Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2018/07/last-will-of-bga-void.pdf
. 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
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2022/04/last-will-of-bga-void-1.pdf
. 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
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2022/06/Optimizing-Reflowed-Solder-TIM-sTIMs-Processes-for-Emerging-Heterogeneous.pdf
sandwiches, consisting of an ENIG-plated FR4 substrate on either side with solder preform between. The solder alloys used were either 99.99In, 97In/3Ag, and 90In/10Ag. Importantly, they were pre-flux coated during the manufacturing process with 1232 LV2K (ROL0
40731 | https://www.smta.org/smtai/SMTAI-2019-Technical-Program.pdf?v=200609010628
Surface Mount Technology Association (SMTA)
40731 | https://www.smta.org/smtai/SMTAI-2019-Technical-Program.pdf?v=200622100619
Surface Mount Technology Association (SMTA)
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