日: 2025年11月19日

HASL vs ENIG: Choosing the Right PCB Surface Finish

This article aims to provide a comparative analysis of HASL vs ENIG, providing valuable insights to aid in making informed decisions for PCB design and manufacturing HASL vs ENIG Surface Finish Introduction In PCB manufacturing, surface finishes play a crucial role in protecting exposed copper traces and ensuring optimal performance. These finishes act as a barrier against oxidation and facilitate reliable soldering connections, directly impacting the functionality and longevity of electronic devices. Two prevalent surface finishes, HASL (Hot Air Solder Level) and ENIG (Electroless Nickel Immersion Gold) have emerged as popular options due to their distinct advantages and disadvantages.  The HASL process involves immersing the PCB in molten solder, followed by a hot air drying step. […]