Physics of Ultrasmall Superconducting Circuits

Abstract

The collaboration between Yale and the Westinghouse Science and Technology Center produced high quality, sub-micron, superconducting Nb trilayer tunnel junctions. These junctions were made using a fabrication process developed at Westinghouse as a result of this collaboration. The junctions were fabricated on thin (2 mil) quartz substrates using the existing facilities at Westinghouse. The quality of these devices compares favorably with others reported, particularly in the sub-micron size range. These junction were used as receiving elements in a broad-band 80-120 GHz mixer receiver. This receiver had no mechanical tuning elements. The noise of this receiver using these devices is among the lowest reported in the 80-120 GHz frequency band, particularly among those with no mechanical tuning elements.

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Document Details

Document Type
Technical Report
Publication Date
Jun 30, 1991
Accession Number
ADA240156

Entities

People

  • Daniel E. Prober

Organizations

  • Yale University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Buildings And Structures
  • Capacitance
  • Classification
  • Current Density
  • Dielectrics
  • Fabrication
  • Frequency
  • Frequency Bands
  • Impedance
  • Low Noise
  • Materials
  • Microwave Receivers
  • Quasiparticles
  • Security
  • Substrates
  • Teamwork
  • Tunnels

Fields of Study

  • Physics

Readers

  • Integrated Circuit Design and Technology.
  • Microwave Engineering.
  • Superconducting Magnet Technology