HASL vs ENIG: Choosing the Best Surface Finish for Your PCB

 


Surface finishes are crucial in PCB production. They guarantee peak performance and shield exposed copper traces. These finishes are a barrier to oxidation, and they facilitate soldering connections that are reliable. They have a direct impact on the longevity and performance of electronic gadgets. Two common surface finishes have arisen as a result of their distinct benefits and drawbacks: Electroless Nickel Immersion Gold (ENIG) and Hot Air Solder Level (HASL).

The HASL method involves submerging the PCB into molten silver, followed by a step of hot air drying. In contrast, ENIG entails putting a small coating of gold after a nickel layer. A careful choice between HASL and ENIG can have a significant impact on the solderability, shelf-life, and overall reliability of a Printed Circuit Board.

AssemblePCB provides expert services for PCBA. This covers the application and choice of various surface finishes, such as Electroless Nickel Infusion Gold (ENIG), Hot Air Solder Leveling (HASL), or advice on which finish is ideal.

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