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Thermal cycling aging effects on the tensile property of lead-free solder Sn-3Ag-0.5Cu

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

Abstract

Structural reliability issues attract more and more attentions with the rapid development of electronic packaging industry. Sn-Ag-Cu alloys have long been used as solder materials for the interconnections of microelectronic devices because of low melting temperature and good wettability. Many tensile tests were performed on Sn-3Ag-0.5Cu solder alloys at various strain rates and over a wide temperature range [1]. And thermal cycling aging studies on a lead-free Sn-Ag-Cu solder joint were investigated [2]. In this study, a series of tensile tests of Sn-3Ag-0.5Cu were investigated at different number of cycles and different temperatures. The possible mechanism of tensile strength, ductility improvement were discussed. The samples were placed in liquid nitrogen environment at 77 K for 10 minutes and then 293K(398K) for 10 minutes as one thermal cycle. The number of cycles is 5, 15, 25 and 35. Thermal cycling induces changes in properties.

Original languageEnglish
Title of host publication18th International Conference on Electronic Packaging Technology, ICEPT 2017
EditorsChenxi Wang, Yanhong Tian, Tianchun Ye
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages708-711
Number of pages4
ISBN (Electronic)9781538629727
DOIs
StatePublished - 19 Sep 2017
Event18th International Conference on Electronic Packaging Technology, ICEPT 2017 - Harbin, China
Duration: 16 Aug 201719 Aug 2017

Publication series

Name18th International Conference on Electronic Packaging Technology, ICEPT 2017

Conference

Conference18th International Conference on Electronic Packaging Technology, ICEPT 2017
Country/TerritoryChina
CityHarbin
Period16/08/1719/08/17

Keywords

  • lead-free solder
  • Sn-3Ag-0.5Cu
  • thermal cycling

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