... .9”x24.4”(530mm x 620mm )Board ThicknessStandard0.004”to0.16 ” ±10% ( 0.1mmto4.0mm±10% )Min. Single/ ... Aspect ratio 20(5:1) Solder Mask Color green,light green,white,black,dark brown,yellow,red,blue Min. solder ... -0.017mm) Silkscreen Color White,black,yellow,red,blue,green Min. Size 0.006” (0.15mm) Electrical testing ... tin,O.S.P (Entek),S/G plating,ENEPIG,G/F plating,carbon… Gold Finger angle 15° 30° 45° ...