PROJECT LIGHTNING. Technical Appendixes. Volume 2

Abstract

General results are presented on the characteristics of tin and indium cryotrons evaporated in conventional evaporators with no special techniques such as substrate heating or prenucleation. Indium from the conventional system is compared with films from more elaborate systems. Indium from the conventional system compared favorably with that produced in an ultra- high vacuum system. Reproducibility results for four in-line cryotrons on one substrate indicate that the cryotrons cannot be interconnected with a sufficient margin of safety on the bias or overdrive on the control when maximum operating speed is desired. The critical currents for a number of tin and indium films are plotted as a function of the ratio of film thickness to penetration depth. The gain characteristics of unity crossing crossed-film cryotrons are discussed.

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Document Details

Document Type
Technical Report
Publication Date
Jul 31, 1961
Accession Number
AD0273736

Entities

Organizations

  • IBM Thomas J. Watson Research Center

Tags

Communities of Interest

  • Advanced Electronics
  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemical Reactions
  • Critical Temperature
  • Energy
  • Films
  • Free Energy
  • Geometry
  • Heat Transfer
  • Heat Transfer Coefficients
  • Magnetic Fields
  • Measurement
  • Repetition Rate
  • Surface Properties
  • Switching
  • Thermal Conductivity
  • Thick Films
  • Thin Films
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Aerospace Test and Evaluation
  • Electronics Engineering
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).