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. Figure 1 illustrates Aspandiar’s solder joint void classifications. Figure 1. Solder Joint Void Classifications [4] The following sections summarize published literature on the impact of voids in BGA solder joints found during the authors’ literature review. Study #1: D. Banks et al
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. Solder Joint Void Classifications [3] Figure 2a. Locations within a BGA solder joint where voids are expected to have a greater risk on joint reliability [3]. mailto:richard.coyle@nokia-bell-labs.com mailto:david.hillman
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2022/04/Vacuum-Void-Reduction-Reflow-1.pdf
. Solder Joint Void Classifications [3] Figure 2a. Locations within a BGA solder joint where voids are expected to have a greater risk on joint reliability [3]. mailto:richard.coyle@nokia-bell-labs.com mailto:david.hillman
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. Solder Joint Void Classifications [3] Figure 2a. Locations within a BGA solder joint where voids are expected to have a greater risk on joint reliability [3]. mailto:richard.coyle@nokia-bell-labs.com mailto:david.hillman
Heller Industries Inc. | https://hellerindustries.com/bit_publications/reflow-techniques-for-void-reduction/
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ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/efd/resource-center/solder-selection-guide
C or more above the liquidus. If a solder joint needs to retain physical integrity during a later operation, such as a second reflow process, the peak temperature of the later operation needs to be below the solidus temperature of the alloy
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/efd/resources/solder-selection-guide
Assembly Process Implementation for BGAs. The inspection criteria for Ball Grid Array (BGA) and MicroBGA often call for voiding under 20%. A low-void solder paste is required to meet the very low-voiding limits for Class 3 assemblies. UV-traceable flux
| https://www.eptac.com/blog/are-voids-in-solder-joints-really-an-issue
“The Last Will and Testament of the BGA Void” by Dave Hillman, Dave Adams, Tim Pearson, Brad Williams, Brittany Petrick, Ross Wilcoxon, Dr
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