Primary Materials | Typical Tg Value (DSC) | Common Application | Material Example |
Ceramic | ∼250C | Antennas, radio frequency | Rogers RO4350 |
Feature | Parameter (in) | Parameter (mm) |
Layers | 1 – 6 | 1 – 6 |
Max Board Size | 24” x 40” | 609.6 x 1016mm |
Min Board Thickness – 1-2 (layers) | 14mil | 0.35mm |
Min Board Thickness – 4 (layers) | 16mil | 0.4mm |
Min Board Thickness – 6 (layers) | 20mil | 0.5mm |
Board Thickness Range | 14 – 276mil | 0.35 – 7mm |
Max Copper Thickness | 5oz | 175um |
Min Line Width / Space | 2mil / 2mil | 0.05 / 0.05mm |
Min Hole Size | 6mil | 0.15mm |
PTH Dia. Tolerance | ±2mil | ±0.05mm |
NPTH Dia. Tolerance | ±1mil | ±0.025mm |
Hole Position Deviation | ±4mil | ±0.1mm |
Outline Tolerance | ±4mil | ±0.1mm |
S/M Pitch | 3mil | 0.075mm |
Aspect Ratio | 8:1 | 8:1 |
Thermal Shock | 5 x 10Sec @288 | 5 x 10Sec @288 |
Warp & Twist | <= 3% | <= 3% |
Flammability | 94V-0 | 94V-0 |
Impedance Control | ±7% | ±7% |