Submicron Sized, High Current Density Nb/PbBi Window Tunnel Junctions

  • J. Edstam
  • H. K. Olsson
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 64)


We have fabricated high quality, submicron sized Nb/PbBi window tunnel junctions suitable for sub-mm wave applications. The junctions had critical current densities in the range 20–4*104 A/cm2 and reproducible areas from 0.03 to 5 μm2. The junction quality (Vm~20 mV) did not depend on the junction size down to 0.2 μm2.


Acetone PMMA Polyimide NiCr Undercut 


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Copyright information

© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

  • J. Edstam
    • 1
  • H. K. Olsson
    • 1
  1. 1.Physics DepartmentChalmers University of TechnologyGöteborgSweden

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