A technique for quantitative determination of the profile of the residual stress along the depth of p+ silicon films

E. H. Yang, S. S. Yang, S. H. Yoo

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

A quantitative method to determine the profile of the residual stress along the depth of a highly boron doped silicon film is reported. First, the stress profile relative to the stress at the neutral surface of the film is obtained by measuring deflection of p+ silicon cantilevers with different etch depths. Second, the average of the residual stress is obtained by using a rotating beam structure. The stress profile is determined completely from these two calculations. One example of application by this method illustrates that most of the p+ region is subjected to the tensile stress except for the region near the front surface.

Original languageEnglish
Pages (from-to)912
Number of pages1
JournalApplied Physics Letters
Volume67
DOIs
StatePublished - 1995

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