5 au solderability results

:  Impact functionality  Impact reliability 5 Typical Metal Combinations to be Soldered  Cu to Cu  Cu to Sn/Pb  Pd to Sn/Pb  Au to Sn/Pb  Ag to Ag  Sn to Ni  SS to SS  SAC to Sn/Pb  ImAg to SAC  ImSn to Sn/Pb  ENIG to SAC & SnPb  Etc. 6 Flux Selection Process

| https://www.eptac.com/wp-content/uploads/2007/10/webinar_eptac_10_17_07.pdf

:  Impact functionality  Impact reliability 5 Typical Metal Combinations to be Soldered  Cu to Cu  Cu to Sn/Pb  Pd to Sn/Pb  Au to Sn/Pb  Ag to Ag  Sn to Ni  SS to SS  SAC to Sn/Pb  ImAg to SAC  ImSn to Sn/Pb  ENIG to SAC & SnPb  Etc. 6 Flux Selection Process

| https://www.eptac.com/wp-content/uploads/2021/11/webinar_eptac_10_17_07.pdf

Journal of SMT Articles

Surface Mount Technology Association (SMTA) | https://www.smta.org/knowledge/journal.cfm

Viktoria Rawinski Abstract 31-2 Understanding the Higher Wire Bond Strength Advantage of Au/Pd/Au (IGEPIG) as Compared to Alternate Immersion Gold Finishes, Before and After Heat Treatment with Different Types of Wires Tatsushi Someya, Tetsuya Sasamura, Ph.D

Surface Mount Technology Association (SMTA)

Optimizing Reflowed Solder TIM (sTIMs) Processes for Emerging Heterogeneous Integrated Packages

Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2022/06/Optimizing-Reflowed-Solder-TIM-sTIMs-Processes-for-Emerging-Heterogeneous.pdf

to be joined using sTIM are usually gold, with the silicon backside typically being PVD-deposited Ti/NiV/Au (80-200nm Au), and copper heatspreader/lids plated with Ni/Au (usually with 0.3-0.8um Au). Except for the inevitable presence of a film of

Heller Industries Inc.