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Low Temperature Sintering Cu6Sn5 Nanoparticles for Superplastic and Super-uniform High Temperature Circuit Interconnections

  • Ying Zhong
  • , Rong An
  • , Chunqing Wang*
  • , Zhen Zheng
  • , Zhi Quan Liu
  • , Chin Hung Liu
  • , Cai Fu Li
  • , Tae Kyoung Kim
  • , Sungho Jin
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • CAS - Institute of Metal Research
  • University of California at San Diego

Research output: Contribution to journalArticlepeer-review

Abstract

Brittle intermetallics such as Cu6Sn5 can be transformed into low cost, nonbrittle, superplastic and high temperature-resistant interconnection materials by sintering at temperatures more than 200°C lower than its bulk melting point. Confirmed via in situ TEM heating, the sintered structure is pore-free with nanograins, and the interface is super-uniform.

Original languageEnglish
Pages (from-to)4097-4103
Number of pages7
JournalSmall
Volume11
Issue number33
DOIs
StatePublished - 1 Sep 2015

Keywords

  • TEM
  • high temperature interconnection
  • intermetallics
  • nanoparticles
  • sintering

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