The Growth Mechanism and Mitigation Method of Sn Whiskers

Oh, C . H .; Jung, Jae Sung; Ku, Ki-Young; Yoon, Young-Ho; Hwang, Un-Hee; Hong, Won Sik

doi:10.5781/kwjs.2011.29.4.365

Journal of Welding and Joining

2011

DOI: 10.5781/kwjs.2011.29.4.365

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The Growth Mechanism and Mitigation Method of Sn Whiskers

C . H . Oh¹,

Jae Sung Jung²,

Ki-Young Ku³

et al.

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Cited by 3 publications

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Effect of Air-HAST Conditions on Sn Whisker Growth

오¹,

오²,

김³

et al. 2019

Journal of Welding and Joining

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Sn whiskers are one of the major causes of failure in fine-pitch electronics because of the short distance between the leads in an electronic package. In various whisker mechanisms, it takes a long time to grow a whisker due to Sn corrosion because the temperature is limited to below 100℃ in high humidity. In the highly accelerated temperature and humidity stress test (HAST), the corrosion phenomenon rarely occurred because of the little air inside the chamber. Therefore, air is needed in the whisker accelerating test to meet the same whisker mechanism under high temperature and humidity conditions. In this study, an Air-HAST with air inputs in the chamber with highly temperature and humidity was introduced. Whisker growth was accelerated with temperatures at 130℃ and various air pressures using the thin quad flat package (TQFP) sample with Sn plating lead. The whisker growth in the Air-HAST, HAST, and high temperature and high humidity test (85℃, 85%R.H.) was compared by plotting each growth length and number of whiskers. The accelerated relationships of whisker growth under the various test conditions will help the electronic industry meet the short development cycles.

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Effect of Air-HAST Conditions on Sn Whisker Growth

오¹,

오²,

김³

et al. 2019

Journal of Welding and Joining

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Mitigation Methods of Sn Whisker Growth on Pure Sn Plating

Kim

2013

Journal of the Korean Welding and Joining Society

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Sn Whisker Research Trend in Japan

Kim

2012

Journal of the Microelectronics and Packaging Society

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The Growth Mechanism and Mitigation Method of Sn Whiskers

Cited by 3 publications

References 23 publications

Effect of Air-HAST Conditions on Sn Whisker Growth

Effect of Air-HAST Conditions on Sn Whisker Growth

Mitigation Methods of Sn Whisker Growth on Pure Sn Plating

Sn Whisker Research Trend in Japan

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