Anisotropy-induced reliability issues and grain orientation control in Sn-based micro solder joints for advanced packaging

Y Qiao, N Zhao - Journal of Materials Science & Technology, 2024 - Elsevier
Technological advancements and the emphasis on reducing the use of hazardous
materials, such as Pb, have led to the widely use of Sn-based Pb-free solder in advanced …

[HTML][HTML] Understanding the deformation creep and role of intermetallic compound-microstructure in Sn-Ag-Cu solders

T Gu, Y Xu, CM Gourlay, FPE Dunne… - Materials Science and …, 2024 - Elsevier
Tin-based alloys are commonly used in lead-free solder joints in electronic interconnection
applications, where creep can limit joint reliability. In this work, directionally solidified bulk …

Misorientations and subgrains in Sn-Ag and Sn-Ag-Cu solder balls after solidification

S Sun, J **an, CL Hsieh, CM Gourlay - Journal of Electronic Materials, 2024 - Springer
Subgrains and recrystallisation are common microstructural features in solder joints that
have been subjected to thermal fatigue or mechanical loading. Here we study similar …

[HTML][HTML] Combined effect of Ag element and temperature gradient on the formation of highly orientated Sn grains in micro solder joints

Y Qiao, T Hao, Y Lai, H Liang, N Zhao - Journal of Materials Research and …, 2024 - Elsevier
Sn–Ag solders are widely used for advanced electronic packaging. The combined effect of
Ag element and temperature gradient (TG) on the formation of Sn grains in Cu/Sn-xAg/Cu …

Effective preparation of low-melting solder materials for atom probe tomography

C Cui, M Tkadletz, M Reisinger, P Imrich, W Hartner… - Scientific Reports, 2024 - nature.com
Low-melting metal alloys have gained renewed attention for additive manufacturing, energy
storage and microelectronics. However, micro-and nanostructure characterisation demands …

Experimental and damage-coupled crystal plasticity constitutive study for solder ball under shear tests

L Liu, H Yu, Y Li, Z He, S Huang, Z Cai, X He… - Engineering Fracture …, 2025 - Elsevier
The experimental and multi-scale numerical investigation for solder ball under shear loads
is studied in the present work. Shear tests are conducted on Sn-1.0 Ag-0.5 Cu solder balls at …

Deformation behavior study of SAC305 solder joints under shear and tensile loading by crystal plasticity finite element method

Q Zhu, Z Huang, H Qian, J Wang, Z Shen… - Microelectronics Journal, 2024 - Elsevier
Micro solder joints experience various loads during operation, and the failure of a single
micro solder joint can impact the overall reliability of the entire microsystem. This study …

Dendrite Growth in Single-Grain and Cyclic-Twinned Sn–3Ag–0.5 Cu Solder Joints

S Sun, CM Gourlay - Metallurgical and Materials Transactions A, 2024 - Springer
The microstructure of electronic solder joints is generated by the solidification of a small
volume of bulk undercooled liquid. Here, we study β-Sn dendrite growth in Sn–3Ag–0.5 Cu …

[HTML][HTML] Intermetallic compound layer and fatigue crack evolution of Bi-contained Sn-1.0 Ag-0.5 Cu solder under thermal aging and thermal fatigue

J Zhao, J Wu, J Zhang, M Liao, F Wang - Journal of Materials Research and …, 2025 - Elsevier
Abstract The Sn-1.0 Ag-0.5 Cu-xBi solder joints with different Bi content were prepared by
reflow soldering. The shear strength, intermetallic compound layer, and fatigue evolution in …

The effect of different metal pad sizes on shear stress in solder ball bonding

K Kim, Y Kim, S Kang, TH Park - Journal of Materials Science: Materials in …, 2025 - Springer
The reliability and performance of solder ball joints are critical factors affecting the durability
and functionality of electronic parts. This study investigates the relationship between metal …