4.7 Review

Recent advances in Sn-based lead-free solder interconnects for microelectronics packaging: Materials and technologies

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Article Acoustics

Microstructure evolution and grain refinement of ultrasonic-assisted soldering joint by using Ni foam reinforced Sn composite solder

Huang He et al.

Summary: Ultrasonic-assisted soldering with a Ni foam reinforced Sn composite solder at 260 degrees C in air resulted in high strength and high melting point Cu connections in 60 s. The addition of Ni foam effectively strengthened the Sn solder and refined the intermetallic compounds (IMCs) grains. Different IMCs were obtained with different porosities of Ni foam. The shear strength of the Cu/Ni60-Sn/Cu joint soldered for 60 s reached 86.9 MPa, with a high melting point and improved crack resistance.

ULTRASONICS SONOCHEMISTRY (2023)

Article Chemistry, Physical

Effectiveness of Dimple Microtextured Copper Substrate on Performance of Sn-0.7Cu Solder Alloy

Siti Faqihah Roduan et al.

Summary: This paper investigates the influence of a dimple-microtextured copper substrate on the performance of Sn-0.7Cu solder alloy. Dimples with a diameter of 50 μm were created by varying the laser scanning repetitions, while the spacing between the dimples was kept constant at 100 μm. The solder joints' wettability, microstructure, and growth of intermetallic compound (IMC) layer were analyzed to assess the impact of the dimple-microtextured copper substrate. Increasing the laser scan repetitions deepened the dimples, resulting in higher surface roughness. The solder joints exhibited decreased contact angle and increased IMC thickness with increasing dimple depth. The copper element was more evenly distributed in the dimple-microtextured copper substrate compared to the non-textured counterpart.

MATERIALS (2023)

Article Chemistry, Physical

Thermomigration suppression in Sn3.5Ag solder joints by hot-end FeCoNiMn alloy

Yu-An Shen et al.

Summary: Temperature gradient leads to thermomigration in solder joints, which greatly affects their reliability. This study investigates the thermomigration in Cu/Sn3.5Ag/FeCoNiMn solder joints at different temperatures and times. The results show the formation of a multielement intermetallic compound (MEIMC) at the joint interface, which is decomposed by thermomigration from the hot-end FCNM. However, a thickened MEIMC is observed due to rapid thermomigration flux from the hot-end Cu cap. This study suggests FCNM as a promising diffusion barrier for thermomigration in micro solder joints.

INTERMETALLICS (2023)

Article Engineering, Electrical & Electronic

Influences of rotating magnetic field on microstructure and properties of Sn-Ag-Cu-Sb-Ce solder alloy

Zilong Wang et al.

Summary: The influence of rotating magnetic field (RMF) on the microstructure and properties of Sn-1.0Ag-0.5Cu-0.5Sb-0.07Ce alloy was investigated. XRD, OM, SEM, EDS, DSC, and a universal mechanical testing machine were used to analyze the phase composition, grain size, shape, phase distribution, thermal characteristics, and mechanical properties of the solder. The results showed that RMF refined the size of beta-Sn, transformed the shape of IMCs, decreased layer spacing, slightly reduced the pasty range and melting point of solder, and enhanced its mechanical properties.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2023)

Article Chemistry, Physical

The influence of solder oxidation on low-temperature solid-state bonding based on Ni micro-nano cones

Yan Peng et al.

Summary: This paper explores the influence of solder oxidation on bonding based on Ni microcones and finds that solder can still achieve seamless connection with Ni microcones even when there is a thick oxide film on the solder surface. Local plastic deformation induced by microcone tips helps to rupture the oxide layer, thereby overcoming the influence of solder oxidation to a certain extent.

APPLIED SURFACE SCIENCE (2023)

Article Engineering, Electrical & Electronic

Investigating the physical, mechanical, and reliability study of high entropy alloy reinforced Sn-3.0Ag-0.5Cu solder using 1608 chip capacitor/ENIG joints

Sri Harini Rajendran et al.

Summary: This study investigates the properties of Sn3.5Ag0.5Cu (SAC 305) solder reinforced with high entropy alloy (HEA) particles, showing that the addition of HEA can significantly refine the grain size of the solder, reduce the melting point, and increase strength. After thermal shock testing, the solder with HEA added retained a high shear strength.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2022)

Article Engineering, Electrical & Electronic

Highly reliable Cu-Cu low temperature bonding using SAC305 solder with rGO interlayer

Xiang Yin et al.

Summary: This study inhibits the immoderate growth of intermetallic compounds (IMCs) by directly preparing a reduced graphene oxide (rGO) interlayer between copper and Sn-3.0 Ag-0.5 Cu (SAC305) solder, resulting in a highly reliable copper-copper bonding at low temperatures. The copper/rGO/solder bonding structure shows higher shear strength and lower contact resistance compared to the copper/solder bonding structure after aging.

MICROELECTRONICS RELIABILITY (2022)

Article Engineering, Multidisciplinary

Study on the floating kinetics of graphene in molten Sn-based alloy based on in-situ observation of X-ray radiography

Yuan Li et al.

Summary: In this study, the agglomeration and floating behavior of graphene nanosheets during soldering was investigated, and a transient current bonding technique was proposed to inhibit these phenomena.

COMPOSITES PART B-ENGINEERING (2022)

Review Materials Science, Multidisciplinary

A review on nanodispersed lead-free solders in electronics: synthesis, microstructure and intermetallic growth characteristics

Mekala Bharath Krupa Teja et al.

Summary: This review provides a comprehensive survey of lead-free solders, their fabrication routes, interfacial reactions, and mechanical properties, with a focus on the potential of nanoparticle-reinforced solders as alternatives and their impact on IMCs.

JOURNAL OF MATERIALS SCIENCE (2022)

Article Engineering, Electrical & Electronic

Interfacial microstructure evolution and shear strength of MWCNTs-reinforced Sn-1.0Ag-0.5Cu (SAC105) composite solder interconnects on plain Cu and ENIAg surface finish

T. T. Dele-Afolabi et al.

Summary: The combined effect of MWCNTs and ENIAg surface finish on the microstructure and shear strength of SAC105 solder was investigated. It was found that the addition of MWCNTs resulted in thinner interfacial IMC layer thickness and higher shear strength.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2022)

Article Chemistry, Physical

Effect of Kaolin Geopolymer Ceramics Addition on the Microstructure and Shear Strength of Sn-3.0Ag-0.5Cu Solder Joints during Multiple Reflow

Nur Syahirah Mohamad Zaimi et al.

Summary: This study investigates the effects of multiple reflow cycles on SAC305-KGC solder joints. The addition of KGC particles suppresses the growth of Cu6Sn5 IMCs and improves the shear strength. The growth direction of Cu6Sn5 IMCs in SAC305 changes with the addition of KGC.

MATERIALS (2022)

Article Materials Science, Multidisciplinary

Shear deformation behavior and failure mechanisms of graphene reinforced Sn-based solder joints bonded by transient current

Yuan Li et al.

Summary: This study investigates the deformation behavior and mechanisms of graphene nanosheets-reinforced composite solder joints. It is found that the addition of graphene can improve the shear strength of solder joints. The microstructure analysis and calculation suggest that load transfer is the dominant strengthening mechanism for the alloy.

MATERIALS & DESIGN (2022)

Article Chemistry, Physical

Diffusion Barrier Properties of the Intermetallic Compound Layers Formed in the Pt Nanoparticles Alloyed Sn-58Bi Solder Joints Reacted with ENIG and ENEPIG Surface Finishes

Hyeokgi Choi et al.

Summary: In the reaction between Pt nanoparticle-alloyed Sn-58Bi solders and ENIG and ENEPIG surface finishes, it is found that Sn-58Bi-0.05Pt/ENEPIG is the optimum combination for preventing the formation and diffusion of intermetallic compounds.

MATERIALS (2022)

Article Polymer Science

Microstructure and Shear Behaviour of Sn-3.0Ag-0.5Cu Composite Solder Pastes Enhanced by Epoxy Resin

Peng Zhang et al.

Summary: This paper developed novel epoxy-containing composite solder pastes and analyzed the effects of epoxy resin on their spreading performance, microstructure, and shear behavior. The research found that with the addition of epoxy resin, the solder pastes exhibited improved spreadability without altering the microstructure and interfacial morphology of the solder joints. The resin layers formed on the surface of the solder joints during the reflow process enhanced the shear properties.

POLYMERS (2022)

Article Materials Science, Multidisciplinary

Influence mechanism of Au layer thickness on wettability of Sn-Ag-Cu solder on heated ENIG pads

Jie Wang et al.

Summary: This study investigates the effect of Au layer thickness on the surface morphology, Ni distribution and wettability of Sn-3.0Ag-0.5Cu solder on heated Cu pads with ENIG finish. It is found that Ni diffuses from the Ni layer to the Au surface, reacting with the ambience to form Ni oxides, which inhibit the interfacial reaction and result in barren zones. The size of the barren zones decreases with increasing Au layer thickness.

VACUUM (2022)

Article Engineering, Industrial

Transient liquid phase bonding (TLPB) of Cu to Cu using Sn interconnect solder reinforced by submicron Al particles

Lei Sun et al.

Summary: This study investigates the effect of submicron Al particles on the properties and microstructure of Sn interconnect solder. The addition of submicron Al particles effectively restrains the growth of interfacial IMC, improves the wettability and mechanical properties of Sn interconnect solder. However, it has little effect on the melting characteristics. The spreading area, shear strength, and microhardness of Sn interconnect solder are significantly improved when 0.3 wt% submicron Al particles are added. Furthermore, the bonding strength of Sn-0.3Al interconnect solder is higher than that of Sn interconnect solder without submicron Al.

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY (2022)

Article Materials Science, Coatings & Films

Magnetron sputtering preparation of Cu6Sn5 preferred-orientation coating and its influence on wettability of Sn-based lead-free solder

Zhihang Zhang et al.

Summary: Cu6Sn5 preferred-orientation coatings were prepared on Cu substrates using magnetron sputtering, improving the wettability of Sn-based lead-free solder. The preferred-orientations of the coatings were influenced by sputtering power and substrate temperature. Sn-based lead-free solder exhibited better wettability on (40-2) and (132) Cu6Sn5 coatings, but poorer wettability on (351) Cu6Sn5 coating. Additionally, Sn-based lead-free solder reached wetting stabilized state fastest on (351) Cu6Sn5 coating.

SURFACE & COATINGS TECHNOLOGY (2022)

Article Materials Science, Ceramics

Highly porous metal organic framework derived NiO hollow spheres and flowers for oxygen evolution reaction and supercapacitors

B. Purusottam Reddy et al.

Summary: Porous NiO hollow spheres and flowers were successfully synthesized through solvothermal synthesis and heat treatment, exhibiting excellent supercapacitive performance and catalytic activity. The hollow spheres showed higher specific capacitance and lower overpotential compared to the flowers, with over 93% capacity retention after 5000 cycles.

CERAMICS INTERNATIONAL (2021)

Article Engineering, Manufacturing

The formation of intermetallic layer structure of SAC405/Cu and SAC405/ENImAg solder joint interfaces

Rabiatul Adawiyah Mohamed Anuar et al.

Summary: The study aimed to investigate the effects of different surface finishes on soldering and ageing process. The results showed that the ENImAg surface finish exhibited better performance in terms of shear strength and IMC layer thickness compared to bare Cu.

SOLDERING & SURFACE MOUNT TECHNOLOGY (2021)

Review Materials Science, Multidisciplinary

Materials modification of the lead-free solders incorporated with micro/nano-sized particles: A review

Mu-lan Li et al.

Summary: Researchers utilize nanoparticles to enhance the performance of solder joints, resulting in refined matrix, improved wetting ability, and strengthened mechanical performance of the solder. The size and content of particles influence the structure and properties of the solder, while nanoparticles impact melting temperature, wetting ability, creep behaviors, electromigration properties, etc.

MATERIALS & DESIGN (2021)

Article Engineering, Electrical & Electronic

Influence of porous Cu interlayer on the intermetallic compound layer and shear strength of MWCNT-reinforced SAC 305 composite solder joints

M. A. Azmah Hanim et al.

Summary: The study investigated the synergetic effect of multi-walled carbon nanotubes (MWCNTs) and porous Cu interlayer (PCI) on the intermetallic compound (IMC) formation and shear strength in the SAC 305 solder system. It was found that the presence of PCI inhibited IMC layer formation and enhanced the shear strength of the composite solder joints. The PCI material significantly improved the performance of the solder joints, particularly in the SAC-0.01CNT-xPCI series.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2021)

Article Engineering, Electrical & Electronic

Microstructure and mechanical behavior of SnBi-xAg and SnBi-xAg@P-Cu solder joints during isothermal aging

Yang Liu et al.

Summary: The addition of porous Cu improves the microstructure and hardness of the SnBi-xAg@P-Cu/Cu solder joints, leading to an increase in hardness and coarsening of the microstructure after aging. Among them, SnBi-0.4Ag@P-Cu/Cu shows the highest shear strength.

