NEGATIVE CONDUCTANCE IN BULK GALLIUM ARSENIDE AT HIGH FREQUENCIES.

Abstract

Two different negative conductance modes of operation in gallium arsenide samples with large length times doping concentration products are discussed. The negative conductance occurs in a low voltage mode at applied voltages below the threshold voltage for traveling domains, because of a high-field region at the cathode. Samples in this mode were used for both oscillators and amplifiers with efficiencies of about 2%. The other mode occurs at voltages several times the threshold voltage and in this mode powers as high as 33 watts have been obtained with an efficiency of 2%. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1967
Accession Number
AD0811465

Entities

People

  • Wilbert Keith Kennedy Jr

Organizations

  • Cornell University College of Engineering

Tags

DTIC Thesaurus Topics

  • Amplifiers
  • Efficiency
  • Elements
  • Frequency
  • Frequency Bands
  • Gallium
  • Gallium Arsenides
  • Group 13 Elements
  • Low Voltage
  • Metals
  • Oscillators
  • Post-Transition Metals
  • Voltage

Fields of Study

  • Materials science
  • Physics

Readers

  • Electronics Engineering
  • Semiconductor Device Technology

Technology Areas

  • Microelectronics