“Powered by science, focused on customers.”Uyemura provides exceptional, problem-solving finishing technology solutions, including the broadest range of PCB finishes, ENIG, ENEPIG, ENEG, ENAG, and much more.Our under bump metallization processes (aluminum, copper and CMOS-compatible) produce exceptional results that are also economical. Our GRX-70 high-speed electrolytic process has definitively solved the problem of tin whiskers, with a solution proven for 22,000+ hours. And our newly formulated RMK-25 is an exceptionally clean, uniform immersion tin with a process cycle 3x faster than the competitive average.