Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2022/04/pan_APEX06-1.pdf
. With a higher reflow temperature and a longer TAL, more substrate metallization is dissolved and more intermetallics are formed (Arra, 2002). Solder joint strength may be affected by both lack of intermetallic formation as well as excess intermetallics
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2022/06/Optimizing-Reflowed-Solder-TIM-sTIMs-Processes-for-Emerging-Heterogeneous.pdf
reference [7], an optimum gold thickness was determined. At the low end, the gaps in the plating resulted in voiding. At the high end, excess IMC growth occurred during reflow and reliability testing. The bondline thickness (BLT) of indium solder preforms is
1 |