PCB substrates divided into: 94HB, fireproof board (94VO, FR-1, FR-2), semi fiberglass (22F, CEM-1, CEM-3), and full fiberglass (FR-4).
FR-1: Features:
Halogen free sheet, beneficial for environmental protection
High resistance to leakage and marking index (above 600 volts, special requirements required)
Suitable punching temperature is 40-70 ℃
Bow curvature, twist rate small and stable
FR-2: Features:
Excellent resistance to leakage traces (above 600V)
Low cost and wide range of use
Excellent moisture and heat resistance
Suitable punching temperature of 40-70 ℃
Bow curvature, twist rate small and stable
Superior dimensional stability
CEM-3: Features:
Excellent machinability and punching processability
The electrical performance is equivalent to FR-4, and the processing technology is the same as FR-The wear rate of the drilling nozzle is smaller than FR-4
Multi level leakage resistance (CTI 175V, CTI300V, CTI 600V)
Complies with the specifications of IPC-4101A
FR-4: Features:
Halogen-free, Br/Cl content below 0.09%
Antimony and red phosphor free, Absence of highly toxic dioxins in burning exhaust gas
Harder than KB-6160
