Immersion Silver
With the pending lead-free legislation impacting PCB manufacturing on a global scale,
the immersion silver process is rapidly gaining popularity as the lead-free surface finish of choice.
While ENIG presently has a larger market share, over the past 12 months more immersion silver process lines have been installed in PCB facilities than any other finish.
Immersion silver has a controlled thickness of 5-12 micro inches and a shelf life of at least 12 months.
Silver is compatible with most assembly processes, is cost advantageous, and with its increased popularity, is becoming more commonly available.
PCB surface finish list:
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