Diffusion Kinetics and Microstructure of Eutectic and Composite Solder/Copper Joints

Sn/Pb solders are widely used by the electronics industry to provide both mechanical and electrical interconnections between electronic components and printed circuit boards. Solders with enhanced mechanical properties are required for high reliability for Surface Mount Technology (SMT) applications. One approach to improve the mechanical properties of solder is to add metallic or intermetallic particles to eutectic 63Sn/37Pb solder to form composite solders. Cu6Sn5 and Cu3Sn form and grow at the solder/copper substrate interface. The formation and growth of these intermetallics have been proposed as controlling mechanisms for solderability and reliability of solder/copper joints. The goal of this study was to investigate the diffusion kinetics and microstructures of six types of composite solder/copper joints.

Identiferoai:union.ndltd.org:unt.edu/info:ark/67531/metadc278545
Date05 1900
CreatorsWu, Yujing
ContributorsPinizzotto, Russell F., Jacobs, Elizabeth G., Matteson, Samuel E., Golden, David E., Littler, C. L., Hu, Zhibing, Thomas, Ruthanne D.
PublisherUniversity of North Texas
Source SetsUniversity of North Texas
LanguageEnglish
Detected LanguageEnglish
TypeThesis or Dissertation
Formatxvi, 294 leaves : ill., Text
RightsPublic, Copyright, Copyright is held by the author, unless otherwise noted. All rights reserved., Wu, Yujing

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