標題: | Thermomigration of Ti in flip-chip solder joints |
作者: | Chen, Hsiao-Yun Lin, Han-Wen Liu, Chien-Min Chang, Yuan-Wei Huang, Annie T. Chen, Chih 材料科學與工程學系 Department of Materials Science and Engineering |
關鍵字: | Diffusion;Intermetallic compounds;Soldering;Titanium |
公開日期: | 1-五月-2012 |
摘要: | Titanium has a very large heat of transport value of -768 kJ mol(-1). However, thermomigration of Ti in solder joints has not been examined. In this study, void formation was observed in non-current-stressed Al traces during electromigration and thermomigration tests of SnAg solder joints. Voids formed inside the traces located above the solder bumps with no current flow. We found that Ti thermomigration occurred in the joint, resulting in the reaction of Al and Cu, leaving voids behind in the Al trace. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
URI: | http://hdl.handle.net/11536/16015 |
ISSN: | 1359-6462 |
期刊: | SCRIPTA MATERIALIA |
Volume: | 66 |
Issue: | 9 |
結束頁: | 694 |
顯示於類別: | 期刊論文 |