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Surface Mount Technology Association (SMTA) | https://www.smta.org/knowledge/proceedings_abstract.cfm?PROC_ID=5459
: Department of Physics, Binghamton University Date Published : 9/22/2019 Conference : SMTA International Abstract: Interest has been growing in Sn based solders containing Bi, including SnAgCu solder with up to three weight percent Bi, and in SAC/Sn57Bi1Ag mixed assemblies
Surface Mount Technology Association (SMTA) | https://www.smta.org/knowledge/proceedings_abstract.cfm?PROC_ID=5052
) as a result of the coarsening of intermetallic phases over time. Recent studies have shown that the addition of bismuth (Bi) to the alloy results in superior performance over SAC and Sn-Pb in accelerated thermal cycling (ATC
Surface Mount Technology Association (SMTA) | https://www.smta.org/knowledge/proceedings_abstract.cfm?PROC_ID=5296
performance under drop, shock and vibration loading conditions. Although SnAgCu (SAC) Pb-free solder alloys typically have better fatigue life than traditional eutectic SnPb solder, their fatigue reliability is limited at higher operating temperatures
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2018/07/last-will-of-bga-void.pdf
] Investigation Specifics: Variety of BGAs and CSPs, daisy chained, various solder ball diameters SnPb and SAC solder pastes Test vehicle one: 2.36mm thick (93 mil), FR-4, 6 internal planes
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2022/04/last-will-of-bga-void-1.pdf
] Investigation Specifics: Variety of BGAs and CSPs, daisy chained, various solder ball diameters SnPb and SAC solder pastes Test vehicle one: 2.36mm thick (93 mil), FR-4, 6 internal planes
| https://www.eptac.com/faqs/ask-helena-leo/ask/solder-selection-for-printed-circuit-boards-and-terminals
. The alloys of SAC 305 and Sn100C will work together so mixing of those two should not be a problem. The concern, however; is the flux and can it be removed after the replacement of the component
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