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Grain growth in eutectic Pb/Sn ball grid array solder joints

  • SUNY Buffalo

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

9 Scopus citations

Abstract

The reliability of solder joints in electronic packaging is becoming more important as Ball Grid Array (BGA) develops rapidly into the most popular packaging technology. Thermal fatigue of solder joints has been a reliability concern in the electronic packaging industry since the introduction of surface mount technology (SMT). Micro-structural coarsening (grain growth) is considered to be closely related to thermomechanical fatigue failure. Many researchers proposed coarsening models for bulk scale metals. But these models have never been verified for micron scale actual BGA solder balls. In the present study, three different grain growth models are investigated experimentally on BGA solder balls in a real life electronic package. Model simulations obtained from three models were compared against test data. The best performing model was chosen for finite element fatigue reliability studies based on continuum damage mechanics.

Original languageEnglish
Title of host publicationITHERM 2002 - 8th Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems
EditorsBahgat G. Sammakia, Yogendra K. Joshi, Ganesh Subbarayan, Cristina H. Amon, Koneru Ramakrishna, Sanjeev B. Sathe
PublisherIEEE Computer Society
Pages903-908
Number of pages6
ISBN (Electronic)0780371526
DOIs
StatePublished - 2002
Event8th Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITHERM 2002 - San Diego, United States
Duration: May 30 2002Jun 1 2002

Publication series

NameInterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITHERM
Volume2002-January
ISSN (Print)1936-3958

Conference

Conference8th Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITHERM 2002
Country/TerritoryUnited States
CitySan Diego
Period05/30/0206/1/02

Keywords

  • Electronic packaging thermal management
  • Electronics industry
  • Electronics packaging
  • Fatigue
  • Finite element methods
  • Soldering
  • Surface-mount technology
  • Testing
  • Thermomechanical processes
  • Tin

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