Evaluation of Mechanical Properties and Nano-Structure Analysis of Au-20Sn and Au-12Ge Solders
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- NISHIYAMA Tatsuya
- Aoyama Gakuin Univ.
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- OGAWA Takeshi
- Faculty of Sci. and Eng., Aoyama Gakuin Univ.
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- SAKAMOTO Hiroo
- Mitsubishi Electric Co., Advanced Tech. R & D Center
Bibliographic Information
- Other Title
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- Au‐20SnおよびAu‐12Geはんだの力学特性評価とナノレベル組織解析
- Au-20SnおよびAu-12Geはんだの力学特性評価とナノレベル組織解析
- Au 20 Sn オヨビ Au 12 Ge ハンダ ノ リキガク トクセイ ヒョウカ ト ナノレベル ソシキ カイセキ
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Description
Au alloys have great potentialities as solder joints of electronic packaging. However, studies on mechanical properties of Au solders, especially on creep properties, are very limited. Mechanical properties of Au-20Sn and Au-12Ge were measured by indentation tests ranging between nano and macro scales. First, macro indentation creep tests were carried out at various temperatures, i.e. 295K, 323K, 373K, 398K and 423K. It was found that the indentation creep deformation was observed at room temperature for Au-20Sn, while above 373K for Au-12Ge. Second, the indentation creep properties were measured for ζ and δ phases of Au-20Sn using a nano-indentation testing machine in order to investigate the influences of microstructure on the creep properties. Finally, we evaluated anisotropy of textured microstructure of Au-12Ge, where the dent shapes were distorted. This behavior was attributed to the three dimensional configurations, namely pile-up and sink-in. Based on the results of nano-indentation tests, numerical model for the microstructure of Au-12Ge was established and the mechanisms of the pile-up and sink-in were discussed.
Journal
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- Journal of the Society of Materials Science, Japan
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Journal of the Society of Materials Science, Japan 56 (10), 913-919, 2007
The Society of Materials Science, Japan
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Details 詳細情報について
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- CRID
- 1390001205419124096
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- NII Article ID
- 130002085983
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- NII Book ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- NDL BIB ID
- 8976728
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed