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In this study, the reliabilities of low Ag SAC alloys doped with Mn or Ce (SACM or SACC) were evaluated under JEDEC drop, dynamic bending, thermal cycling, and cyclic bending test conditions against eutectic SnPb, SAC105, and SAC305 alloys. The Mn or Ce doped low cost SAC105 alloys achieved a higher drop test and dynamic bending test reliability than SAC105 and SAC305, and exceeded SnPb for some test...
In this study, the reliabilities of low Ag SAC alloys doped with Mn or Ce (SACM or SACC) were evaluated under JEDEC drop, dynamic bending, thermal cycling, and cyclic bending test conditions against eutectic SnPb, SAC105, and SAC305 alloys. The Mn or Ce doped low cost SAC105 alloys achieved a higher drop test and dynamic bending test reliability than SAC105 and SAC305, and exceeded SnPb for some test...
RoHS Directive for environmental and health concerns have resulted in significant activities to find substitutes for lead-contained solders for microelectronics. The potential candidates such as Sn-Ag1 and Sn-Ag-Cu1 eutectic solders with melting temperatures of 221degC and 217degC, respectively are the most prominent solders because of their excellent mechanical properties as compared with that of...
A study was conducted on BGA lead-free C5 solder joint system to compare SnAgNiCo versus conventional Sn3.8Ag0.7Cu solder alloy. This study showed that SnAgNiCo C5 solder system performed better than Sn3.8Ag0.7Cu in terms of joint strength and brittle mode failure. Shear and pull strength was measured by Dage which is representative of the intermetallic (IMC) strength between the C5 solder sphere...
This paper study Sn-Ag-Cu solder alloy compositions towards mechanical, surface elemental and thermal properties. Mechanical properties were evaluated by shear strength, while the solder surface oxide depth profile and melting properties were obtained by Auger and differential scanning calorimetry (DSC) respectively. Overall results indicates that Sn3.8AgO.7Cu having the most favorable results with...
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