 100 mK.
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aluminium,aluminium compounds,electric breakdown,quartz,single electron devices,tunnelling,wafer-scale integration,al-alox-al,electrostatic breakdown,on-chip silicon shunts,quartz wafer,shunt protected single electron tunneling circuits,ultrasmall junctions,single-electron tunneling,electron charge,electron-beam lithography,low-permittivity substrates,chip,chromium,electrostatics,circuits,temperature,silicon,tunneling,resistance,electron beam lithography,conductivity,fabrication
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