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Proton irradiation effects on Sb-based heterojunction bipolar transistors

  • C. F. Lo
  • , H. Y. Kim
  • , J. Kim
  • , Shu Han Chen
  • , Sheng Yu Wang
  • , Jen Inn Chyi
  • , B. Y. Chou
  • , K. H. Chen
  • , Y. L. Wang
  • , C. Y. Chang
  • , S. J. Pearton
  • , L. I. Kravchenko
  • , S. Jang
  • , F. Ren

Research output: Contribution to journalArticlepeer-review

Abstract

In0.52Al0.48As/In0.39 Ga 0.61As0.77Sb0.23/In0.53 Ga 0.47 As double heterojunction bipolar transistors (DHBTs) were irradiated with 5 MeV protons at fluences from 2× 1011 to 2× 1015 protons/cm2. The radiation produced significant increases in generation-recombination leakage current in both emitter-base and base-collector junctions. The DHBTs irradiated with a dose of 2× 1011 cm-2, which was equivalent to around 40 years of exposure in low Earth orbit, showed minimal changes in the junction ideality factor, generation-recombination leakage current, current gain, and output conductance. The InAlAs/InGaAsSb/InGaAs DHBTs appear to be well suited to space or nuclear industry applications.

Original languageEnglish
Pages (from-to)L33-L37
JournalJournal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
Volume27
Issue number6
DOIs
StatePublished - 2009

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