TIN ALLOY PLATING PROCESSES Description Lead-free; ideal for solder cap applications on copper posts, designed for flip chip technology. Perfect for fine pitch applications (50-100 μ): our process ensures impeccable soldering capabilities and robust electronic connections. GINTRON STANNOMATTE SOLDER SN BI: Produces dull, silky Tin-Bismuth coatings (Bi: up to 10%) GINTRON STANNOMATTE SOLDER SN AG: Produces fine crystalline, matte tin-silver coatings (Ag: up to 5%) get a quote