MICROELECTRONICS RELIABILITY (2021)

Article Engineering, Electrical & Electronic

Comparative study between the Sn-Ag-Cu/ENIG and Sn-Ag-Cu/ENEPIG solder joints under extreme temperature thermal shock

Ruyu Tian et al.

Summary: The study investigated the interfacial reactions, growth behavior of IMCs, and their effects on the mechanical properties of SAC305/ENEPIG and SAC305/ENIG solder joints under extreme temperature thermal shock. The results showed that the growth rate of IMCs in SAC305/ENEPIG joints was slower due to the inhibitory effect of the Pd(P) layer on the surface finish, resulting in higher shear force after thermal shock.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2021)

Article Engineering, Electrical & Electronic

Novel low Ag-content Sn-Ag-Cu-Sb-Al solder alloys with enhanced elastic compliance and plastic energy dissipation ability by applying rotating magnetic field

A. M. El-Taher et al.

Summary: This research investigates the impact of rotating magnetic field (RMF) on the physical properties of the SAC0505SbAl solder alloy, revealing that RMF can change the morphology, thermal properties, and significantly increase the ductility of the alloy. The findings of this study help fill the knowledge gap about the behavior of these recently developed solder alloys under the effect of RMF.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2021)

Article Chemistry, Physical

Self-Fluxing Mechanism in Geopolymerization for Low-Sintering Temperature of Ceramic

Noorina Hidayu Jamil et al.

Summary: The study utilized kaolin as a source of aluminosilicate materials for geopolymerization, with the addition of ground granulated blast furnace slag accelerating the process. Sintering at 900 degrees Celsius yielded the highest compressive strength in the prepared kaolin-GGBS geopolymer. The difference in X-ray absorption near edge structure spectra was associated with phases identified through X-ray diffraction analysis.

MATERIALS (2021)

Article Chemistry, Physical

Performance of Sn-3.0Ag-0.5Cu Composite Solder with Kaolin Geopolymer Ceramic Reinforcement on Microstructure and Mechanical Properties under Isothermal Ageing

Nur Syahirah Mohamad Zaimi et al.

Summary: This study investigated the effect of isothermal ageing on SAC305 solder with kaolin geopolymer ceramic reinforcement particles, showing that the addition of KGC improved the total thickness of the IMC layer. The growth and morphology of the IMC layer during ageing were controlled by bulk and grain-boundary diffusion processes, with higher activation energies observed for the total IMC layer and Cu3Sn IMC in the composite solder. Meanwhile, the SAC305-KGC composite solder exhibited higher shear strength than non-reinforced SAC305 solder, with a combination of brittle and ductile failure modes observed at higher ageing temperatures and times.

MATERIALS (2021)

Article Electrochemistry

Uniform lithium plating within 3D Cu foam enabled by Ag nanoparticles

Zi-Wei Zhu et al.

Summary: Lithium metal is considered the Holy Grail of anode materials for high-energy-density batteries, but its instability hinders its application, especially during the large-capacity lithium stripping/plating process. A dimensionally stable Li composite electrode fabricated by electrodepositing lithium on Ag-modified Cu foam shows improved stability and promotes uniform Li stripping/plating on the Cu skeleton. However, the interface stability of the Li composite electrode deteriorates with an increase in specific surface area.

ELECTROCHIMICA ACTA (2021)

Article Chemistry, Physical

Growth of the nano-phase intermetallic compounds and its effect on mechanical behavior of Au80Sn20/CrMnFeCoNi solder joints during isothermal aging

Xiao Liu et al.

Summary: The study investigated the microstructure and mechanical properties of aged Au80Sn20/CrMnFeCoNi solder joints. Results showed an increase in intermetallic compound thickness and size of Co3Fe7 nanoparticles with extended aging time, while Vickers hardness and shear strength continuously decreased.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

Review Surgery

The PRISMA 2020 statement: An updated guideline for reporting systematic reviews

Matthew J. Page et al.

Summary: The PRISMA 2020 statement, an updated version of the 2009 statement, includes new reporting guidance that reflects advances in research methods. This article introduces the PRISMA 2020 27-item checklist and related information.

INTERNATIONAL JOURNAL OF SURGERY (2021)

Article Engineering, Manufacturing

Study on the microstructure and mechanical property of Cu-foam modified Sn3.0Ag0.5Cu solder joints by ultrasonic-assisted soldering

Xiong Yi et al.

