Sn-Ag-Pb solder joints
Effect of Addition of Small Amount of Zinc on Microstructural Evolution and Thermal Shock Behavior in Low Ag Sn Ag Cu Solder Joints during Thermal Cycling
... as Pb-free solders by the Japan Electronics and Information Technology Industries Association ...The solder billets were initially produced by the ingot casting ...
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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 ...
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Transmission Electron Microscopy of Interfaces in Joints between Pb Free Solders and Electroless Ni P*
... a solder joint of Sn–Ag–Cu–Bi/ Ni–P, at a low magnification, and concentration profiles of P, Ni, Cu, Ag, Bi and Sn, obtained at points 1–16 by EDX analysis, across the joint, ...5–8), ...
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Effects of Thermal Storage and Cu Addition on Adhesive Strength and Microstructure of Sn 3 0 mass% Ag 1 5 mass% Sb xCu Solder Joints
... now recognized as hazardous materials and having a severely detrimental effect on the human body and the environment. As a consequence, an increasing number of countries have passed laws to eliminate the use of ...
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Effect of Isothermal Aging on Ball Shear Strength in BGA Joints with Sn 3 5Ag 0 75Cu Solder
... Sn intermetallics caused embrittlement in BGA joints. How- ever, Au was not found remaining at the interface of the BGA pad and solder ball due to the limited spatial resolution of the SEM. A ...
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The Microstructure, Thermal Fatigue, and Failure Analysis of Near Ternary Eutectic Sn Ag Cu Solder Joints
... to Pb-free soldering in the near ...candidate Pb-free solders are near-ternary eutectic Sn-Ag-Cu ...eutectic Sn-Ag-Cu alloys has been reported in terms of the formation of large ...
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Improvement of Joint Reliability of Sn Ag Cu Solder Bumps on Cu by a Laser Process
... Currently, Sn-Ag-Cu solders such as ...industry. Sn-Ag-Cu solders are generally harder and less ductile than lead-containing solders like ...of Sn-Ag-Cu solders is their high ...
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Study on Sn Ag Oxidation and Feasibility of Room Temperature Bonding of Sn Ag Cu Solder
... lead-free solder joints in flip chip packaging. 3,4) Sn-based alloys with Ag and Cu, with higher eutectic melting points (217–227 C) than that of Sn–Pb (183 C), become the ...
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Acoustic Microscopy of Interfacial Crack in Sn Ag Cu Alloy Solder Joints under Shear Fatigue Testing
... lead, solder materials for electronic products have been replaced from Pb-Sn alloys to lead-free ...the solder joints, and finally to result in ...lead-free solder 1–13) and ...
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Properties of Solder Joints Using Sn Ag Bi In Solder
... Sn-3.5Ag-0.5Bi-3In, Sn-3Ag-2.5Bi-2.5In, Sn-3.5Ag-0.5Bi-8In, and Sn-8Zn-3Bi, with Sn-37Pb used as the reference solder(all compositions are expressed in mass ...Each solder ...
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BGA Jointing Property of Sn 8 8 mass%Zn and Sn 8 0 mass%Zn 3 0 mass%Bi Solder on Electroless Nickel Phosphorus/Immersion Gold Plated Substrates*
... of Sn–37Pb jointed on Au/Ni–P deposit decreased with increasing phosphorus content contained within Ni–P depos- it, the results of joint strengths for ...both solder alloys to estimate effect of Au thickness ...
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Pb-Free High Temperature Solder Joints for Power Semiconductor Devices
... Furthermore, nano indentation analysis was carried out to measure the hardness of the CuSn alloy. A maximum 500 μ N force at the rate of 100 μ N/s was applied to the joint, and the displacements were measured several ...
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Built in reliability design of highly integrated solid state power switches with metal bump interconnects
... Metal bumps (or posts) may be formed using double etching and electro-plating and joined using bonding technology [8]-[12]. Haque et al. [8] used Cu brick posts and soldering technology to develop a metal posts ...
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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
... layer still remains in the sample, the void formation is not attributed to Ni consumption. Under the conditions in which the voids formed, Ni atom supply was limited due to diffusion through thick IMC. Therefore, ...
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Influence of Noble Metal Coating on Wettability of Copper Substrate by Sn Ag Eutectic Solder
... molten solder surface which possesses a specular ...molten solder surface, and the reflection is recorded with a CCD ...molten solder fillet surface. Consequently, the direction angle of the ...
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Microstructure and Strength of Sn Bi Coated Sn 3 5 mass%Ag Solder Alloy
... alloys have comparable wettability and thermo-mechanical reliability and are considered to be possible candidates for applying the soldering process in electronics. However, these solder alloys have higher melting ...
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Reactivity between Sn Ag Solder and Au/Ni Co Plating to Form Intermetallic Phases
... of joints since the maximum thickness was only 10 ...containing joints (see dot line in ...the joints with Au than those without ...of joints is caused not by growth of interfacial reaction ...
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Fatigue Reliability Evaluation for Sn Zn Bi and Sn Zn Lead Free Solder Joints
... of Pb as solder material has been ...of Pb and whether Pb should be removed from solder ...of Pb, especially in European countries and ...replacing Sn–Pb eutectic ...
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Development of Sn Based, Low Melting Temperature Pb Free Solder Alloys
... variable and lnðtÞ and (1=T ) as the independent variables; the coefficients were lnðAÞ, n, and H=R. The kinetics param- eters A, n, and H are listed in Table 5, along with those of other high-Sn, Pb-free ...
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Cu6Sn5 Whiskers Precipitated in Sn3.0Ag0.5Cu/Cu Interconnection in Concentrator Silicon Solar Cells Solder Layer
... SnAgCu solder assembly than with SnPb eutectic alloy ...SnPb solder joints, the lead-free SnAgCu generally scored better than SnPb for QFN (Quad Flat No-lead Package) thanks to the lower creep strain ...
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