Skip to main navigation Skip to search Skip to main content

Growth inhibition of interfacial intermetallic compounds by pre-coating oriented Cu6Sn5grains on Cu substrates

  • Ming Yang
  • , Yong Ho Ko
  • , Junghwan Bang
  • , Taek Soo Kim
  • , Chang Woo Lee*
  • , Shuye Zhang
  • , Mingyu Li
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

An effective method for inhibiting the growth of interfacial intermetallic compounds during solid-state aging has been proposed in this study. Pre-tinned Cu substrates containing oriented interfacial Cu6Sn5grains were prepared and reacted with a low-Ag Pb-free solder. The results show that the initial oriented interfacial grains were retained after the subsequent reflow. In addition, the presence of the oriented grains accelerated their orientation concentration and significantly affected the ultimate orientation distribution range during solid-state aging. As a result, the growth of the interfacial intermetallic compounds was inhibited due to the slower diffusion of Sn species through the solder/substrate interface.

Original languageEnglish
Pages (from-to)533-541
Number of pages9
JournalJournal of Alloys and Compounds
Volume701
DOIs
StatePublished - 2017
Externally publishedYes

Keywords

  • Crystal orientation
  • Growth kinetics
  • Interfacial reaction
  • Lead-free solder
  • Low Ag content solder

Fingerprint

Dive into the research topics of 'Growth inhibition of interfacial intermetallic compounds by pre-coating oriented Cu6Sn5grains on Cu substrates'. Together they form a unique fingerprint.

Cite this