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Annealing encapsulants for InP I: Auger electron and secondary ion mass spectrometric studies

  • J. D. Oberstar
  • , B. G. Streetman
  • , J. E. Baker
  • , N. L. Finnegan
  • , E. A. Sammann
  • , Peter Williams

Research output: Contribution to journal › Article › peer-review

Abstract

Using Auger electron spectroscopy (AES) and secondary ion mass spectrometry (SIMS) we examined the InP encapsulation properties of chemically vapor-deposited SiO2, chemically vapor-deposited phosphosilicate glass (PSG) and r.f.-plasma-deposited Si3N4. Following 60 min 750°C anneals, indium is detected by both AES and SIMS on the surfaces of Si3N4 encapsulants. SIMS results also suggest that indium may out-diffuse through PSG caps during similar anneals. Silicon in-diffusion from the cap to the underlying InP is found to be significant in annealed SiO2-and Si3N4-capped samples. Little such silicon contamination of InP is observed after annealing with PSG encapsulation.

Original languageEnglish (US)
Pages (from-to)149-159
Number of pages11
JournalThin Solid Films
Volume94
Issue number2
DOIs
StatePublished - Aug 13 1982
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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