Effect of Sn Film Grain Size and Thickness on Kinetics of Spontaneous Sn Whisker Growth

Wen Chih Lin, Tsan Hsien Tseng, Wei Liu, Kuo Shuo Huang, Hao Chen, Hsin Yi Lee, Ching Shun Ku, Albert T. Wu

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The effects of the grain size and thickness of Sn films on the kinetics of spontaneous Sn whisker growth have been quantitatively analyzed separately. The results reveal that the length and diameter of the whiskers are related to the parameters of the Sn film. A thicker film has a stronger influence on the whisker morphology than does the grain size. When the biaxial stress in the film reached a steady state, the growth rate was dependent on the grain size and thickness of the film. An equation is proposed to calculate the spontaneous growth rate of Sn whiskers in correlation with the dimension and microstructure of the Sn film. Spontaneous Sn whisker growth can be suppressed by increasing the thickness and grain size of the film.

Original languageEnglish
Pages (from-to)3041-3048
Number of pages8
JournalJOM
Volume71
Issue number9
DOIs
StatePublished - 15 Sep 2019

Fingerprint

Dive into the research topics of 'Effect of Sn Film Grain Size and Thickness on Kinetics of Spontaneous Sn Whisker Growth'. Together they form a unique fingerprint.

Cite this