eutectic Sn-Bi solder
Effect of Zn Addition on Interfacial Reactions Between Sn Bi Solder and Cu Substrate
... the eutectic Sn-Bi ...between Sn-Bi-Zn and the Cu substrate, ele- mental-mapping analysis was performed using EPMA and the results are shown in ...the Sn-Bi-Zn ...
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Effect of Strain Rate and Temperature on Micro Fatigue Crack Propagation of Bi Sn Eutectic Alloy
... Bi-42mass%Sn solder paste (Senju Metal Industry: L20- BLT5-T8F) was used in this ...The solder paste was spread in the groove made on a brass flat bar, and the solder was molten and ...
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Microstructure and Strength of Sn Bi Coated Sn 3 5 mass%Ag Solder Alloy
... A Sn-Pb solder, which has a low melting temperature and excellent wettability, has been used as the most effective solder material for ...for solder materials. 1) Much effort to find a ...
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Influence of Noble Metal Coating on Wettability of Copper Substrate by Sn Ag Eutectic Solder
... Pb-free solder is quite inferior to that of a Sn-Pb eutectic ...Pd/Ni, Sn, Sn-Ag and Sn-Bi, on the electrode surface of a printed wiring board (PWB) and electronic device ...
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Interfacial Reactions Between Sn 58 mass%Bi Eutectic Solder and (Cu, Electroless Ni P/Cu) Substrate
... metallcs. As shown in Fig. 5(a), the lower temperature data (70, 90 and 100 ◦ C) exhibited an apparent activation energy of 84.2 kJ/mol and the higher temperature data (100 and 120 ◦ C) had a value of 203.8 kJ/mol. ...
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Effect of Au addition on Microstructural and Mechanical Properties of Sn Cu Eutectic Solder
... reasons, Sn-based multi-component alloys with alloying ele- ments such as Ag, Bi, Zn and Cu are likely to be most promis- ...new solder sys- tems, one should consider various properties of the ...
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Vibration Fracture Behavior of Sn Bi Solder Alloys with Various Bi Contents
... the Sn-rich regions ...rod-like Bi precipitates, eutectic Bi and partially along the interfaces of eutectic Bi phase and the ...between eutectic Bi and Sn ...
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Interfacial Reaction and Mechanical Characterization of Eutectic Sn Zn/ENIG Solder Joints during Reflow and Aging
... the Sn–9Zn/ENIG joints aged at different ...of Sn–8Zn–3Bi solder balls (300 mm in diameter) on the Au/Ni–P/Cu layer during aging at 423 ...the Sn–Zn– Bi/Au/Ni–P/Cu joints exhibited bulk ...
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The Microstructure, Thermal Fatigue, and Failure Analysis of Near Ternary Eutectic Sn Ag Cu Solder Joints
... BGA solder joints To investigate the changes in mechanical properties of BGA solder joints, microhardness measurements were performed on the cross-sections of thermal-cycled ...of solder joints at a ...
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Effect of Antimony Additions on Corrosion and Mechanical Properties of Sn Bi Eutectic Lead Free Solder Alloy
... the Sn-Bi eutectic alloy are not still far away from the binary eutectic composition as shown in Figure ...these solder alloys because T L – T s < ...
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Sn Ag Based Solders Bonded to Ni P/Au Plating: Effects of Interfacial Structure on Joint Strength
... the eutectic Sn-Pb solder, which is commonly used, is environ- mentally harmful and can potentially affect human ...the eutectic Sn-Pb solder are the Sn-Ag based ...the ...
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Fatigue Reliability Evaluation for Sn Zn Bi and Sn Zn Lead Free Solder Joints
... The recent development of electric and electronic devices has been remarkable. Electric and electronic devices have spread into society in various forms such as audio-video equipment, household electric appliances, and ...
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Effect of Bismuth Addition on Structure and Mechanical Properties of Tin 9Zinc Soldering Alloy
... based solder is a possible replacement of Pb solder because of its better mechanical proper- ...usable solder alloy having better proper- ties. In this work eutectic Sn-9Zn and three ...
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Influence of Shear Height on Shear Strength of Tin Lead Solder Ball Bonding
... of eutectic Sn–37 mass%Pb ball bonding and Sn–36 mass%Pb–2 mass%Ag one have been carried out un- der the condition of two kinds of the shear height (Z = 0 µm and Z = 200 ...
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Thermodynamics Aided Alloy Design and Evaluation of Pb free Solders for High Temperature Applications
... off-eutectic Bi–5Ag. In Fig. 5(a), the distribution of Ag particles in the Bi matrix is ob- served clearly, and the primary Ag phase of the capital let- ter ‘H’ shape is observed in ...of ...
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Microstructural Evolution of Joint Interface between Eutectic 80Au 20Sn Solder and UBM
... the solder. Once the solder became molten, the Au layer dissolved and slightly increased the Au content in the liquid ...Au–Sn solder to have an off- eutectic composition, and it enabled ...
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1 Improved Reliability and Mechanical Performance of
... microstructure and properties of Sn-Bi-based solder alloy," Journal of Electronic Materials, vol. Jin, "Significantly improved mechanical properties of 271[r] ...
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Acoustic Microscopy of Interfacial Crack in Sn Ag Cu Alloy Solder Joints under Shear Fatigue Testing
... lead-free solder alloys and the constants A and m were measured for the mode I crack propagation, no reports on the mode II crack ...lead-free solder alloy 8) was used in the present ...
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Reliability of Sn 8 mass%Zn 3 mass%Bi Lead Free Solder and Zn Behavior
... 2.1 Experimental materials and soldering process The electronic part for this study was a QFP (Quad Flat Package) which has 208 pins with a 0.5 mm pitch. The QFP lead was copper and the surface was coated with ...
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Anomalous Creep in Sn Rich Solder Joints
... A primary cause of service failures in solder joints is ther- mal fatigue. When an electronic device is turned on or off, or its internal circuits are activated, the soldered joints are heated or cooled. The ...
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