Analysis of strain in dielectric coated three dimensional Si micropillar arrays

作者:Voss Lars F*; Reinhardt Cathy E; Graff Robert T; Conway Adam M; Shao Qinghui; Nikolic Rebecca J; Dar Mushtaq A; Cheung Chin L
来源:Journal of Vacuum Science and Technology B, 2013, 31(6): 060602.
DOI:10.1116/1.4826500

摘要

Stress induced in [100] oriented Si circular micropillars by coatings of low pressure chemical vapor deposited B-10, SiyNx, and plasma enhanced chemical vapor deposited SiO2 were measured using micro-Raman spectroscopy. Both tensile and compressive strains in the Si micropillars were observed. Exceptionally large stresses were found to exist in some of the measured Si micropillars. The cross-sectional shapes of these structures were shown to be an important factor in correlating their strain concentrations which could fracture the micropillar.

  • 出版日期2013-11

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