Printed Circuit Board of 6 layers Special thickness of 1.0 mm Special holes size of 0.015mm ... Red solder mask 6 layers PCB board1. Special thickness of 1.0 mm2. Minimum track width of 0.1mm3 ... , F4B, F4BK, F4BT, TP, PF, CEM-1, CEM-3, etc. Board thickness: 0.30 to 3.20mm (12 to 26mil) Copper ... thickness: 0.50 to 5 ounce Solder mask: LPI solder mask, ...