We have compiled the table below as a guideline for PCB finishes. Our focus is to ensure that all surface finishes are in-house for better control and lead times

Property/Requirement Immersion Gold (ENIG) Immersion Silver (Ag) Immersion Tin (Sn) OSP LF-HASL HASL (Tin Lead)
Cost High Medium Medium Lowest Low Low
Estimated Shelf Life (15-28°c) 12 months 6 months 6 months 3-6 months 12 months 12 months
Thermal Shock (PCB MFG) Low Very Low Very Low Very Low High High
Wetting Performance Very Good Good Good Low Best Best
Solder Paste Printing (fine pitch) Excellent Excellent Excellent Excellent Good Good
Integrity/Reliability Of Solder Joint Best Good Good Good Best Best
Al. Wire Bonding (can be used with) Yes Yes No No No No
RoHS Compliant Yes Yes Yes Yes Yes No
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