Stress relaxation in sandwiched Si3N4/Al/Si 3N4 thin films

  • G. R. Chang
  • , F. Ma
  • , B. Ma
  • , K. W. Xu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

An in-situ investigation was performed on the stress relaxation of sandwiched Si3N4/Al/Si3N4 thin films by using multi-beam optical stress sensor (MOSS), a developed technique for substrate curvature measurement. Furthermore, the microstructures of the thin films were characterized by several analyzing techniques, such as X-ray Photoelectron Spectroscopy (XPS), Field Emission Scanning Electron Microscope (FE-SEM) and X-ray energy dispersive spectroscopy (EDS). The results indicated sharp rise and drop of the residual stress due to the cracks of Si 3N4 surface layer or the separation of Al particles during annealing process. An appropriate model was suggested to interpret this phenomenon.

Original languageEnglish
Title of host publicationTHERMEC 2009 Supplement
Pages91-96
Number of pages6
DOIs
StatePublished - 2010
Event6th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2009 - Berlin, Germany
Duration: 25 Aug 200929 Aug 2009

Publication series

NameAdvanced Materials Research
Volume89-91
ISSN (Print)1022-6680

Conference

Conference6th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2009
Country/TerritoryGermany
CityBerlin
Period25/08/0929/08/09

Keywords

  • Sandwiched thin films
  • Stress relaxation

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