Summary: The study investigated the effects of Cu-foam sheets and ultrasound-assisted soldering time on the microstructure and mechanical properties of solder joints. Results showed that the grain refinement caused by ultrasonic cavitation significantly improved the shear strength of the solder joints, and changed the fracture behavior of solder joints.

JOURNAL OF MANUFACTURING PROCESSES (2021)

Article Chemistry, Physical

Extremely thin interlayer of multi-element intermetallic compound between Sn-based solders and FeCoNiMn high-entropy alloy

Yu-An Shen et al.

Summary: The study found that FCNM has better contact angles and diffusion rates with SAC305 and SB58, along with low dissolution rate and extremely thin interlayer, making it a promising material for diffusion barrier in three-dimensional integrated circuits with small solder volumes.

APPLIED SURFACE SCIENCE (2021)

Article Engineering, Electrical & Electronic

Pressure-assisted soldering of copper using porous metal-reinforced Sn58Bi solder

Yang Liu et al.

Summary: Porous metals (Ni, Cu) were added into SnBi solder joint to obtain composite solder joints, and the microstructure and shear behavior were investigated under different porosity conditions. The addition of porous metals significantly increased the shear strength of the SnBi solder joint, with the highest shear strength observed in SnBi@110P-Cu solder joint.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2021)

Article Nanoscience & Nanotechnology

Mechanical behaviors of lotus-type porous Cu/Cu joint soldered by Sn-3.0Ag-0.5Cu alloy

Sang-Wook Kim et al.

Summary: Porous Cu joints with cylindrical pore aligned in a single direction were successfully joined to Cu substrate using Sn-3.0Ag-0.5Cu solder. The joint strength of porous Cu joints was weaker but had higher ductility compared to non-porous Cu joints, being further enhanced under tensile mode. Additionally, energy absorption ability was improved in porous Cu joints, and the pore structure at joint interface played a role in delaying crack propagation.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2021)

Article Materials Science, Multidisciplinary

Shear analysis of rice husk ash (RHA) reinforced tin-0.7-copper composite solders on electroless nickel/immersion silver (ENIAg) surfacesScheranalyse von mit Reisschalenasche verstarktem Zinn (0,7)-Kupfer-Verbundlotwerkstoff auf chemisch Nickel/chemisch Silber (ENIAg)-Oberflachen

M. A. Azmah Hanim et al.

Summary: The mechanical performance of the rice husk ash-reinforced tin-0.7 copper composite solder was investigated in this study. The results showed that the inclusion of rice husk ash did not enhance the shear strength, with the plain solder exhibiting the highest shear strength.

MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK (2021)

Article Metallurgy & Metallurgical Engineering

Effect of transient current bonding on interfacial reaction in Ag-coated graphene Sn-Ag-Cu composite solder joints

Yong-dian Han et al.

Summary: The Cu/SAC/Ag-GNSs/Cu sandwich joints prepared under applied current density showed homogeneous dispersion of Ag-GNSs, providing more nucleation sites and refining grains, leading to enhanced shear strength and changes in fracture mechanism.

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA (2021)

Article Materials Science, Multidisciplinary

Improvement on the mechanical properties of eutectic Sn58Bi alloy with porous Cu addition during isothermal aging

Yang Liu et al.

Summary: The study compared the microstructure, interfacial IMC layer, shear behavior, and hardness of Sn58Bi, SnBi@110P-Cu/Cu, and SnBi@500P-Cu/Cu solder joints during isothermal aging. The addition of porous Cu can suppress void formation at the soldering interface and improve shear strength during aging, with SnBi@500P-Cu/Cu joints showing the highest shear strength before and after aging.

MATERIALS RESEARCH EXPRESS (2021)

Article Materials Science, Multidisciplinary

Progress on microstructure features and creep properties of prospective Tin-Silver-Zinc alloy using a magnetic field

A. E. Hammad et al.

Summary: The use of a rotating magnetic field (RMF) in the current work is shown to be an innovative method to improve microstructure features and creep resistance of the SAZ alloy. The results demonstrate that applying RMF does not change the composition of intermetallic compounds (IMCs), but it does lead to microstructure refinement and homogeneous distribution of IMCs in the alloy. Additionally, the RMF-treated SAZ alloy (SAZ-B) exhibits significantly improved creep resistance and longer creep rupture time compared to the untreated alloy, indicating potential for enhanced industrial performance.

