Double-sided
Solid materials
Standard | ||
Material type | FR4 (Tg 135 °C), CEM3 | FR4 (Tg 150°C), FR4 (Tg 170 °C), FR5 |
Thickness without the basic copper | FR4
CEM | FR |
Basic copper | 18µm; 35µm | 70µm; 105µm, 140µm, 175µm |
Thickness tolerance including basic copper | MIL-S-13949H tolerance,
last edition, grade II
IPC 4101A grade B | |
Material characteristics | Permittivity er at 1MHz
| 4.6 - 4.9
|
Min. final copper depending on basic copper and PCB thickness
Standard | ||
Final copper /
| 43µm / 18µm / 0.8 ÷ 2.0mm
| 95µm / 70µm / 0.8 ÷ 2.0mm
|
Tolerance | ±10% | ±10% |