High-speed bend test method and failure prediction for drop impact reliability

S. K.W. Seah, E. H. Wong, Y. W. Mai, R. Rajoo, C. T. Lim

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

40 Citations (Scopus)

Abstract

The objective of this study is to obtain experimental failure models governing solder joint failure during drop impact testing of board assemblies. A high-speed bend test was developed to perform displacement-controlled bend test of board assemblies at the high flexing frequencies of drop impact. These test frequencies and amplitudes are not achievable by conventional universal testers. Experimental data was obtained for various PCB strain amplitudes, flexural frequencies solder alloys and pad finishes. Results from the high-speed bend tests are used to construct constant amplitude power law fatigue curves. Solder joint reliability found to be dependent on the test frequency, and therefore strain rate. The experimental failure data from these high-speed bend tests are a required basis for a drop impact failure criterion which can take into account frequency and amplitude effects and which is general enough to be applied to product level testing.

Original languageEnglish
Title of host publicationProceedings - IEEE 56th Electronic Components and Technology Conference
Pages1003-1008
Number of pages6
DOIs
Publication statusPublished - 2006
Externally publishedYes
EventIEEE 56th Electronic Components and Technology Conference - San Diego, CA, United States
Duration: 30 May 20062 Jun 2006

Publication series

NameProceedings - Electronic Components and Technology Conference
Volume2006
ISSN (Print)0569-5503

Conference

ConferenceIEEE 56th Electronic Components and Technology Conference
Country/TerritoryUnited States
CitySan Diego, CA
Period30/05/062/06/06

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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