Skip to main navigation Skip to search Skip to main content

Morphologies and grain orientations of Cu-Sn intermetallic compounds in Sn3.0Ag0.5Cu/Cu solder joints

  • Harbin Institute of Technology

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

Abstract

Electron Backscatter Diffraction (EBSD) technology combined with Scanning Electron Microscope (SEM) was employed to investigate morphologies and orientations of Cu-Sn intermetallic compounds formed between Sn3.5Ag0.5Cu lead-free solder alloy and copper substrate. After long-time soldering, two small planes with a break angle appear on top and side of Cu 6Sn 5 scallop, and the angle between the adjacent planes was approximately 120°. Round plate-type defects were found on the top side of Cu substrate. Preferable IMCs grain orientation was Cu 6Sn 5 (0001) //substrate surface, Cu 3Sn (1̄00) & (100) //substrate surface. Single crystal Cu-Sn IMCs preferable grain orientation was Cu 3Sn (100)// Cu 6Sn 5 (0001).

Original languageEnglish
Title of host publicationIBSC 2012 - Proceedings of the 5th International Brazing and Soldering Conference
Pages217-220
Number of pages4
StatePublished - 2012
Event5th International Brazing and Soldering Conference, IBSC 2012 - Las Vegas, NV, United States
Duration: 22 Apr 201225 Apr 2012

Publication series

NameIBSC 2012 - Proceedings of the 5th International Brazing and Soldering Conference

Conference

Conference5th International Brazing and Soldering Conference, IBSC 2012
Country/TerritoryUnited States
CityLas Vegas, NV
Period22/04/1225/04/12

Keywords

  • Cu-Sn IMCs
  • Grain orientation
  • Morphology

Fingerprint

Dive into the research topics of 'Morphologies and grain orientations of Cu-Sn intermetallic compounds in Sn3.0Ag0.5Cu/Cu solder joints'. Together they form a unique fingerprint.

Cite this