2011 Fiscal Year Final Research Report
Tin whisker growth mechanism in aerospace electronics and its mitigation
| Project/Area Number |
21246109
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Material processing/treatments
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| Research Institution | Osaka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KIM Keun-soo 大阪大学, 産業科学研究所, 助教 (90304857)
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| Research Collaborator |
NEMOTO Norio 独立行政法人宇宙航空研究開発機構, 安全信頼性推進部技術開発室, 技術領域リーダ
NAKAGAWA Tsuyoshi 日本アビオニクス株式会社, 情報システム事業部第二技術部, エキスパート
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| Project Period (FY) |
2009-04-01 – 2013-03-31
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| Keywords | 電気接続・配線 |
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| Research Abstract |
Tin whiskers is one of the serious issues for aeronautics and the growth mechanism has not been understood yet. In the present work, the influence of vacuum environment on whisker formation in thermal cycling was examined. It was found that whiskers grow thinner and longer in vacuum than in air and that oxidation of tin has great influence. The whisker growth mechanism not only in vacuum but also in air was clearly clarified.
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