... to0.16 ” ±10% ( 0.1mmto4.0mm±10% )Min. Single/ Double-sided:0.008”±0.004”(0.2mm ±0.1mm)4 ... ” (0.02mm) Aspect ratio 20(5:1) Solder Mask Color green,light green,white,black,dark brown,yellow,red ... ,blue Min. solder mask clearance 0.003”(0.07mm) Thickness 0.0005”-0. ... UL Cert. YISO Cert.ISO9001TS16949YISO14000Y Factory Silhouette: green solder mask double sided pcb board