Based on the technology of electromagnetic force driving and differential pressure control for producing solder balls

Uniform solder balls are widely used in 3D Printing and electronic packaging. Therefore, it needs a simple method for producing uniform solder balls at a higher quality. In this article, a novel and simple method was presented to produce uniform solder balls by the technology of electromagnetic forc...

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Bibliographic Details
Published in:Materials letters 2021-03, Vol.286, p.129236, Article 129236
Main Authors: Wang, Tongju, Lei, Yongping, Zhao, Peng, Lin, Jian, Fu, Hanguang
Format: Article
Language:English
Subjects:
Differential pressure
Electromagnetic forces
Electronic materials
Electronic packaging
Materials science
Metal forming and shaping
Production methods
Solders
Three dimensional printing
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Summary:Uniform solder balls are widely used in 3D Printing and electronic packaging. Therefore, it needs a simple method for producing uniform solder balls at a higher quality. In this article, a novel and simple method was presented to produce uniform solder balls by the technology of electromagnetic force driving and differential pressure control. The results indicated that the uniform solder balls of Sn-58Bi alloy could be produced by two different modes of differential pressure control. The solder balls with a spherical degree between 0 and 3% and diameter with a mean variation of 4% were produced at different diameter and reasonable test parameters.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2020.129236