Real time resistance monitoring during sintering of silver paste

JOURNAL OF ALLOYS AND COMPOUNDS

卷:731

Article

Xu, Di Erick¹  Kim, Jang Baeg^1,2  Hook, Michael David¹  Jung, Jae Pil²  Mayer, Michael¹ 

[1] Univ Waterloo, Microjoining Lab, Ctr Adv Mat Joining, Dept Mech & Mechatron Engn, Waterloo, ON N2L 3G1, Canada

[2] Univ Seoul, Microjoining & Semicond Packaging Lab, Dept Mat Sci & Engn, 90 JunNong Dong, Seoul 130743, South Korea

关键词: Silver sintering paste;    Non-destructive signals;    Sintering process;    Real time monitoring;   

DOI  :  10.1016/j.jallcom.2017.10.077

来源: Elsevier

【 摘 要 】

Real time resistance monitoring technology is used to study the silver sintering process. Signals of joint resistance show events such as resistance increase to >10 G Omega, abrupt resistance drop from >10 G Omega to <1 k Omega, and gradual resistance drop to < 1 m Omega. Based on cross-sectioning of samples at various stages of sintering and differential scanning calorimetry (DSC), we propose a correlation between resistance signal and solvent evaporation, capping agent degradation, and silver sintering. We identified distinct clusters of sintered silver of samples removed from the oven when the resistance drops to similar to 2.94 Omega. (C) 2017 Elsevier B.V. All rights reserved.

【 授权许可】

Free