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Synthesis of Sn-3.5Ag nanoparticles of tiny sizes

  • Harbin Institute of Technology

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

Abstract

Sn-3.5Ag nanosolder in tiny sizes can provide a practical way to solve the high soldering temperature problem of lead-free solder alloy in fine pitch interconnectivity owing to the unique nanosize effect and meantime stand a higher working temperature just as the bulk material after welding. In this paper, a simple approach to synthesis Sn-3.5Ag nanoparticles by chemical reduction at room temperature is reported and sorts of influencing factors in both size and quality aspects, such as injection rate of the precursor solution/reduction solution, drying temperature, types and volume of solvent, are discussed. To prevent the formation of tin oxide, a reliably capping agent, polyvinylpyrrolidone (PVP), was added into liquid reaction mixture under vigorous stirring instead of blowing any protecting gas. The sizes of as-prepared Sn-3.5Ag can achieve several nanometers without oxidized.

Original languageEnglish
Title of host publication2014 15th International Conference on Electronic Packaging Technology, ICEPT 2014
EditorsKeyun Bi, Zhong Tian, Ziqiang Xu
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1499-1501
Number of pages3
ISBN (Electronic)9781479947072
DOIs
StatePublished - 13 Oct 2014
Event2014 15th International Conference on Electronic Packaging Technology, ICEPT 2014 - Chengdu, China
Duration: 12 Aug 201415 Aug 2014

Publication series

NameProceedings of the Electronic Packaging Technology Conference, EPTC

Conference

Conference2014 15th International Conference on Electronic Packaging Technology, ICEPT 2014
Country/TerritoryChina
CityChengdu
Period12/08/1415/08/14

Keywords

  • Sn-3.5Ag nanoparticles
  • injection style
  • polyol method
  • solvent
  • temperature

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