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Mean time to failure of SnAgCuNi solder joints under DC

  • SUNY Buffalo

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

3 Scopus citations

Abstract

Electromigration time to failure and electrical resistivity of 95.5%Sn-1.5%Ag-0.5%Cu-0.03W%Ni (SACN) microelectronics solder joints have been investigated experimentally. A Black's type electromigration time to failure equation is developed to describe the time to failure versus current density and temperature. The activation energy over the range of 83°C∼174°C is measured to be 0.77±0.12eV, and the current density exponent is found to be (8.60±1.65). It is also shown that the most commonly used Black's electromigration time to failure equation cannot be used for solder joints.

Original languageEnglish
Title of host publicationProceedings of the 13th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2012
Pages518-520
Number of pages3
DOIs
StatePublished - 2012
Event13th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2012 - San Diego, CA, United States
Duration: May 30 2012Jun 1 2012

Publication series

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

Conference

Conference13th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2012
Country/TerritoryUnited States
CitySan Diego, CA
Period05/30/1206/1/12

Keywords

  • Electromigration
  • lead-free solder joints
  • resistance evolution
  • solder joint resistance
  • time to failure

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