1.1Immersion silver process There is a process that meets that the RoHS standard, immersion silver, which is the common immersion PCB process. Immersion silver is an updated version of HASL and can be used in most applications as a substitute for immersion Gold rather than chemical Nickel (Au/...
Bittele Electronics provides immersion silver PCB surface finishes as an option for its complete PCB assembly service. It is ideal for SMD and High-Speed Assembly applications.
As the name suggests, this is one of the most complicated surface finish methods for circuit boards. The electroless palladium layer in the middle prevents the formation of black pads. However, features such as unparalleled solderability, silver and aluminum wire bonding, and long shelf life come ...
PCB Ordering Policy Contents There is an ongoing trend shift in surface finish technology from HASL towards alternative finishes such as ENIG, immersion tin, immersion silver, and OSP (organic solderability preservative). This shift is caused by environmental concerns due to the use of lead in ...
Besides immersion gold and gold plating, there are more common surface finishes used in PCB manufacturing such as HASL / Lead Free HASL,Immersion Tin,immersion Silver, OSP / Entek and hard gold pcb surface finish. If you aren't sure what you will need? Consult with a PCB fabricator prior ...
Immersion silver can be measured using XRF equipment. The proper setup of the equipment is critical for reproducible results. The primary use of IAg is as a solderabilty preservative. During assembly the immersion silver dissipates into the solder and allows the formation of a Cu/Sn intermetallic...
CharacteristicsOSPENIGENEPIGImmersion SilverImmersion Tin Shelf Life (controlled conditions)< 12 Months> 12 Months> 12 Months< 12 Months3 – 6 Months Handling / Contact with Soldering SurfacesMust be avoidedShould be avoidedShould be avoidedMust be avoidedMust be avoided ...