|
个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：材料科学与工程学院副院长
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：材料科学与工程学院
学科：材料学
办公地点：知远楼B515(新材料大楼)
电子邮箱：zhaoning@dlut.edu.cn
Synchrotron radiation real-time in situ study on dissolution and precipitation of Ag3Sn plates in sub-50 mu m Sn-Ag-Cu solder bumps
点击次数：
论文类型：期刊论文
发表时间：2014-07-25
发表刊物：JOURNAL OF ALLOYS AND COMPOUNDS
收录刊物：SCIE、EI、Scopus
卷号：602
页面范围：281-284
ISSN号：0925-8388
关键字：Intermetallics; Crystal growth; Synchrotron radiation; Ag3Sn; Undercooling; Precipitation
摘要：Synchrotron radiation real-time imaging technology was used to in situ study the dissolution and precipitation behavior of Ag3Sn plates in sub-50 mu m Sn-4.0Ag-0.5Cu flip chip solder bumps on Ni-P under bump metallization (UBM). The dissolution rate of large Ag3Sn plates was as slow as 0.1-0.2 mu m/s at the heating stage, while the precipitation rate exceeded 5 mu m/s at the cooling stage with an undercooling of 31-55 degrees C. The random precipitation behavior of Ag3Sn plates was in situ observed and explained from the perspective of cluster. This study shows an effective method to investigate the microstructural evolution and the undercooling of phases in real ultra-fine solder joints. (C) 2014 Elsevier B. V. All rights reserved.