PCB Process Capability · processing layers:1-28 ... OSP, HASL, Electric Nickel / Gold, Chemical nickel / gold, lead-free HASL , Gold finger, immersion Silver, Immersion Tin. · Base materials ... KB, International), high TG (TG150, TG170), halogen-free board (Halogen-free), high frequency plate (Rogers, Teflon, Taconic), made ... Layer sample 1.ROHS compliant PCB 2.ROHS/UL/ISO9001 3.PCB layout design 4.Best ...