Mechanism modeling and prediction of Ag electrochemical migration failure in ultra-thin liquid film

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2025-09-08 DOI:10.1016/j.corsci.2025.113309

Jing Liu , Yabin Jing , Ran Wei , Jingjing Peng , Xian Zhang , Lin Cheng , Tao Zhang

引用次数: 0

Abstract

This study established a mechanistic model for the prediction of electrochemical migration (ECM) failure time of Ag electrode in a thin liquid film, based on electrode kinetics and diffusion dynamics. The dendrite growth processes of Ag under various bias voltages, liquid film thicknesses and Cl^- concentrations were investigated. The ECM model was validated against experimental data, demonstrating the reliability of this model. Under actual packaging technology where experimental precision is insufficient (film thickness lower than 10 μm), model-based extrapolation reveals that migration resistance becomes the dominant determinant instead of volume effect, leading to a pronounced extension of ECM failure time.

查看原文本刊更多论文

超薄液膜中银电化学迁移失效机理建模与预测

本研究建立了基于电极动力学和扩散动力学的银电极在液膜中电化学迁移失效时间预测的机理模型。研究了银在不同偏置电压、液膜厚度和Cl-浓度下的枝晶生长过程。利用实验数据对模型进行了验证，验证了模型的可靠性。在实验精度不足（膜厚小于10 μm）的实际封装技术中，基于模型的外推表明，迁移阻力取代体积效应成为主要决定因素，导致ECM失效时间明显延长。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

期刊介绍： Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies. This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.