MATERIALS RESEARCH EXPRESS (2021)

Article Materials Science, Multidisciplinary

Microstructural and shear strength properties of GNSs-reinforced Sn-1.0Ag-0.5Cu (SAC105) composite solder interconnects on plain Cu and ENIAg surface finish

K. Vidyatharran et al.

Summary: This study investigated the combined effect of graphene nanosheets (GNSs) and Electroless Nickel Immersion Silver (ENIAg) surface finish on the formation of intermetallic compounds (IMCs) and shear strength of the solder system. The addition of GNSs and ENIAg surface finish resulted in a significant reduction in the thickness of the interfacial IMC layer. The GNSs showed promising potential in enhancing the shear strength of the solder joints.

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T (2021)

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Inhibition of intermetallic compounds growth at Sn-58Bi/Cu interface bearing CuZnAl memory particles (2-6 μm)

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MATERIALS CHEMISTRY AND PHYSICS (2020)

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Ultrasonic bonding of 2024 Al alloy using Ni-foam/Sn composite solder at ambient temperature

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Influences of Ni addition into Cu-xNi alloy on the microstructure evolution and mechanical property of Sn-58Bi/Cu-xNi solder joint

Jinxuan Cheng et al.

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING (2020)

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Effects of nanoparticles on properties and interface reaction of Sn solder for microelectronic packaging

Meng Zhao et al.

INTERNATIONAL JOURNAL OF MODERN PHYSICS B (2020)

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Effect of addition of CuZnAl particle on the properties of Sn solder joint

Lei Sun et al.

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY (2020)

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Yang Liu et al.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2020)

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Microstructural and shear strength properties of RHA-reinforced Sn-0.7Cu composite solder joints on bare Cu and ENIAg surface finish

M. A. Azmah Hanim et al.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2020)

Article Materials Science, Multidisciplinary

Effect of porous Cu addition on the microstructure and mechanical properties of SnBi-xAg solder joints

Yang Liu et al.

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING (2020)

Article Engineering, Electrical & Electronic

Microstructure evolution and hardness of MWCNT-reinforced Sn-5Sb/Cu composite solder joints under different thermal aging conditions

T. T. Dele-Afolabi et al.

MICROELECTRONICS RELIABILITY (2020)

Article Engineering, Environmental

Synthesis of CuO@CoNi LDH on Cu foam for high-performance supercapacitors

Feng Chen et al.

CHEMICAL ENGINEERING JOURNAL (2020)

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Improvement of thermomigration resistance in lead-free Sn3.5Ag alloys by Ag interlayer

Yu-Fang Lin et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2020)

Article Materials Science, Multidisciplinary

The effect of cooling rate during multiple reflow soldering on intermetallic layer of Sn-4.0 Ag-0.5Cu/ENImAg

M. A. Rabiatul Adawiyah et al.

MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK (2019)

Article Materials Science, Multidisciplinary

Improved Reliability and Mechanical Performance of Ag Microalloyed Sn58Bi Solder Alloys

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METALS (2019)

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Peng Zhang et al.

APPLIED SCIENCES-BASEL (2019)

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Microstructures and properties of SnAgCu lead-free solders bearing CuZnAl particles

Meng Zhao et al.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2019)

Article Engineering, Electrical & Electronic

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Yue Su et al.

MICROELECTRONIC ENGINEERING (2019)

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Cu-Cu low temperature bonding based on lead-free solder with graphene interlayer

Wenhua Yang et al.

APPLIED PHYSICS LETTERS (2019)

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Advancement solidification microstructure and mechanical properties of Sn-2.0Ag-0.5Cu alloy by applying a rotary magnetic field

A. E. Hammad et al.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2019)

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SURFACE & COATINGS TECHNOLOGY (2019)

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Influences of Mono-Ni(P) and Dual-Cu/Ni(P) Plating on the Interfacial Microstructure Evolution of Solder Joints

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MATERIALS RESEARCH BULLETIN (2018)

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Influence of rotating magnetic field on solidification microstructure and tensile properties of Sn-Bi lead-free solders

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MICROELECTRONICS RELIABILITY (2018)

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A Modular Solder System with Hierarchical Morphology and Backward Compatibility

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Ultrasonic soldering of Cu alloy using Ni-foam/Sn composite interlayer

Yong Xiao et al.

ULTRASONICS SONOCHEMISTRY (2018)

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MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK (2017)

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Interfacial reaction between SAC305 lead-free solders and ENImAg surface finish and bare copper

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MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK (2017)

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