Microstructure and thermal stability of transition metal nitrides and borides on GaN
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Microstructure and thermal stability of transition metal nitrides and borides on GaN

  • Author(s): Jasinski, J.
  • Kaminska, E.
  • Piotrowska, A.
  • Barcz, A.
  • Zielinski, M.
  • et al.
Abstract

Microstructure and thermal stability of ZrN/ZrB2 bilayer deposited on GaN have been studied using transmission electron microscopy methods (TEM) and secondary ion mass spectrometry (SIMS). It has been demonstrated that annealing of the contact structure at 11000C in N2 atmosphere does not lead to any observable metal/ semiconductor interaction. In contrast, a failure of the integrity of ZrN/ZrB2 metallization at 8000C, when the heat treatment is performed in O2 ambient has been observed.

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