Electromigration and thermomigration in Pb-free flip-chip solder joints

C Chen, HM Tong, KN Tu - Annual Review of Materials …, 2010 - annualreviews.org
Pb-free solders have replaced Pb-containing SnPb solders in the electronic packaging
industry due to environmental concerns. Both electromigration (EM) and thermomigration …

Development of SnAg-based lead free solders in electronics packaging

L Zhang, C He, Y Guo, J Han, Y Zhang… - Microelectronics …, 2012 - Elsevier
Lead free solder alloys for electronic assembly is being driven by environmental and health
concerns regarding toxicity of lead and, more importantly, by the perceived economic …

Investigation of diffusion and electromigration parameters for Cu–Sn intermetallic compounds in Pb-free solders using simulated annealing

B Chao, SH Chae, X Zhang, KH Lu, J Im, PS Ho - Acta Materialia, 2007 - Elsevier
An efficient numerical method was developed to extract the diffusion and electromigration
parameters for multi-phase intermetallic compounds (IMC) formed as a result of material …

Role of diffusion anisotropy in β-Sn in microstructural evolution of Sn-3.0 Ag-0.5 Cu flip chip bumps undergoing electromigration

ML Huang, JF Zhao, ZJ Zhang, N Zhao - Acta Materialia, 2015 - Elsevier
The anisotropy of β-Sn grain is becoming the most crucial factor to dominate the
electromigration (EM) behavior with the downsizing of solder bumps. When the c-axis of β …

On the root cause of Kirkendall voiding in Cu3Sn

L Yin, P Borgesen - Journal of Materials Research, 2011 - cambridge.org
Soldering to Cu interconnect pads with Sn-containing alloys usually leads to the formation of
a layered Cu3Sn/Cu6Sn5 structure on the pad/solder interface. Frequently, microscopic …

A new failure mechanism of electromigration by surface diffusion of Sn on Ni and Cu metallization in microbumps

YW Chang, C Hu, HY Peng, YC Liang, C Chen… - Scientific reports, 2018 - nature.com
Microbumps in three-dimensional integrated circuit now becomes essential technology to
reach higher packaging density. However, the small volume of microbumps dramatically …

[HTML][HTML] Coupling model of electromigration and experimental verification–Part I: Effect of atomic concentration gradient

Z Cui, X Fan, Y Zhang, S Vollebregt, J Fan… - Journal of the Mechanics …, 2023 - Elsevier
This paper presented integrated electromigration (EM) studies through experiment, theory,
and simulation. First, extensive EM tests were performed using Blech and standard wafer …

Recent advances on kinetic analysis of electromigration enhanced intermetallic growth and damage formation in Pb-free solder joints

BHL Chao, X Zhang, SH Chae, PS Ho - Microelectronics Reliability, 2009 - Elsevier
A comprehensive kinetic analysis was established to investigate the electromigration (EM)
enhanced intermetallic compound (IMC) growth and void formation for Sn-based Pb-free …

[HTML][HTML] Thermomigration induced microstructure and property changes in Sn-58Bi solders

YA Shen, S Zhou, J Li, KN Tu, H Nishikawa - Materials & Design, 2019 - Elsevier
Thermomigration (TM) has become a critical reliability issue in advanced electronic
packaging because of Joule heating. A temperature gradient is required to conduct heat …

Nucleation and Location of Kirkendall Voids at the Tin‐Based Solder/Copper Joint: A Review

MK Pal, V Bajaj - Advanced Engineering Materials, 2023 - Wiley Online Library
Void nucleation is a critical issue in wetting because it negatively impacts the solder joint
and diminishes its electrical and mechanical properties. Generally, the Kirkendall effect …