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赵宁
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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

电子邮箱: zhaoning@dlut.edu.cn

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A synchrotron radiation real-time in situ imaging study on the reverse polarity effect in Cu/Sn-9Zn/Cu interconnect during liquid solid electromigration

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论文类型: 期刊论文

发表时间: 2013-06-01

发表刊物: SCRIPTA MATERIALIA

收录刊物: SCIE、EI、Scopus

卷号: 68

期号: 11

页面范围: 853-856

ISSN号: 1359-6462

关键字: Reverse polarity effect; Cu/Sn-9Zn/Cu; Interfacial reaction; Effective charge number; Liquid solid electromigration

摘要: Synchrotron radiation real-time in situ imaging technology was used to study the interfacial reaction in Cu/Sn-9Zn/Cu interconnect during liquid solid electromigration. The reverse polarity effect, evidenced by the IMC layer at the cathode growing continuously while that at the anode was restrained, resulted from the directional migration of Zn atoms toward the cathode under electron current stressing, which is induced by the positive effective charge number of Zn atoms but not by the back-stress. The severe dissolution of Cu anode was explained theoretically. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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