Back-fill Sn flux against current-stressing at cathode micro Cu/Sn interface

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Title:	Back-fill Sn flux against current-stressing at cathode micro Cu/Sn interface
Authors:	劉正毓;Liu, C. Y.;Hsu, Y. C.;Hu, Y. J.;Huang, T. S.;Lu, C. T.;Wu, Albert T.
Contributors:	工學院化學工程與材料工程學系
Date:	2014-03-13
Issue Date:	2026-04-21 14:23:06 (UTC+8)
Publisher:	The Electrochemical Society
Abstract:	摘要： A back-fill Sn flow is reported against the current-stressing at Sn/Cu micro-joint interface. Upon current-stressing, as the cathode Cu6Sn5 compound is dissolving into adjacent Sn solder matrix, Cu in the dissolving Cu6Sn5 compound region would be highly-depleted, which would likely transform to highly-vacant Sn grains. Thus, a large Sn concentration gradient would be established between the highly-vacant Sn grains (dissolving Cu6Sn5 compound) and the Sn solder matrix, which causes Sn atoms diffusing into the newly-formed Sn grains. The driving force of the back-fill Sn flow was evaluated and, indeed, it can overcome the electromigration force. 其他題名： ECS Solid State Lett 出版者： The Electrochemical Society 出版日期： 2014-01-01 出處： ECS solid state letters, 2014-01, Vol.3 (2), p.P17-P19 版權： 2013 The Electrochemical Society 識別號： ISSN: 2162-8742 識別號： EISSN: 2162-8750 識別號： DOI: 10.1149/2.004402ssl
Appears in Collections:	[Department of Chemical and Materials Engineering] journal & Dissertation

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