S9 UV laser marking integrated circuit packages IC package marking customers say that RFH S9 UV laser spot is ultra-fine S9 UV laser marking effect is more stable than ink printing   Josh, from the United Kingdom, purchased a batch of S9 UV lasers from RFH for IC package marking in October last year.   At the beginning of this month, during our after-sales return visit, Josh said that the RFH S9 ultraviolet laser has a very fine spot, and the marking effect is not easy to wear and fall off. It is several grades higher than ink jet coding, and the marking characters are clear and beautiful.