Why HASL (Hot Air Solder Leveling) is Not Recommended for High-Speed PCBs with Press-Fit Components
Introduction In the realm of high-speed printed circuit board (PCB) manufacturing, surface finish selection plays a critical role in determining the final product’s performance, reliability, and manufacturability. Among various surface finish options, Hot Air Solder Leveling (HASL), commonly referred to as solder coating or tin-lead/non-lead plating, has been a traditional choice for many years. However,…


