Sn-Ag solder/Ni interface
Melting and Joining Behavior of Sn/Ag and Sn Ag/Sn Bi Plating on Cu Core Ball
... Cu-core solder balls exhibited shear strength comparable to those using previously alloyed solder ever, fractures began to occur at the joint interface for SB-SA joints due to thermal ...joint ...
7
Sn Ag Based Solders Bonded to Ni P/Au Plating: Effects of Interfacial Structure on Joint Strength
... eutectic Sn-Pb solder, which is commonly used, is environ- mentally harmful and can potentially affect human ...eutectic Sn-Pb solder are the Sn-Ag based ...eutectic Sn-Pb ...
9
Reliability of Solder Joint with Sn Ag Cu Ni Ge Lead Free Alloy under Heat Exposure Conditions
... the solder ball joints shown in ...joint interface are refined, those located at some distance from the joint interface are dendritic in the all ...joint interface, the electrode material is ...
8
Flip Chip Bump Formation of Sn 1 8Bi 0 8Cu 0 6In Solder by Stencil Printing
... of solder paste, ...investigated. Sn–3.5%Ag, Sn–37%Pb and Sn–36%Pb–2%Ag were selected as references for the ...The solder pastes were printed on the under bump ...
7
Growth Kinetics of Reaction Layers in Flip Chip Joints with Cu cored Lead free Solder Balls
... Cu-cored Sn-5 mass%Ag balls was ...of Ni coating over the Cu core was investigated on the microstructures of flip chip joints with Ni/Au plated Cu pads after reflow soldering and the subsequent ...
5
The Influence of Phosphorus Concentration of Electroless Plated Ni P Film on Interfacial Structures in the Joints between Sn Ag Solder and Ni P Alloy Film
... The interface structure between Sn–3Ag solder and electroless plated Ni film and the structure near that interface were ...electroless Ni films contained ...joining ...
5
Impact Properties of Lead Free Sn Ag Cu Ni Ge Solder Joint with Cu Electrode
... the Sn-Ag-Cu-Ni-Ge joints have relatively excellent impact properties compared with SA and SAC joints (shown in ...the Sn-Ag-Cu-Ni- Ge joints, the main fracture mode is ...
5
Effect of Isothermal Aging on Ball Shear Strength in BGA Joints with Sn 3 5Ag 0 75Cu Solder
... the interface of the BGA pad and solder ball due to the limited spatial resolution of the ...favors Sn–Ag–Cu solder over Sn–Pb ...
6
Effect of Ni or Co Addition to Sn Ag Solder on Microstructure and Joint Strength at Interface
... binary Sn-3.5 mass%Ag solder was used as the basic solder and ...and Sn-3.5 mass%Ag-0.3 mass%Co were specially prepared as the solder added minor ...electroless ...
6
Influence of Phosphorus Concentration in Electroless Plated Ni P Alloy Film on Interfacial Structures and Strength between Sn Ag ( Cu) Solder and Plated Ni P Alloy Film
... that Sn–Ag solder remained on the fractured surface of the BGA substrate ...joining interface between the solder and the plated Ni–P alloy film is ...considerable ...
7
Influence of Noble Metal Coating on Wettability of Copper Substrate by Sn Ag Eutectic Solder
... water and then air dried. In addition, the wettabilities of pure Au (99.99%), Ag (99.99%) and Pd (99.95%) substrates, having a size of 10 30 0:3 mm 3 , were also investigated for the comparison with those of the ...
7
Thermodynamics Aided Alloy Design and Evaluation of Pb free Solders for High Temperature Applications
... of Sn–Sb, Bi–Ag and Au–Sn–Sb alloys were selected to replace the Pb–5Sn solder for step soldering used in MCM and they were investigated in terms of melting be- havior, electrical resistivity, ...
6
Effects of Electrical Current on Microstructure and Interface Properties of Sn Ag Cu/Ag Photovoltaic Ribbons
... SnPb solder to lead-free solder was common goal for the electronic packing and the solder ...lead-free solder materials, the Sn-based solder alloys (SnAg, SnZn, SnCu, ...
5
Comparison between SAC405 lead free solders and EN(P)EPIG and EN(B)EPIG surface finishes
... insert Ni-based metallization layer between the solder and the Cu conducting ...approach, Ni-based insertion serves as a diffusion barrier, because the Ni-Sn reaction is two orders ...
5
Improvement of Joint Reliability of Sn Ag Cu Solder Bumps on Cu by a Laser Process
... the interface were extremely refined, and a large number of grain boundaries between IMCs ...the interface of the joints soldered by the laser process, and the maximum load of the joints soldered by the ...
5
Joints Soldered on Electroless Ni Au Surfaces Using Cu Containing Flux: Strength, Microstructure and Mechanism of Improvement
... of Sn–4.0Ag–0.5Cu solder ball joints, the comparison of intermetallic microstructure was made by SEM ...the solder, finally leaving the interfacial intermetallic ...of Ni into the ...
6
Effect of Corrosion on Mechanical Reliability of Sn Ag Flip Chip Solder Joint
... Another interesting feature to note from this study is that the corrosion location will impact the required shear strength. The top-side corroded bump did not significantly affect the shear strength of the ...
6
The Effects of Microstructure and Ag3Sn and Cu6Sn5 Intermetallics on the Electrochemical Behavior of Sn-Ag and Sn-Cu Solder Alloys
... The macrostructures of the Sn-2%Ag and Sn-2.8%Cu alloys were characterized by columnar grains and equiaxed grains along the castings lengths, respectively, as shown in Fig. 1(b) and (c). It is ...
17
Microstructure and Strength of Sn Bi Coated Sn 3 5 mass%Ag Solder Alloy
... of Sn-Bi coated solder ball The Sn-Bi layer was electroplated on the ...mass%Ag solder ball to evaluate the possibility of applying the Sn-Bi coated ...mass%Ag ...
7
IMC Growth of Solid State Reaction between Ni UBM and Sn 3Ag 0 5Cu and Sn 3 5Ag Solder Bump Using Ball Place Bumping Method during Aging
... popular, Ni-based under bump metallization (UBM) has attracted attention in recent years because of their slower reaction rate than traditional Cu-based ...lead-free solder bumps and Ni-based ...
8