... are some types introduction for Rigid PCB and High Frequency PCB: FR4 PCB(2layer,4 layer,multilayer) Rogers(RO4003,RO4350,RO5880,RO3003 ... Tg greater than about 150 degrees, PCB boards normally Tg≥170 ℃, called high Tg PCB. With the rapid development of the ... 4, CEM-1, CEM-3, High TG, FR4 Halogen Free, Rogers3Board thickness:0.20mm to 3.4mm4Copper thickness:0.5 OZ to 4 OZ5Copper thickness ...