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Application of Moiré interferometry to determine strain fields and debonding of solder joints in BGA packages

  • Medical College of Wisconsin
  • SUNY Buffalo
  • Micron Technology Incorporated

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Moiré interferometry (MI) has proven to be a very useful tool for testing the reliability of many different electronic packages. Historically, MI has been used for monotonic thermomechanical loading or steady-state conditions induced strain measurements but never for fatigue testing. Interface failure of microelectronics devices is a significant concern in packaging since it may cause a device to malfunction while in service. In this study, solder joint fatigue mechanisms, and their interfaces, are experimentally observed by means of a MI system. In addition, scanning electronic microscopy (SEM) was extensively utilized to support and document the MI observations. The combination of these two techniques and the robustness of the MI system is shown to be effective for the determination of the failure mechanisms of electronic packaging interfaces.

Original languageEnglish
Pages (from-to)217-223
Number of pages7
JournalIEEE Transactions on Components and Packaging Technologies
Volume27
Issue number1
DOIs
StatePublished - Mar 2004

Keywords

  • Fatigue test
  • Interface reliability
  • Microelectronic packaging
  • Moiré interferometry

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